./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--usb--storage--uas.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--storage--uas.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro --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 00358a78c5c5addd9e5a7ab9d5fbe39a67a857ec32575d905ee2c6c7ab2b30b6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:32:43,440 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:32:43,443 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:32:43,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:32:43,473 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:32:43,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:32:43,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:32:43,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:32:43,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:32:43,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:32:43,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:32:43,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:32:43,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:32:43,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:32:43,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:32:43,508 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:32:43,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:32:43,511 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:32:43,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:32:43,521 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:32:43,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:32:43,524 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:32:43,528 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:32:43,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:32:43,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:32:43,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:32:43,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:32:43,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:32:43,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:32:43,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:32:43,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:32:43,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:32:43,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:32:43,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:32:43,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:32:43,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:32:43,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:32:43,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:32:43,555 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:32:43,556 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:32:43,557 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:32:43,558 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 18:32:43,608 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:32:43,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:32:43,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:32:43,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:32:43,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:32:43,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:32:43,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:32:43,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:32:43,613 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:32:43,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:32:43,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:32:43,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:32:43,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 18:32:43,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:32:43,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 18:32:43,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 18:32:43,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:32:43,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 18:32:43,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:32:43,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:32:43,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:32:43,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:32:43,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:32:43,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:32:43,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 18:32:43,618 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:32:43,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:32:43,621 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 18:32:43,621 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 18:32:43,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 18:32:43,621 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 00358a78c5c5addd9e5a7ab9d5fbe39a67a857ec32575d905ee2c6c7ab2b30b6 [2022-11-18 18:32:44,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:32:44,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:32:44,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:32:44,034 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:32:44,035 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:32:44,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2022-11-18 18:32:44,102 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/data/9bb12be59/c9faa2ce8c944034a9ab5b5d5d79e2a1/FLAG77adca2e5 [2022-11-18 18:32:45,193 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:32:45,194 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2022-11-18 18:32:45,243 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/data/9bb12be59/c9faa2ce8c944034a9ab5b5d5d79e2a1/FLAG77adca2e5 [2022-11-18 18:32:45,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/data/9bb12be59/c9faa2ce8c944034a9ab5b5d5d79e2a1 [2022-11-18 18:32:45,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:32:45,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:32:45,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:32:45,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:32:45,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:32:45,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:32:45" (1/1) ... [2022-11-18 18:32:45,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ede08bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:45, skipping insertion in model container [2022-11-18 18:32:45,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:32:45" (1/1) ... [2022-11-18 18:32:45,570 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:32:45,716 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:32:47,413 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[218619,218632] [2022-11-18 18:32:47,627 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:32:47,680 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:32:48,139 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--storage--uas.ko-entry_point.cil.out.i[218619,218632] [2022-11-18 18:32:48,167 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:32:48,266 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:32:48,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48 WrapperNode [2022-11-18 18:32:48,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:32:48,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:32:48,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:32:48,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:32:48,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,593 INFO L138 Inliner]: procedures = 250, calls = 1509, calls flagged for inlining = 86, calls inlined = 78, statements flattened = 3210 [2022-11-18 18:32:48,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:32:48,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:32:48,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:32:48,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:32:48,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,809 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,830 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:32:48,872 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:32:48,872 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:32:48,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:32:48,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (1/1) ... [2022-11-18 18:32:48,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:32:48,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:32:48,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:32:48,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a6da9cbb-61ca-486b-8bc6-d1eeb82fe054/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:32:48,986 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2022-11-18 18:32:48,986 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2022-11-18 18:32:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-18 18:32:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-18 18:32:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure uas_zap_pending [2022-11-18 18:32:48,987 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_zap_pending [2022-11-18 18:32:48,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 18:32:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 18:32:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 18:32:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 18:32:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 18:32:48,988 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 18:32:48,988 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-18 18:32:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-18 18:32:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure uas_alloc_data_urb [2022-11-18 18:32:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_alloc_data_urb [2022-11-18 18:32:48,989 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 18:32:48,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 18:32:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-18 18:32:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-18 18:32:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2022-11-18 18:32:48,990 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2022-11-18 18:32:48,990 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 18:32:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 18:32:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure uas_add_work [2022-11-18 18:32:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_add_work [2022-11-18 18:32:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_3 [2022-11-18 18:32:48,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_3 [2022-11-18 18:32:48,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 18:32:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 18:32:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 18:32:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 18:32:48,992 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_endpoints [2022-11-18 18:32:48,992 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_endpoints [2022-11-18 18:32:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 18:32:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 18:32:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure uas_log_cmd_state [2022-11-18 18:32:48,993 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_log_cmd_state [2022-11-18 18:32:48,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:32:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 18:32:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 18:32:48,994 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-11-18 18:32:48,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-11-18 18:32:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_urb [2022-11-18 18:32:48,995 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_urb [2022-11-18 18:32:48,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 18:32:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-18 18:32:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-18 18:32:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-18 18:32:48,996 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-18 18:32:48,996 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 18:32:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 18:32:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure uas_xfer_data [2022-11-18 18:32:48,997 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_xfer_data [2022-11-18 18:32:48,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2022-11-18 18:32:48,998 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2022-11-18 18:32:48,998 INFO L130 BoogieDeclarations]: Found specification of procedure usb_wait_anchor_empty_timeout [2022-11-18 18:32:49,000 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_wait_anchor_empty_timeout [2022-11-18 18:32:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:32:49,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 18:32:49,001 INFO L130 BoogieDeclarations]: Found specification of procedure uas_try_complete [2022-11-18 18:32:49,001 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_try_complete [2022-11-18 18:32:49,002 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_report_bus_reset [2022-11-18 18:32:49,002 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_report_bus_reset [2022-11-18 18:32:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 18:32:49,003 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 18:32:49,003 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-18 18:32:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-18 18:32:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 18:32:49,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 18:32:49,004 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-18 18:32:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-18 18:32:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure uas_wait_for_pending_cmnds [2022-11-18 18:32:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_wait_for_pending_cmnds [2022-11-18 18:32:49,005 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2022-11-18 18:32:49,005 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2022-11-18 18:32:49,006 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-18 18:32:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-18 18:32:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-18 18:32:49,007 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-18 18:32:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 18:32:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure uas_data_cmplt [2022-11-18 18:32:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_data_cmplt [2022-11-18 18:32:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-18 18:32:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-18 18:32:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2022-11-18 18:32:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2022-11-18 18:32:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 18:32:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure uas_shutdown [2022-11-18 18:32:49,009 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_shutdown [2022-11-18 18:32:49,009 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:32:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2022-11-18 18:32:49,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2022-11-18 18:32:49,010 INFO L130 BoogieDeclarations]: Found specification of procedure uas_do_work [2022-11-18 18:32:49,011 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_do_work [2022-11-18 18:32:49,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 18:32:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 18:32:49,012 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-18 18:32:49,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-18 18:32:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-18 18:32:49,013 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-18 18:32:49,013 INFO L130 BoogieDeclarations]: Found specification of procedure uas_disconnect [2022-11-18 18:32:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_disconnect [2022-11-18 18:32:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2022-11-18 18:32:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2022-11-18 18:32:49,014 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2022-11-18 18:32:49,014 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2022-11-18 18:32:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:32:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure usb_pipe_endpoint [2022-11-18 18:32:49,015 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_pipe_endpoint [2022-11-18 18:32:49,015 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_out [2022-11-18 18:32:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_out [2022-11-18 18:32:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 18:32:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 18:32:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 18:32:49,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 18:32:49,016 INFO L130 BoogieDeclarations]: Found specification of procedure uas_stat_cmplt [2022-11-18 18:32:49,017 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_stat_cmplt [2022-11-18 18:32:49,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 18:32:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:32:49,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2022-11-18 18:32:49,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2022-11-18 18:32:49,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 18:32:49,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 18:32:49,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:32:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:32:49,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 18:32:49,025 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_host_put [2022-11-18 18:32:49,030 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_host_put [2022-11-18 18:32:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure uas_configure_endpoints [2022-11-18 18:32:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_configure_endpoints [2022-11-18 18:32:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-18 18:32:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-18 18:32:49,031 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_unsubmitted_urbs [2022-11-18 18:32:49,031 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_unsubmitted_urbs [2022-11-18 18:32:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure uas_find_uas_alt_setting [2022-11-18 18:32:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_find_uas_alt_setting [2022-11-18 18:32:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-18 18:32:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-18 18:32:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_in [2022-11-18 18:32:49,032 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_in [2022-11-18 18:32:49,032 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 18:32:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 18:32:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure lock_is_held [2022-11-18 18:32:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_is_held [2022-11-18 18:32:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure uas_submit_urbs [2022-11-18 18:32:49,033 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_submit_urbs [2022-11-18 18:32:49,033 INFO L130 BoogieDeclarations]: Found specification of procedure usb_reset_device [2022-11-18 18:32:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_reset_device [2022-11-18 18:32:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_max_hw_sectors [2022-11-18 18:32:49,034 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_max_hw_sectors [2022-11-18 18:32:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:32:49,034 INFO L130 BoogieDeclarations]: Found specification of procedure uas_free_streams [2022-11-18 18:32:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure uas_free_streams [2022-11-18 18:32:49,037 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-11-18 18:32:49,037 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-11-18 18:32:49,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:32:49,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:32:49,868 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:32:49,874 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:32:50,313 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 18:32:53,813 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:32:53,828 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:32:53,829 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 18:32:53,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:32:53 BoogieIcfgContainer [2022-11-18 18:32:53,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:32:53,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:32:53,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:32:53,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:32:53,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:32:45" (1/3) ... [2022-11-18 18:32:53,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c5e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:32:53, skipping insertion in model container [2022-11-18 18:32:53,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:32:48" (2/3) ... [2022-11-18 18:32:53,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40c5e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:32:53, skipping insertion in model container [2022-11-18 18:32:53,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:32:53" (3/3) ... [2022-11-18 18:32:53,843 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--storage--uas.ko-entry_point.cil.out.i [2022-11-18 18:32:53,864 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:32:53,864 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 18:32:53,962 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:32:53,969 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15974e34, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:32:53,969 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 18:32:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 1078 states, 745 states have (on average 1.338255033557047) internal successors, (997), 784 states have internal predecessors, (997), 261 states have call successors, (261), 71 states have call predecessors, (261), 70 states have return successors, (255), 247 states have call predecessors, (255), 255 states have call successors, (255) [2022-11-18 18:32:53,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-18 18:32:53,993 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:53,994 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:32:53,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:32:54,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:54,001 INFO L85 PathProgramCache]: Analyzing trace with hash 479790372, now seen corresponding path program 1 times [2022-11-18 18:32:54,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:54,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772978656] [2022-11-18 18:32:54,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:54,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:54,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:32:54,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:32:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:32:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:32:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:32:54,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:32:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:32:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:32:54,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:32:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:32:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:32:54,944 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-18 18:32:54,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:32:54,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772978656] [2022-11-18 18:32:54,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772978656] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:32:54,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:32:54,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 18:32:54,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930985943] [2022-11-18 18:32:54,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:32:54,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:32:54,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:32:55,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:32:55,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:32:55,041 INFO L87 Difference]: Start difference. First operand has 1078 states, 745 states have (on average 1.338255033557047) internal successors, (997), 784 states have internal predecessors, (997), 261 states have call successors, (261), 71 states have call predecessors, (261), 70 states have return successors, (255), 247 states have call predecessors, (255), 255 states have call successors, (255) Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 18:32:59,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:32:59,303 INFO L93 Difference]: Finished difference Result 2472 states and 3631 transitions. [2022-11-18 18:32:59,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:32:59,306 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2022-11-18 18:32:59,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:32:59,336 INFO L225 Difference]: With dead ends: 2472 [2022-11-18 18:32:59,336 INFO L226 Difference]: Without dead ends: 1386 [2022-11-18 18:32:59,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:32:59,353 INFO L413 NwaCegarLoop]: 1165 mSDtfsCounter, 1638 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 1357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1664 SdHoareTripleChecker+Valid, 1816 SdHoareTripleChecker+Invalid, 2213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1357 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:32:59,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1664 Valid, 1816 Invalid, 2213 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1357 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-18 18:32:59,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1386 states. [2022-11-18 18:32:59,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1386 to 1065. [2022-11-18 18:32:59,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1065 states, 740 states have (on average 1.3283783783783785) internal successors, (983), 771 states have internal predecessors, (983), 255 states have call successors, (255), 70 states have call predecessors, (255), 69 states have return successors, (249), 241 states have call predecessors, (249), 249 states have call successors, (249) [2022-11-18 18:32:59,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1065 states to 1065 states and 1487 transitions. [2022-11-18 18:32:59,508 INFO L78 Accepts]: Start accepts. Automaton has 1065 states and 1487 transitions. Word has length 72 [2022-11-18 18:32:59,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:32:59,509 INFO L495 AbstractCegarLoop]: Abstraction has 1065 states and 1487 transitions. [2022-11-18 18:32:59,509 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (7), 5 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-18 18:32:59,509 INFO L276 IsEmpty]: Start isEmpty. Operand 1065 states and 1487 transitions. [2022-11-18 18:32:59,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-18 18:32:59,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:32:59,513 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:32:59,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:32:59,513 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:32:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:32:59,514 INFO L85 PathProgramCache]: Analyzing trace with hash 426087466, now seen corresponding path program 1 times [2022-11-18 18:32:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:32:59,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057710203] [2022-11-18 18:32:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:32:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:32:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:33:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:00,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:33:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:00,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:33:00,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-18 18:33:00,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:00,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057710203] [2022-11-18 18:33:00,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057710203] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:00,205 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:00,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:00,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621153365] [2022-11-18 18:33:00,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:00,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:00,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:00,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:00,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:00,213 INFO L87 Difference]: Start difference. First operand 1065 states and 1487 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 18:33:08,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:08,225 INFO L93 Difference]: Finished difference Result 3792 states and 5480 transitions. [2022-11-18 18:33:08,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:33:08,226 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 72 [2022-11-18 18:33:08,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:08,252 INFO L225 Difference]: With dead ends: 3792 [2022-11-18 18:33:08,252 INFO L226 Difference]: Without dead ends: 2740 [2022-11-18 18:33:08,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:33:08,259 INFO L413 NwaCegarLoop]: 1386 mSDtfsCounter, 3696 mSDsluCounter, 2247 mSDsCounter, 0 mSdLazyCounter, 2442 mSolverCounterSat, 2096 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3878 SdHoareTripleChecker+Valid, 3633 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2096 IncrementalHoareTripleChecker+Valid, 2442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:08,260 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3878 Valid, 3633 Invalid, 4538 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2096 Valid, 2442 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2022-11-18 18:33:08,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2740 states. [2022-11-18 18:33:08,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2740 to 2094. [2022-11-18 18:33:08,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2094 states, 1456 states have (on average 1.3289835164835164) internal successors, (1935), 1513 states have internal predecessors, (1935), 499 states have call successors, (499), 139 states have call predecessors, (499), 138 states have return successors, (493), 477 states have call predecessors, (493), 493 states have call successors, (493) [2022-11-18 18:33:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2094 states to 2094 states and 2927 transitions. [2022-11-18 18:33:08,464 INFO L78 Accepts]: Start accepts. Automaton has 2094 states and 2927 transitions. Word has length 72 [2022-11-18 18:33:08,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:08,465 INFO L495 AbstractCegarLoop]: Abstraction has 2094 states and 2927 transitions. [2022-11-18 18:33:08,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (7), 5 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-18 18:33:08,465 INFO L276 IsEmpty]: Start isEmpty. Operand 2094 states and 2927 transitions. [2022-11-18 18:33:08,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-11-18 18:33:08,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:08,477 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:08,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:33:08,478 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:08,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:08,479 INFO L85 PathProgramCache]: Analyzing trace with hash -776989773, now seen corresponding path program 1 times [2022-11-18 18:33:08,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:08,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733033458] [2022-11-18 18:33:08,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:08,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:08,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:08,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:33:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:08,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:33:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:08,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:33:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2022-11-18 18:33:08,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-18 18:33:08,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:08,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733033458] [2022-11-18 18:33:08,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733033458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:08,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:08,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:08,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889487221] [2022-11-18 18:33:08,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:08,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:08,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:08,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:08,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:08,964 INFO L87 Difference]: Start difference. First operand 2094 states and 2927 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:11,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:17,388 INFO L93 Difference]: Finished difference Result 7207 states and 10415 transitions. [2022-11-18 18:33:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:33:17,389 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 81 [2022-11-18 18:33:17,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:17,439 INFO L225 Difference]: With dead ends: 7207 [2022-11-18 18:33:17,439 INFO L226 Difference]: Without dead ends: 5136 [2022-11-18 18:33:17,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:33:17,457 INFO L413 NwaCegarLoop]: 1501 mSDtfsCounter, 3212 mSDsluCounter, 2286 mSDsCounter, 0 mSdLazyCounter, 2470 mSolverCounterSat, 1834 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3351 SdHoareTripleChecker+Valid, 3787 SdHoareTripleChecker+Invalid, 4304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1834 IncrementalHoareTripleChecker+Valid, 2470 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:17,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3351 Valid, 3787 Invalid, 4304 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1834 Valid, 2470 Invalid, 0 Unknown, 0 Unchecked, 7.9s Time] [2022-11-18 18:33:17,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5136 states. [2022-11-18 18:33:17,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5136 to 4051. [2022-11-18 18:33:17,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4051 states, 2804 states have (on average 1.3320256776034236) internal successors, (3735), 2927 states have internal predecessors, (3735), 970 states have call successors, (970), 263 states have call predecessors, (970), 276 states have return successors, (1034), 932 states have call predecessors, (1034), 964 states have call successors, (1034) [2022-11-18 18:33:17,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 5739 transitions. [2022-11-18 18:33:17,787 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 5739 transitions. Word has length 81 [2022-11-18 18:33:17,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:17,788 INFO L495 AbstractCegarLoop]: Abstraction has 4051 states and 5739 transitions. [2022-11-18 18:33:17,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:17,793 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 5739 transitions. [2022-11-18 18:33:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-18 18:33:17,797 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:17,797 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:17,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:33:17,797 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:17,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:17,798 INFO L85 PathProgramCache]: Analyzing trace with hash -953333441, now seen corresponding path program 1 times [2022-11-18 18:33:17,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:17,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011077006] [2022-11-18 18:33:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:17,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:17,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:18,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:18,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:33:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:33:18,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:18,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:18,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:33:18,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:33:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:18,373 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-18 18:33:18,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:18,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011077006] [2022-11-18 18:33:18,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011077006] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:18,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:18,374 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:18,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482052244] [2022-11-18 18:33:18,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:18,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:18,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:18,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:18,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:18,375 INFO L87 Difference]: Start difference. First operand 4051 states and 5739 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:21,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:23,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:23,879 INFO L93 Difference]: Finished difference Result 5097 states and 7467 transitions. [2022-11-18 18:33:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:33:23,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 92 [2022-11-18 18:33:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:23,919 INFO L225 Difference]: With dead ends: 5097 [2022-11-18 18:33:23,919 INFO L226 Difference]: Without dead ends: 5094 [2022-11-18 18:33:23,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:33:23,926 INFO L413 NwaCegarLoop]: 1157 mSDtfsCounter, 2433 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 1138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2592 SdHoareTripleChecker+Valid, 2313 SdHoareTripleChecker+Invalid, 2395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1138 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:23,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2592 Valid, 2313 Invalid, 2395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1138 Valid, 1257 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-11-18 18:33:23,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5094 states. [2022-11-18 18:33:24,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5094 to 4050. [2022-11-18 18:33:24,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4050 states, 2804 states have (on average 1.3316690442225392) internal successors, (3734), 2926 states have internal predecessors, (3734), 969 states have call successors, (969), 263 states have call predecessors, (969), 276 states have return successors, (1034), 932 states have call predecessors, (1034), 964 states have call successors, (1034) [2022-11-18 18:33:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4050 states to 4050 states and 5737 transitions. [2022-11-18 18:33:24,250 INFO L78 Accepts]: Start accepts. Automaton has 4050 states and 5737 transitions. Word has length 92 [2022-11-18 18:33:24,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:24,254 INFO L495 AbstractCegarLoop]: Abstraction has 4050 states and 5737 transitions. [2022-11-18 18:33:24,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:24,254 INFO L276 IsEmpty]: Start isEmpty. Operand 4050 states and 5737 transitions. [2022-11-18 18:33:24,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-11-18 18:33:24,260 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:24,260 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:24,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:33:24,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:24,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:24,261 INFO L85 PathProgramCache]: Analyzing trace with hash 511067548, now seen corresponding path program 1 times [2022-11-18 18:33:24,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:24,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918189887] [2022-11-18 18:33:24,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:24,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:24,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:24,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:24,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:33:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:33:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:33:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:33:24,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:24,720 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-18 18:33:24,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:24,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918189887] [2022-11-18 18:33:24,720 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918189887] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:24,720 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:24,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:24,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024158661] [2022-11-18 18:33:24,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:24,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:24,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:24,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:24,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:24,723 INFO L87 Difference]: Start difference. First operand 4050 states and 5737 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:28,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:28,362 INFO L93 Difference]: Finished difference Result 5096 states and 7465 transitions. [2022-11-18 18:33:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:33:28,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 93 [2022-11-18 18:33:28,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:28,397 INFO L225 Difference]: With dead ends: 5096 [2022-11-18 18:33:28,398 INFO L226 Difference]: Without dead ends: 5093 [2022-11-18 18:33:28,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:33:28,405 INFO L413 NwaCegarLoop]: 1182 mSDtfsCounter, 2971 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 1564 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3128 SdHoareTripleChecker+Valid, 1821 SdHoareTripleChecker+Invalid, 2465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1564 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:28,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3128 Valid, 1821 Invalid, 2465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1564 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-18 18:33:28,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5093 states. [2022-11-18 18:33:28,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5093 to 4049. [2022-11-18 18:33:28,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4049 states, 2804 states have (on average 1.3313124108416547) internal successors, (3733), 2925 states have internal predecessors, (3733), 968 states have call successors, (968), 263 states have call predecessors, (968), 276 states have return successors, (1034), 932 states have call predecessors, (1034), 964 states have call successors, (1034) [2022-11-18 18:33:28,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4049 states to 4049 states and 5735 transitions. [2022-11-18 18:33:28,796 INFO L78 Accepts]: Start accepts. Automaton has 4049 states and 5735 transitions. Word has length 93 [2022-11-18 18:33:28,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:28,797 INFO L495 AbstractCegarLoop]: Abstraction has 4049 states and 5735 transitions. [2022-11-18 18:33:28,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:28,797 INFO L276 IsEmpty]: Start isEmpty. Operand 4049 states and 5735 transitions. [2022-11-18 18:33:28,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-11-18 18:33:28,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:28,799 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:28,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:33:28,800 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:28,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:28,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1337137182, now seen corresponding path program 1 times [2022-11-18 18:33:28,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:28,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593720858] [2022-11-18 18:33:28,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:28,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:28,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:29,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:29,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:33:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:33:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:33:29,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:33:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:29,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:29,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:29,221 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-18 18:33:29,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:29,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593720858] [2022-11-18 18:33:29,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593720858] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:29,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:29,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:29,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307675974] [2022-11-18 18:33:29,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:29,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:29,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:29,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:29,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:29,224 INFO L87 Difference]: Start difference. First operand 4049 states and 5735 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:32,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:32,703 INFO L93 Difference]: Finished difference Result 5095 states and 7463 transitions. [2022-11-18 18:33:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:33:32,704 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), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2022-11-18 18:33:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:32,737 INFO L225 Difference]: With dead ends: 5095 [2022-11-18 18:33:32,737 INFO L226 Difference]: Without dead ends: 5092 [2022-11-18 18:33:32,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 18:33:32,742 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 2987 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 1590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3145 SdHoareTripleChecker+Valid, 1794 SdHoareTripleChecker+Invalid, 2489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1590 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:32,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3145 Valid, 1794 Invalid, 2489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1590 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-18 18:33:32,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5092 states. [2022-11-18 18:33:33,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5092 to 4048. [2022-11-18 18:33:33,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 2804 states have (on average 1.3309557774607703) internal successors, (3732), 2924 states have internal predecessors, (3732), 967 states have call successors, (967), 263 states have call predecessors, (967), 276 states have return successors, (1034), 932 states have call predecessors, (1034), 964 states have call successors, (1034) [2022-11-18 18:33:33,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 5733 transitions. [2022-11-18 18:33:33,119 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 5733 transitions. Word has length 94 [2022-11-18 18:33:33,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:33,120 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 5733 transitions. [2022-11-18 18:33:33,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:33,121 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 5733 transitions. [2022-11-18 18:33:33,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-18 18:33:33,123 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:33,123 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:33,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:33:33,124 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:33,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:33,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1498063199, now seen corresponding path program 1 times [2022-11-18 18:33:33,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:33,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351406959] [2022-11-18 18:33:33,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:33,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:33,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:33,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:33:33,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:33,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:33:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:33,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:33:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:33:33,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:33,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:33,665 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-11-18 18:33:33,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:33,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351406959] [2022-11-18 18:33:33,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351406959] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:33,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:33,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 18:33:33,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059582707] [2022-11-18 18:33:33,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:33,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:33:33,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:33,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:33:33,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:33:33,668 INFO L87 Difference]: Start difference. First operand 4048 states and 5733 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:37,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:33:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:43,789 INFO L93 Difference]: Finished difference Result 14166 states and 20578 transitions. [2022-11-18 18:33:43,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 18:33:43,790 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 95 [2022-11-18 18:33:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:43,844 INFO L225 Difference]: With dead ends: 14166 [2022-11-18 18:33:43,844 INFO L226 Difference]: Without dead ends: 10133 [2022-11-18 18:33:43,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:33:43,865 INFO L413 NwaCegarLoop]: 1437 mSDtfsCounter, 3397 mSDsluCounter, 2841 mSDsCounter, 0 mSdLazyCounter, 3080 mSolverCounterSat, 1907 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3577 SdHoareTripleChecker+Valid, 4278 SdHoareTripleChecker+Invalid, 4987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1907 IncrementalHoareTripleChecker+Valid, 3080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:43,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3577 Valid, 4278 Invalid, 4987 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1907 Valid, 3080 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-11-18 18:33:43,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10133 states. [2022-11-18 18:33:44,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10133 to 8039. [2022-11-18 18:33:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8039 states, 5565 states have (on average 1.3313566936208445) internal successors, (7409), 5804 states have internal predecessors, (7409), 1925 states have call successors, (1925), 523 states have call predecessors, (1925), 548 states have return successors, (2062), 1855 states have call predecessors, (2062), 1922 states have call successors, (2062) [2022-11-18 18:33:44,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8039 states to 8039 states and 11396 transitions. [2022-11-18 18:33:44,640 INFO L78 Accepts]: Start accepts. Automaton has 8039 states and 11396 transitions. Word has length 95 [2022-11-18 18:33:44,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:33:44,640 INFO L495 AbstractCegarLoop]: Abstraction has 8039 states and 11396 transitions. [2022-11-18 18:33:44,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-18 18:33:44,642 INFO L276 IsEmpty]: Start isEmpty. Operand 8039 states and 11396 transitions. [2022-11-18 18:33:44,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 18:33:44,657 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:33:44,657 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:33:44,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:33:44,658 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:33:44,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:33:44,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1384699708, now seen corresponding path program 1 times [2022-11-18 18:33:44,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:33:44,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893336537] [2022-11-18 18:33:44,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:33:44,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:33:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:33:45,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:33:45,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:45,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:33:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:33:45,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:45,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:33:45,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:33:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-18 18:33:45,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 18:33:45,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-11-18 18:33:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-18 18:33:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 18:33:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-18 18:33:45,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:33:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 18:33:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-18 18:33:45,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 18:33:45,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-18 18:33:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:33:45,288 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-11-18 18:33:45,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:33:45,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893336537] [2022-11-18 18:33:45,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893336537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:33:45,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:33:45,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-18 18:33:45,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199669655] [2022-11-18 18:33:45,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:33:45,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-18 18:33:45,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:33:45,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-18 18:33:45,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-18 18:33:45,291 INFO L87 Difference]: Start difference. First operand 8039 states and 11396 transitions. Second operand has 9 states, 8 states have (on average 11.625) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 18:33:58,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:33:58,848 INFO L93 Difference]: Finished difference Result 28120 states and 41536 transitions. [2022-11-18 18:33:58,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:33:58,849 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) Word has length 184 [2022-11-18 18:33:58,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:33:58,947 INFO L225 Difference]: With dead ends: 28120 [2022-11-18 18:33:58,947 INFO L226 Difference]: Without dead ends: 20104 [2022-11-18 18:33:58,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=103, Invalid=239, Unknown=0, NotChecked=0, Total=342 [2022-11-18 18:33:58,980 INFO L413 NwaCegarLoop]: 723 mSDtfsCounter, 5460 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 6375 mSolverCounterSat, 4401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5614 SdHoareTripleChecker+Valid, 2890 SdHoareTripleChecker+Invalid, 10776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4401 IncrementalHoareTripleChecker+Valid, 6375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-18 18:33:58,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5614 Valid, 2890 Invalid, 10776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4401 Valid, 6375 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2022-11-18 18:33:59,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20104 states. [2022-11-18 18:34:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20104 to 15167. [2022-11-18 18:34:00,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15167 states, 10390 states have (on average 1.3223291626564004) internal successors, (13739), 10827 states have internal predecessors, (13739), 3725 states have call successors, (3725), 920 states have call predecessors, (3725), 1051 states have return successors, (4350), 3683 states have call predecessors, (4350), 3722 states have call successors, (4350) [2022-11-18 18:34:00,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15167 states to 15167 states and 21814 transitions. [2022-11-18 18:34:00,602 INFO L78 Accepts]: Start accepts. Automaton has 15167 states and 21814 transitions. Word has length 184 [2022-11-18 18:34:00,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:00,603 INFO L495 AbstractCegarLoop]: Abstraction has 15167 states and 21814 transitions. [2022-11-18 18:34:00,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.625) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (17), 2 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-18 18:34:00,603 INFO L276 IsEmpty]: Start isEmpty. Operand 15167 states and 21814 transitions. [2022-11-18 18:34:00,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-18 18:34:00,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:00,636 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:00,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:34:00,637 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:00,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1500955089, now seen corresponding path program 1 times [2022-11-18 18:34:00,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:00,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450540592] [2022-11-18 18:34:00,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:00,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:00,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:01,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:34:01,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:34:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:01,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:01,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:34:01,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:34:01,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:01,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:01,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 18:34:01,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:34:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-18 18:34:01,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-11-18 18:34:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-18 18:34:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-18 18:34:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-11-18 18:34:01,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-18 18:34:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-18 18:34:01,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-11-18 18:34:01,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:01,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450540592] [2022-11-18 18:34:01,352 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450540592] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:01,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:34:01,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 18:34:01,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268879441] [2022-11-18 18:34:01,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:01,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:34:01,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:01,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:34:01,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:34:01,355 INFO L87 Difference]: Start difference. First operand 15167 states and 21814 transitions. Second operand has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-18 18:34:15,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:15,886 INFO L93 Difference]: Finished difference Result 39672 states and 59715 transitions. [2022-11-18 18:34:15,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 18:34:15,887 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) Word has length 207 [2022-11-18 18:34:15,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:16,020 INFO L225 Difference]: With dead ends: 39672 [2022-11-18 18:34:16,021 INFO L226 Difference]: Without dead ends: 24532 [2022-11-18 18:34:16,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:34:16,095 INFO L413 NwaCegarLoop]: 1067 mSDtfsCounter, 3461 mSDsluCounter, 4993 mSDsCounter, 0 mSdLazyCounter, 8307 mSolverCounterSat, 2172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3622 SdHoareTripleChecker+Valid, 6060 SdHoareTripleChecker+Invalid, 10479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2172 IncrementalHoareTripleChecker+Valid, 8307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:16,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3622 Valid, 6060 Invalid, 10479 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2172 Valid, 8307 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2022-11-18 18:34:16,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24532 states. [2022-11-18 18:34:17,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24532 to 15183. [2022-11-18 18:34:17,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15183 states, 10406 states have (on average 1.3218335575629445) internal successors, (13755), 10843 states have internal predecessors, (13755), 3725 states have call successors, (3725), 920 states have call predecessors, (3725), 1051 states have return successors, (4350), 3683 states have call predecessors, (4350), 3722 states have call successors, (4350) [2022-11-18 18:34:17,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15183 states to 15183 states and 21830 transitions. [2022-11-18 18:34:17,893 INFO L78 Accepts]: Start accepts. Automaton has 15183 states and 21830 transitions. Word has length 207 [2022-11-18 18:34:17,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:17,894 INFO L495 AbstractCegarLoop]: Abstraction has 15183 states and 21830 transitions. [2022-11-18 18:34:17,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 12.777777777777779) internal successors, (115), 4 states have internal predecessors, (115), 3 states have call successors, (19), 8 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-18 18:34:17,894 INFO L276 IsEmpty]: Start isEmpty. Operand 15183 states and 21830 transitions. [2022-11-18 18:34:17,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-18 18:34:17,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:17,929 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:17,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:34:17,929 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:17,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1355286727, now seen corresponding path program 1 times [2022-11-18 18:34:17,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:17,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220459009] [2022-11-18 18:34:17,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:17,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:18,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:34:18,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:18,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:34:18,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:34:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:34:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:18,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 18:34:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:34:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:34:19,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 18:34:19,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:34:19,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:34:19,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-18 18:34:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-18 18:34:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-18 18:34:19,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-18 18:34:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:19,138 INFO L134 CoverageAnalysis]: Checked inductivity of 125 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-11-18 18:34:19,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:19,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220459009] [2022-11-18 18:34:19,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220459009] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:19,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:34:19,139 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-18 18:34:19,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123423155] [2022-11-18 18:34:19,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:19,140 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-18 18:34:19,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:19,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-18 18:34:19,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-11-18 18:34:19,141 INFO L87 Difference]: Start difference. First operand 15183 states and 21830 transitions. Second operand has 11 states, 10 states have (on average 13.5) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (20), 8 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:34:35,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:35,295 INFO L93 Difference]: Finished difference Result 35411 states and 52644 transitions. [2022-11-18 18:34:35,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-18 18:34:35,296 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.5) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (20), 8 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) Word has length 230 [2022-11-18 18:34:35,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:35,431 INFO L225 Difference]: With dead ends: 35411 [2022-11-18 18:34:35,431 INFO L226 Difference]: Without dead ends: 20255 [2022-11-18 18:34:35,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2022-11-18 18:34:35,493 INFO L413 NwaCegarLoop]: 1381 mSDtfsCounter, 3928 mSDsluCounter, 6230 mSDsCounter, 0 mSdLazyCounter, 8928 mSolverCounterSat, 2534 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4020 SdHoareTripleChecker+Valid, 7611 SdHoareTripleChecker+Invalid, 11462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2534 IncrementalHoareTripleChecker+Valid, 8928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:35,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4020 Valid, 7611 Invalid, 11462 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2534 Valid, 8928 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-11-18 18:34:35,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20255 states. [2022-11-18 18:34:37,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20255 to 13171. [2022-11-18 18:34:37,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13171 states, 8884 states have (on average 1.3103331832507878) internal successors, (11641), 9295 states have internal predecessors, (11641), 3317 states have call successors, (3317), 834 states have call predecessors, (3317), 969 states have return successors, (3878), 3281 states have call predecessors, (3878), 3316 states have call successors, (3878) [2022-11-18 18:34:37,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13171 states to 13171 states and 18836 transitions. [2022-11-18 18:34:37,269 INFO L78 Accepts]: Start accepts. Automaton has 13171 states and 18836 transitions. Word has length 230 [2022-11-18 18:34:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:37,270 INFO L495 AbstractCegarLoop]: Abstraction has 13171 states and 18836 transitions. [2022-11-18 18:34:37,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.5) internal successors, (135), 5 states have internal predecessors, (135), 3 states have call successors, (20), 8 states have call predecessors, (20), 1 states have return successors, (19), 1 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-18 18:34:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 13171 states and 18836 transitions. [2022-11-18 18:34:37,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-18 18:34:37,315 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:37,315 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:37,315 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:34:37,316 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:37,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:37,316 INFO L85 PathProgramCache]: Analyzing trace with hash 306884419, now seen corresponding path program 1 times [2022-11-18 18:34:37,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:37,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131652890] [2022-11-18 18:34:37,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:37,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:37,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:37,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:34:37,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:34:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:34:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:34:37,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:37,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 18:34:37,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:34:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:34:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 18:34:37,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:34:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:34:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-18 18:34:37,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:37,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-18 18:34:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-18 18:34:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-18 18:34:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 18:34:37,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-18 18:34:37,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-18 18:34:37,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 18:34:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-18 18:34:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 18:34:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-18 18:34:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:37,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:34:37,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-11-18 18:34:37,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-18 18:34:37,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-18 18:34:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-18 18:34:38,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:38,109 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-18 18:34:38,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:38,109 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131652890] [2022-11-18 18:34:38,109 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131652890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:38,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:34:38,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 18:34:38,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833112331] [2022-11-18 18:34:38,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:38,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:34:38,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:38,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:34:38,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:34:38,111 INFO L87 Difference]: Start difference. First operand 13171 states and 18836 transitions. Second operand has 10 states, 9 states have (on average 16.333333333333332) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 18:34:44,966 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 18:34:52,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:34:52,659 INFO L93 Difference]: Finished difference Result 22819 states and 33296 transitions. [2022-11-18 18:34:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:34:52,661 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.333333333333332) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 286 [2022-11-18 18:34:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:34:52,706 INFO L225 Difference]: With dead ends: 22819 [2022-11-18 18:34:52,706 INFO L226 Difference]: Without dead ends: 9673 [2022-11-18 18:34:52,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-11-18 18:34:52,755 INFO L413 NwaCegarLoop]: 536 mSDtfsCounter, 2528 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 6297 mSolverCounterSat, 1684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2610 SdHoareTripleChecker+Valid, 2871 SdHoareTripleChecker+Invalid, 7981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1684 IncrementalHoareTripleChecker+Valid, 6297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-11-18 18:34:52,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2610 Valid, 2871 Invalid, 7981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1684 Valid, 6297 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-11-18 18:34:52,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9673 states. [2022-11-18 18:34:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9673 to 6910. [2022-11-18 18:34:53,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6910 states, 4677 states have (on average 1.308531109685696) internal successors, (6120), 4883 states have internal predecessors, (6120), 1716 states have call successors, (1716), 449 states have call predecessors, (1716), 516 states have return successors, (1996), 1698 states have call predecessors, (1996), 1715 states have call successors, (1996) [2022-11-18 18:34:53,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6910 states to 6910 states and 9832 transitions. [2022-11-18 18:34:53,919 INFO L78 Accepts]: Start accepts. Automaton has 6910 states and 9832 transitions. Word has length 286 [2022-11-18 18:34:53,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:34:53,919 INFO L495 AbstractCegarLoop]: Abstraction has 6910 states and 9832 transitions. [2022-11-18 18:34:53,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.333333333333332) internal successors, (147), 3 states have internal predecessors, (147), 3 states have call successors, (34), 9 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 18:34:53,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6910 states and 9832 transitions. [2022-11-18 18:34:53,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2022-11-18 18:34:53,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:34:53,950 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:34:53,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:34:53,950 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:34:53,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:34:53,951 INFO L85 PathProgramCache]: Analyzing trace with hash 93267333, now seen corresponding path program 1 times [2022-11-18 18:34:53,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:34:53,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498335406] [2022-11-18 18:34:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:34:53,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:34:54,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:34:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:54,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:54,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:34:54,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:54,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:34:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:54,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:34:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:34:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 18:34:54,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:34:54,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:34:54,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:34:54,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 18:34:54,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:34:54,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:34:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-18 18:34:54,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:54,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-18 18:34:54,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-18 18:34:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-18 18:34:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-11-18 18:34:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-18 18:34:54,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-18 18:34:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 18:34:54,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-18 18:34:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-18 18:34:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-11-18 18:34:54,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:34:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:34:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:34:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-11-18 18:34:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-18 18:34:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-18 18:34:54,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-18 18:34:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:34:54,824 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-18 18:34:54,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:34:54,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498335406] [2022-11-18 18:34:54,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498335406] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:34:54,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:34:54,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-18 18:34:54,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424676408] [2022-11-18 18:34:54,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:34:54,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 18:34:54,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:34:54,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 18:34:54,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-11-18 18:34:54,828 INFO L87 Difference]: Start difference. First operand 6910 states and 9832 transitions. Second operand has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 3 states have internal predecessors, (145), 4 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 18:35:14,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:14,016 INFO L93 Difference]: Finished difference Result 9676 states and 14489 transitions. [2022-11-18 18:35:14,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 18:35:14,017 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 3 states have internal predecessors, (145), 4 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) Word has length 286 [2022-11-18 18:35:14,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:14,060 INFO L225 Difference]: With dead ends: 9676 [2022-11-18 18:35:14,061 INFO L226 Difference]: Without dead ends: 9673 [2022-11-18 18:35:14,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2022-11-18 18:35:14,067 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 3700 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 7157 mSolverCounterSat, 3205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3783 SdHoareTripleChecker+Valid, 2226 SdHoareTripleChecker+Invalid, 10362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3205 IncrementalHoareTripleChecker+Valid, 7157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:14,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3783 Valid, 2226 Invalid, 10362 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3205 Valid, 7157 Invalid, 0 Unknown, 0 Unchecked, 16.8s Time] [2022-11-18 18:35:14,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9673 states. [2022-11-18 18:35:15,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9673 to 6910. [2022-11-18 18:35:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6910 states, 4677 states have (on average 1.308103485140047) internal successors, (6118), 4883 states have internal predecessors, (6118), 1716 states have call successors, (1716), 449 states have call predecessors, (1716), 516 states have return successors, (1996), 1698 states have call predecessors, (1996), 1715 states have call successors, (1996) [2022-11-18 18:35:15,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6910 states to 6910 states and 9830 transitions. [2022-11-18 18:35:15,225 INFO L78 Accepts]: Start accepts. Automaton has 6910 states and 9830 transitions. Word has length 286 [2022-11-18 18:35:15,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:15,226 INFO L495 AbstractCegarLoop]: Abstraction has 6910 states and 9830 transitions. [2022-11-18 18:35:15,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.11111111111111) internal successors, (145), 3 states have internal predecessors, (145), 4 states have call successors, (34), 9 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-18 18:35:15,226 INFO L276 IsEmpty]: Start isEmpty. Operand 6910 states and 9830 transitions. [2022-11-18 18:35:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2022-11-18 18:35:15,250 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:35:15,251 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:35:15,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:35:15,251 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 18:35:15,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:35:15,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1863337110, now seen corresponding path program 1 times [2022-11-18 18:35:15,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:35:15,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445492425] [2022-11-18 18:35:15,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:35:15,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:35:15,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 18:35:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-18 18:35:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 18:35:16,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:16,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-18 18:35:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-11-18 18:35:16,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:16,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-11-18 18:35:16,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-11-18 18:35:16,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 18:35:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-18 18:35:16,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-18 18:35:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-18 18:35:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 18:35:16,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-11-18 18:35:16,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:16,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-18 18:35:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-18 18:35:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-11-18 18:35:16,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-18 18:35:16,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-11-18 18:35:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:16,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-11-18 18:35:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-11-18 18:35:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-11-18 18:35:17,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-11-18 18:35:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-11-18 18:35:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 18:35:17,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 18:35:17,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-11-18 18:35:17,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-11-18 18:35:17,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-11-18 18:35:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-11-18 18:35:17,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-11-18 18:35:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:35:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2022-11-18 18:35:17,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:35:17,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445492425] [2022-11-18 18:35:17,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445492425] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:35:17,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:35:17,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-18 18:35:17,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193806249] [2022-11-18 18:35:17,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:35:17,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 18:35:17,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:35:17,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 18:35:17,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2022-11-18 18:35:17,222 INFO L87 Difference]: Start difference. First operand 6910 states and 9830 transitions. Second operand has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 7 states have internal predecessors, (146), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-18 18:35:37,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:35:37,911 INFO L93 Difference]: Finished difference Result 13733 states and 20685 transitions. [2022-11-18 18:35:37,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-18 18:35:37,912 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 7 states have internal predecessors, (146), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 291 [2022-11-18 18:35:37,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:35:37,914 INFO L225 Difference]: With dead ends: 13733 [2022-11-18 18:35:37,914 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:35:37,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=297, Unknown=0, NotChecked=0, Total=380 [2022-11-18 18:35:37,951 INFO L413 NwaCegarLoop]: 1306 mSDtfsCounter, 2852 mSDsluCounter, 9243 mSDsCounter, 0 mSdLazyCounter, 12572 mSolverCounterSat, 1343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3016 SdHoareTripleChecker+Valid, 10549 SdHoareTripleChecker+Invalid, 13915 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1343 IncrementalHoareTripleChecker+Valid, 12572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-11-18 18:35:37,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3016 Valid, 10549 Invalid, 13915 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1343 Valid, 12572 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2022-11-18 18:35:37,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:35:37,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:35:37,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:35:37,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:35:37,955 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 291 [2022-11-18 18:35:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:35:37,956 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:35:37,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 11.23076923076923) internal successors, (146), 7 states have internal predecessors, (146), 3 states have call successors, (35), 8 states have call predecessors, (35), 2 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-18 18:35:37,956 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:35:37,956 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:35:37,959 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 18:35:37,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:35:37,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 18:38:28,913 WARN L233 SmtUtils]: Spent 2.79m on a formula simplification. DAG size of input: 121 DAG size of output: 118 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 18:42:01,998 WARN L233 SmtUtils]: Spent 3.55m on a formula simplification. DAG size of input: 121 DAG size of output: 118 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 18:45:18,834 WARN L233 SmtUtils]: Spent 3.25m on a formula simplification. DAG size of input: 124 DAG size of output: 121 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)