./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--class--cdc-wdm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ --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 4de76b02991c4f8780142b48e1370b1ba073d7148b74e77b2c83d6f21359d59e --- 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-dbf71c6-m [2022-10-17 11:00:09,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:00:09,848 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:00:09,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:00:09,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:00:09,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:00:09,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:00:09,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:00:09,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:00:09,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:00:09,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:00:09,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:00:09,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:00:09,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:00:09,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:00:09,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:00:09,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:00:09,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:00:09,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:00:09,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:00:09,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:00:09,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:00:09,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:00:09,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:00:09,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:00:09,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:00:09,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:00:09,917 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:00:09,917 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:00:09,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:00:09,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:00:09,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:00:09,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:00:09,922 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:00:09,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:00:09,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:00:09,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:00:09,926 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:00:09,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:00:09,927 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:00:09,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:00:09,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:00:09,959 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:00:09,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:00:09,960 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:00:09,960 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:00:09,961 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:00:09,961 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:00:09,962 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:00:09,962 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:00:09,963 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:00:09,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:00:09,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:00:09,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:00:09,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:00:09,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:00:09,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:00:09,964 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:00:09,965 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:00:09,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:00:09,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:00:09,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:00:09,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:00:09,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:00:09,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:00:09,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:00:09,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:00:09,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:00:09,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:00:09,968 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:00:09,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:00:09,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:00:09,969 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_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de76b02991c4f8780142b48e1370b1ba073d7148b74e77b2c83d6f21359d59e [2022-10-17 11:00:10,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:00:10,272 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:00:10,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:00:10,277 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:00:10,278 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:00:10,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2022-10-17 11:00:10,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/data/b16376bc9/5aa976e230144ff0920a30ff36f444fd/FLAGf798409ba [2022-10-17 11:00:11,194 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:00:11,196 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2022-10-17 11:00:11,236 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/data/b16376bc9/5aa976e230144ff0920a30ff36f444fd/FLAGf798409ba [2022-10-17 11:00:11,666 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/data/b16376bc9/5aa976e230144ff0920a30ff36f444fd [2022-10-17 11:00:11,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:00:11,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:00:11,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:00:11,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:00:11,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:00:11,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:00:11" (1/1) ... [2022-10-17 11:00:11,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cebfc8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:11, skipping insertion in model container [2022-10-17 11:00:11,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:00:11" (1/1) ... [2022-10-17 11:00:11,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:00:11,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:00:13,477 WARN L230 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_c867684a-89b9-4b79-9ae7-6e1782e0f87d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2022-10-17 11:00:13,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:00:13,732 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:00:14,193 WARN L230 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_c867684a-89b9-4b79-9ae7-6e1782e0f87d/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i[185536,185549] [2022-10-17 11:00:14,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:00:14,341 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:00:14,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14 WrapperNode [2022-10-17 11:00:14,343 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:00:14,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:00:14,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:00:14,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:00:14,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,462 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,637 INFO L138 Inliner]: procedures = 282, calls = 1375, calls flagged for inlining = 101, calls inlined = 84, statements flattened = 2589 [2022-10-17 11:00:14,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:00:14,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:00:14,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:00:14,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:00:14,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,688 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,688 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,863 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:00:14,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:00:14,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:00:14,914 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:00:14,915 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (1/1) ... [2022-10-17 11:00:14,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:00:14,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:00:14,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:00:14,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c867684a-89b9-4b79-9ae7-6e1782e0f87d/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:00:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-10-17 11:00:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-10-17 11:00:14,999 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2022-10-17 11:00:14,999 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2022-10-17 11:00:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 11:00:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 11:00:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 11:00:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 11:00:15,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wdm_mutex [2022-10-17 11:00:15,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wdm_mutex [2022-10-17 11:00:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure recover_from_urb_loss [2022-10-17 11:00:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure recover_from_urb_loss [2022-10-17 11:00:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-10-17 11:00:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-10-17 11:00:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 11:00:15,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 11:00:15,001 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-10-17 11:00:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-10-17 11:00:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-10-17 11:00:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-10-17 11:00:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-10-17 11:00:15,002 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-10-17 11:00:15,002 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_create [2022-10-17 11:00:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_create [2022-10-17 11:00:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 11:00:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 11:00:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 11:00:15,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 11:00:15,003 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_poll [2022-10-17 11:00:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_poll [2022-10-17 11:00:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-17 11:00:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-17 11:00:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 11:00:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 11:00:15,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 11:00:15,004 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 11:00:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 11:00:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 11:00:15,005 INFO L130 BoogieDeclarations]: Found specification of procedure clear_wdm_read_flag [2022-10-17 11:00:15,005 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_wdm_read_flag [2022-10-17 11:00:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_cancel_work_sync_39 [2022-10-17 11:00:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_cancel_work_sync_39 [2022-10-17 11:00:15,006 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_write [2022-10-17 11:00:15,006 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_write [2022-10-17 11:00:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:00:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 11:00:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 11:00:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_ioctl [2022-10-17 11:00:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_ioctl [2022-10-17 11:00:15,007 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_disconnect [2022-10-17 11:00:15,007 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_disconnect [2022-10-17 11:00:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:00:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_rlock_of_wdm_device [2022-10-17 11:00:15,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_rlock_of_wdm_device [2022-10-17 11:00:15,008 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 11:00:15,009 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 11:00:15,009 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-10-17 11:00:15,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-10-17 11:00:15,010 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_rxwork [2022-10-17 11:00:15,011 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_rxwork [2022-10-17 11:00:15,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:00:15,011 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2022-10-17 11:00:15,011 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2022-10-17 11:00:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:00:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-10-17 11:00:15,012 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-10-17 11:00:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-10-17 11:00:15,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-10-17 11:00:15,012 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-10-17 11:00:15,012 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-10-17 11:00:15,013 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-10-17 11:00:15,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-10-17 11:00:15,014 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-10-17 11:00:15,014 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-10-17 11:00:15,014 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 11:00:15,014 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 11:00:15,014 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 11:00:15,014 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 11:00:15,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wdm_mutex [2022-10-17 11:00:15,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wdm_mutex [2022-10-17 11:00:15,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_wlock_of_wdm_device [2022-10-17 11:00:15,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_wlock_of_wdm_device [2022-10-17 11:00:15,015 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-17 11:00:15,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-17 11:00:15,015 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-17 11:00:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-17 11:00:15,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-10-17 11:00:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-10-17 11:00:15,016 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_flush [2022-10-17 11:00:15,016 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_flush [2022-10-17 11:00:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_wlock_of_wdm_device [2022-10-17 11:00:15,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_wlock_of_wdm_device [2022-10-17 11:00:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 11:00:15,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2022-10-17 11:00:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 11:00:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-10-17 11:00:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-10-17 11:00:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:00:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 11:00:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 11:00:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-17 11:00:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-17 11:00:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-17 11:00:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-17 11:00:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure kill_urbs [2022-10-17 11:00:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure kill_urbs [2022-10-17 11:00:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait_event [2022-10-17 11:00:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait_event [2022-10-17 11:00:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 11:00:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 11:00:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:00:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-17 11:00:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-17 11:00:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-10-17 11:00:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-10-17 11:00:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 11:00:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 11:00:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 11:00:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 11:00:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_resume [2022-10-17 11:00:15,027 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_resume [2022-10-17 11:00:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:00:15,027 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-10-17 11:00:15,028 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-10-17 11:00:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 11:00:15,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 11:00:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:00:15,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-17 11:00:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-17 11:00:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:00:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-10-17 11:00:15,037 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-10-17 11:00:15,037 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-17 11:00:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-17 11:00:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 11:00:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 11:00:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 11:00:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 11:00:15,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_rlock_of_wdm_device [2022-10-17 11:00:15,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_rlock_of_wdm_device [2022-10-17 11:00:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-10-17 11:00:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-10-17 11:00:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure wdm_find_device [2022-10-17 11:00:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure wdm_find_device [2022-10-17 11:00:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-17 11:00:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-17 11:00:15,039 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-17 11:00:15,039 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-17 11:00:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:00:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-17 11:00:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-17 11:00:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-10-17 11:00:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-10-17 11:00:15,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:00:15,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:00:15,726 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:00:15,730 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:00:16,340 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 11:00:20,565 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:00:20,582 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:00:20,582 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:00:20,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:00:20 BoogieIcfgContainer [2022-10-17 11:00:20,587 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:00:20,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:00:20,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:00:20,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:00:20,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:00:11" (1/3) ... [2022-10-17 11:00:20,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483a7c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:00:20, skipping insertion in model container [2022-10-17 11:00:20,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:00:14" (2/3) ... [2022-10-17 11:00:20,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483a7c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:00:20, skipping insertion in model container [2022-10-17 11:00:20,595 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:00:20" (3/3) ... [2022-10-17 11:00:20,596 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--class--cdc-wdm.ko-entry_point.cil.out.i [2022-10-17 11:00:20,617 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:00:20,617 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:00:20,702 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:00:20,709 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;@1be477d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:00:20,710 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:00:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 1069 states, 696 states have (on average 1.3132183908045978) internal successors, (914), 729 states have internal predecessors, (914), 301 states have call successors, (301), 71 states have call predecessors, (301), 70 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) [2022-10-17 11:00:20,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-10-17 11:00:20,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:00:20,740 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:00:20,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:00:20,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:00:20,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1610922865, now seen corresponding path program 1 times [2022-10-17 11:00:20,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:00:20,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937287551] [2022-10-17 11:00:20,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:00:20,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:00:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:00:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:21,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:00:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 11:00:21,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:21,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:00:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:21,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:21,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 11:00:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:00:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:21,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:00:21,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:21,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 11:00:21,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 11:00:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-17 11:00:21,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:21,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-17 11:00:21,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:22,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-17 11:00:22,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:22,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 11:00:22,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:22,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-17 11:00:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:22,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-17 11:00:22,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:22,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-17 11:00:22,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:22,107 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-10-17 11:00:22,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:00:22,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937287551] [2022-10-17 11:00:22,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937287551] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:00:22,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:00:22,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 11:00:22,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207073435] [2022-10-17 11:00:22,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:00:22,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 11:00:22,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:00:22,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 11:00:22,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 11:00:22,164 INFO L87 Difference]: Start difference. First operand has 1069 states, 696 states have (on average 1.3132183908045978) internal successors, (914), 729 states have internal predecessors, (914), 301 states have call successors, (301), 71 states have call predecessors, (301), 70 states have return successors, (296), 295 states have call predecessors, (296), 296 states have call successors, (296) Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-17 11:00:27,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:00:27,322 INFO L93 Difference]: Finished difference Result 2168 states and 3132 transitions. [2022-10-17 11:00:27,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 11:00:27,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 192 [2022-10-17 11:00:27,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:00:27,355 INFO L225 Difference]: With dead ends: 2168 [2022-10-17 11:00:27,355 INFO L226 Difference]: Without dead ends: 1092 [2022-10-17 11:00:27,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:00:27,374 INFO L413 NwaCegarLoop]: 1374 mSDtfsCounter, 593 mSDsluCounter, 1558 mSDsCounter, 0 mSdLazyCounter, 1095 mSolverCounterSat, 690 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 637 SdHoareTripleChecker+Valid, 2932 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 690 IncrementalHoareTripleChecker+Valid, 1095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-10-17 11:00:27,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [637 Valid, 2932 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [690 Valid, 1095 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2022-10-17 11:00:27,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2022-10-17 11:00:27,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1057. [2022-10-17 11:00:27,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1057 states, 691 states have (on average 1.2952243125904486) internal successors, (895), 717 states have internal predecessors, (895), 296 states have call successors, (296), 70 states have call predecessors, (296), 69 states have return successors, (282), 281 states have call predecessors, (282), 282 states have call successors, (282) [2022-10-17 11:00:27,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1473 transitions. [2022-10-17 11:00:27,534 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1473 transitions. Word has length 192 [2022-10-17 11:00:27,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:00:27,535 INFO L495 AbstractCegarLoop]: Abstraction has 1057 states and 1473 transitions. [2022-10-17 11:00:27,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 2 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-10-17 11:00:27,535 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1473 transitions. [2022-10-17 11:00:27,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2022-10-17 11:00:27,540 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:00:27,540 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:00:27,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:00:27,541 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:00:27,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:00:27,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1041966207, now seen corresponding path program 1 times [2022-10-17 11:00:27,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:00:27,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129485696] [2022-10-17 11:00:27,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:00:27,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:00:27,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:00:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:28,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:00:28,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:28,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 11:00:28,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:28,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:00:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:28,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 11:00:28,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:28,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:00:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:28,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:00:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:28,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 11:00:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 11:00:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-17 11:00:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-17 11:00:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-17 11:00:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 11:00:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-17 11:00:28,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-17 11:00:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-17 11:00:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:28,396 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-10-17 11:00:28,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:00:28,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129485696] [2022-10-17 11:00:28,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129485696] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:00:28,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:00:28,398 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:00:28,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074294238] [2022-10-17 11:00:28,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:00:28,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:00:28,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:00:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:00:28,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:00:28,401 INFO L87 Difference]: Start difference. First operand 1057 states and 1473 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-17 11:00:33,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:00:33,832 INFO L93 Difference]: Finished difference Result 3127 states and 4379 transitions. [2022-10-17 11:00:33,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:00:33,833 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 192 [2022-10-17 11:00:33,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:00:33,858 INFO L225 Difference]: With dead ends: 3127 [2022-10-17 11:00:33,873 INFO L226 Difference]: Without dead ends: 2111 [2022-10-17 11:00:33,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:00:33,888 INFO L413 NwaCegarLoop]: 1558 mSDtfsCounter, 2862 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 2277 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3078 SdHoareTripleChecker+Valid, 2979 SdHoareTripleChecker+Invalid, 3711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2277 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:00:33,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3078 Valid, 2979 Invalid, 3711 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2277 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-10-17 11:00:33,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2111 states. [2022-10-17 11:00:34,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2111 to 2035. [2022-10-17 11:00:34,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2035 states, 1338 states have (on average 1.29745889387145) internal successors, (1736), 1377 states have internal predecessors, (1736), 559 states have call successors, (559), 138 states have call predecessors, (559), 137 states have return successors, (545), 543 states have call predecessors, (545), 545 states have call successors, (545) [2022-10-17 11:00:34,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2035 states to 2035 states and 2840 transitions. [2022-10-17 11:00:34,085 INFO L78 Accepts]: Start accepts. Automaton has 2035 states and 2840 transitions. Word has length 192 [2022-10-17 11:00:34,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:00:34,088 INFO L495 AbstractCegarLoop]: Abstraction has 2035 states and 2840 transitions. [2022-10-17 11:00:34,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (19), 5 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-10-17 11:00:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2035 states and 2840 transitions. [2022-10-17 11:00:34,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-10-17 11:00:34,100 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:00:34,101 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:00:34,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 11:00:34,102 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:00:34,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:00:34,102 INFO L85 PathProgramCache]: Analyzing trace with hash -752510600, now seen corresponding path program 1 times [2022-10-17 11:00:34,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:00:34,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025222207] [2022-10-17 11:00:34,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:00:34,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:00:34,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:00:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:00:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:34,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 11:00:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:00:34,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:34,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 11:00:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:34,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:00:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:34,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:00:34,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:00:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:00:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-10-17 11:00:34,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-17 11:00:34,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-10-17 11:00:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2022-10-17 11:00:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-10-17 11:00:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-17 11:00:34,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-10-17 11:00:34,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-10-17 11:00:34,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-17 11:00:34,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-10-17 11:00:34,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:00:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2022-10-17 11:00:34,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:00:34,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025222207] [2022-10-17 11:00:34,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025222207] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:00:34,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:00:34,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:00:34,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163363471] [2022-10-17 11:00:34,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:00:34,789 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:00:34,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:00:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:00:34,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:00:34,790 INFO L87 Difference]: Start difference. First operand 2035 states and 2840 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-17 11:00:39,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:00:39,784 INFO L93 Difference]: Finished difference Result 5219 states and 7224 transitions. [2022-10-17 11:00:39,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:00:39,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 195 [2022-10-17 11:00:39,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:00:39,815 INFO L225 Difference]: With dead ends: 5219 [2022-10-17 11:00:39,815 INFO L226 Difference]: Without dead ends: 3225 [2022-10-17 11:00:39,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-10-17 11:00:39,827 INFO L413 NwaCegarLoop]: 1453 mSDtfsCounter, 2062 mSDsluCounter, 1357 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 1795 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2177 SdHoareTripleChecker+Valid, 2810 SdHoareTripleChecker+Invalid, 3103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1795 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-10-17 11:00:39,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2177 Valid, 2810 Invalid, 3103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1795 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-10-17 11:00:39,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3225 states. [2022-10-17 11:00:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3225 to 3099. [2022-10-17 11:00:40,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3099 states, 2041 states have (on average 1.2836844683978441) internal successors, (2620), 2086 states have internal predecessors, (2620), 818 states have call successors, (818), 240 states have call predecessors, (818), 239 states have return successors, (804), 800 states have call predecessors, (804), 804 states have call successors, (804) [2022-10-17 11:00:40,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3099 states to 3099 states and 4242 transitions. [2022-10-17 11:00:40,033 INFO L78 Accepts]: Start accepts. Automaton has 3099 states and 4242 transitions. Word has length 195 [2022-10-17 11:00:40,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:00:40,035 INFO L495 AbstractCegarLoop]: Abstraction has 3099 states and 4242 transitions. [2022-10-17 11:00:40,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-10-17 11:00:40,036 INFO L276 IsEmpty]: Start isEmpty. Operand 3099 states and 4242 transitions. [2022-10-17 11:00:40,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-10-17 11:00:40,041 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:00:40,041 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:00:40,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 11:00:40,042 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:00:40,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:00:40,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1672899466, now seen corresponding path program 1 times [2022-10-17 11:00:40,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:00:40,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265023555] [2022-10-17 11:00:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:00:40,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:00:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat