./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/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_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/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_228dfa7d-615c-4f28-9ab8-b23c0120a85b/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 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 --- 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 20:03:55,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:03:55,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:03:55,771 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:03:55,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:03:55,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:03:55,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:03:55,789 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:03:55,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:03:55,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:03:55,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:03:55,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:03:55,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:03:55,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:03:55,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:03:55,809 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:03:55,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:03:55,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:03:55,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:03:55,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:03:55,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:03:55,828 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:03:55,832 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:03:55,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:03:55,845 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:03:55,845 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:03:55,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:03:55,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:03:55,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:03:55,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:03:55,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:03:55,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:03:55,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:03:55,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:03:55,863 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:03:55,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:03:55,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:03:55,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:03:55,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:03:55,865 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:03:55,866 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:03:55,867 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:03:55,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:03:55,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:03:55,912 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:03:55,912 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:03:55,913 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:03:55,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:03:55,914 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:03:55,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:03:55,915 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:03:55,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:03:55,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:03:55,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:03:55,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:03:55,917 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:03:55,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:03:55,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:03:55,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:03:55,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:03:55,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:03:55,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:03:55,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:03:55,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:03:55,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:03:55,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:03:55,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:03:55,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:03:55,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:03:55,922 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:03:55,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:03:55,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:03:55,923 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_228dfa7d-615c-4f28-9ab8-b23c0120a85b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d3a41c14974620b49988c1780c7d5a75f04674e564d23c865943e8c9fe2089 [2022-11-18 20:03:56,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:03:56,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:03:56,360 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:03:56,362 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:03:56,364 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:03:56,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-18 20:03:56,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/data/11da3e46b/2cc72e5e9acd4daea0d7170f8cb1ec76/FLAGf2d07095f [2022-11-18 20:03:57,542 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:03:57,542 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-18 20:03:57,606 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/data/11da3e46b/2cc72e5e9acd4daea0d7170f8cb1ec76/FLAGf2d07095f [2022-11-18 20:03:57,754 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/data/11da3e46b/2cc72e5e9acd4daea0d7170f8cb1ec76 [2022-11-18 20:03:57,756 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:03:57,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:03:57,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:03:57,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:03:57,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:03:57,764 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:03:57" (1/1) ... [2022-11-18 20:03:57,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557408f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:03:57, skipping insertion in model container [2022-11-18 20:03:57,766 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:03:57" (1/1) ... [2022-11-18 20:03:57,773 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:03:57,950 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:04:03,441 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_228dfa7d-615c-4f28-9ab8-b23c0120a85b/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-18 20:04:03,445 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_228dfa7d-615c-4f28-9ab8-b23c0120a85b/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-18 20:04:03,480 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:03,578 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:04:04,148 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_228dfa7d-615c-4f28-9ab8-b23c0120a85b/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519506,519519] [2022-11-18 20:04:04,149 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_228dfa7d-615c-4f28-9ab8-b23c0120a85b/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i[519651,519664] [2022-11-18 20:04:04,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:04,551 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:04:04,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04 WrapperNode [2022-11-18 20:04:04,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:04,553 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:04,553 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:04:04,553 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:04:04,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:04,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,192 INFO L138 Inliner]: procedures = 574, calls = 6348, calls flagged for inlining = 279, calls inlined = 246, statements flattened = 12449 [2022-11-18 20:04:05,193 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:05,194 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:04:05,194 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:04:05,194 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:04:05,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,800 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:04:05,925 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:04:05,925 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:04:05,926 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:04:05,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (1/1) ... [2022-11-18 20:04:05,935 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:05,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:04:05,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:04:05,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_228dfa7d-615c-4f28-9ab8-b23c0120a85b/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:04:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-18 20:04:06,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-18 20:04:06,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 20:04:06,018 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 20:04:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-18 20:04:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-18 20:04:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_vfta [2022-11-18 20:04:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_vfta [2022-11-18 20:04:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:04:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:04:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_standby_eeprom [2022-11-18 20:04:06,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_standby_eeprom [2022-11-18 20:04:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-18 20:04:06,020 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-18 20:04:06,020 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 20:04:06,021 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 20:04:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-18 20:04:06,021 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-18 20:04:06,021 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-18 20:04:06,021 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-18 20:04:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_alloc_rx_buffers [2022-11-18 20:04:06,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_alloc_rx_buffers [2022-11-18 20:04:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure mac_addr_valid [2022-11-18 20:04:06,022 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_addr_valid [2022-11-18 20:04:06,022 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_vlan_rx_add_vid [2022-11-18 20:04:06,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_vlan_rx_add_vid [2022-11-18 20:04:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_tx_resources [2022-11-18 20:04:06,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_tx_resources [2022-11-18 20:04:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-18 20:04:06,023 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-18 20:04:06,023 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_multi [2022-11-18 20:04:06,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_multi [2022-11-18 20:04:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_rar_set [2022-11-18 20:04:06,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_rar_set [2022-11-18 20:04:06,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-18 20:04:06,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-18 20:04:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-18 20:04:06,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-18 20:04:06,025 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-18 20:04:06,026 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-18 20:04:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-18 20:04:06,026 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-18 20:04:06,026 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_io_resume [2022-11-18 20:04:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_io_resume [2022-11-18 20:04:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-18 20:04:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-18 20:04:06,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 20:04:06,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 20:04:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:04:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-18 20:04:06,028 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-18 20:04:06,028 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_eeprom_checksum [2022-11-18 20:04:06,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_eeprom_checksum [2022-11-18 20:04:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-18 20:04:06,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-18 20:04:06,029 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_netpoll [2022-11-18 20:04:06,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_netpoll [2022-11-18 20:04:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-18 20:04:06,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-18 20:04:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 20:04:06,030 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_raise_clock [2022-11-18 20:04:06,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_raise_clock [2022-11-18 20:04:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_eeprom [2022-11-18 20:04:06,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_eeprom [2022-11-18 20:04:06,031 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 20:04:06,032 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 20:04:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_identify_xpak_vendor [2022-11-18 20:04:06,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_identify_xpak_vendor [2022-11-18 20:04:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:04:06,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-18 20:04:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-18 20:04:06,033 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_mac_reset [2022-11-18 20:04:06,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_mac_reset [2022-11-18 20:04:06,033 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_eeprom [2022-11-18 20:04:06,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_eeprom [2022-11-18 20:04:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:04:06,034 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_free_rx_resources [2022-11-18 20:04:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_free_rx_resources [2022-11-18 20:04:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 20:04:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 20:04:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-18 20:04:06,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-18 20:04:06,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 20:04:06,036 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 20:04:06,036 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-18 20:04:06,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-18 20:04:06,036 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-18 20:04:06,036 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-18 20:04:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-18 20:04:06,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-18 20:04:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-18 20:04:06,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-18 20:04:06,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-18 20:04:06,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-18 20:04:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_regs_len [2022-11-18 20:04:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_regs_len [2022-11-18 20:04:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-18 20:04:06,038 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-18 20:04:06,038 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-18 20:04:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-18 20:04:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_read_phy_reg [2022-11-18 20:04:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_read_phy_reg [2022-11-18 20:04:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_for_link [2022-11-18 20:04:06,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_for_link [2022-11-18 20:04:06,039 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_validate_option [2022-11-18 20:04:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_validate_option [2022-11-18 20:04:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:04:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-18 20:04:06,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-18 20:04:06,040 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-18 20:04:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-18 20:04:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:04:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-18 20:04:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-18 20:04:06,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-18 20:04:06,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-18 20:04:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-18 20:04:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-18 20:04:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:04:06,042 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:04:06,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:04:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_lower_clock [2022-11-18 20:04:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_lower_clock [2022-11-18 20:04:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_reset [2022-11-18 20:04:06,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_reset [2022-11-18 20:04:06,043 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:04:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-18 20:04:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-18 20:04:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-18 20:04:06,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-18 20:04:06,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-18 20:04:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_remove [2022-11-18 20:04:06,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_remove [2022-11-18 20:04:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-18 20:04:06,045 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-18 20:04:06,045 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_len [2022-11-18 20:04:06,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_len [2022-11-18 20:04:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_up [2022-11-18 20:04:06,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_up [2022-11-18 20:04:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_irq_enable [2022-11-18 20:04:06,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_irq_enable [2022-11-18 20:04:06,046 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-18 20:04:06,047 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-18 20:04:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 20:04:06,047 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 20:04:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-18 20:04:06,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-18 20:04:06,047 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_tx_resources [2022-11-18 20:04:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_tx_resources [2022-11-18 20:04:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_maybe_stop_tx [2022-11-18 20:04:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_maybe_stop_tx [2022-11-18 20:04:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_intr [2022-11-18 20:04:06,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_intr [2022-11-18 20:04:06,048 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-18 20:04:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-18 20:04:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-18 20:04:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-18 20:04:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_open [2022-11-18 20:04:06,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_open [2022-11-18 20:04:06,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:04:06,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:04:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-18 20:04:06,050 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-18 20:04:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-18 20:04:06,050 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-18 20:04:06,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 20:04:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:04:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 20:04:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 20:04:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 20:04:06,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-18 20:04:06,051 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-18 20:04:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-18 20:04:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-18 20:04:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-18 20:04:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_update_stats [2022-11-18 20:04:06,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_update_stats [2022-11-18 20:04:06,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-18 20:04:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-18 20:04:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_check_and_get_eeprom_data [2022-11-18 20:04:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_check_and_get_eeprom_data [2022-11-18 20:04:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-18 20:04:06,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-18 20:04:06,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:04:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:04:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-18 20:04:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-18 20:04:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-18 20:04:06,054 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-18 20:04:06,054 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_close [2022-11-18 20:04:06,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_close [2022-11-18 20:04:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-18 20:04:06,055 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-18 20:04:06,055 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-18 20:04:06,055 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-18 20:04:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-18 20:04:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-18 20:04:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-18 20:04:06,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-18 20:04:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:04:06,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-18 20:04:06,057 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-18 20:04:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-18 20:04:06,057 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-18 20:04:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:04:06,057 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-18 20:04:06,057 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-18 20:04:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:04:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-18 20:04:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-18 20:04:06,058 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-18 20:04:06,058 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-18 20:04:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-18 20:04:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-18 20:04:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-18 20:04:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-18 20:04:06,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-18 20:04:06,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-18 20:04:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_link_reset [2022-11-18 20:04:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_link_reset [2022-11-18 20:04:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_set_speed_duplex [2022-11-18 20:04:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_set_speed_duplex [2022-11-18 20:04:06,060 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-18 20:04:06,060 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-18 20:04:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-18 20:04:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-18 20:04:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-18 20:04:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-18 20:04:06,061 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-18 20:04:06,061 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-18 20:04:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-18 20:04:06,062 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-18 20:04:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-18 20:04:06,062 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-18 20:04:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_unmap_and_free_tx_resource [2022-11-18 20:04:06,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_unmap_and_free_tx_resource [2022-11-18 20:04:06,062 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-18 20:04:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-18 20:04:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 20:04:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 20:04:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:04:06,063 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_eeprom [2022-11-18 20:04:06,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_eeprom [2022-11-18 20:04:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:04:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:04:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_write_phy_reg [2022-11-18 20:04:06,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_write_phy_reg [2022-11-18 20:04:06,064 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-18 20:04:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-18 20:04:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_ee_mac_addr [2022-11-18 20:04:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_ee_mac_addr [2022-11-18 20:04:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-18 20:04:06,065 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-18 20:04:06,065 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-18 20:04:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-18 20:04:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_tx_ring [2022-11-18 20:04:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_tx_ring [2022-11-18 20:04:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2022-11-18 20:04:06,066 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2022-11-18 20:04:06,066 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-18 20:04:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-18 20:04:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_clean_rx_ring [2022-11-18 20:04:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_clean_rx_ring [2022-11-18 20:04:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_shift_out_bits [2022-11-18 20:04:06,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_shift_out_bits [2022-11-18 20:04:06,067 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_down [2022-11-18 20:04:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_down [2022-11-18 20:04:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_tx_timeout [2022-11-18 20:04:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_tx_timeout [2022-11-18 20:04:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_setup_rx_resources [2022-11-18 20:04:06,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_setup_rx_resources [2022-11-18 20:04:06,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-18 20:04:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-18 20:04:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-18 20:04:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-18 20:04:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 20:04:06,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-18 20:04:06,069 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_msi [2022-11-18 20:04:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_msi [2022-11-18 20:04:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-18 20:04:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-18 20:04:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:04:06,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-18 20:04:06,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-18 20:04:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-18 20:04:06,071 INFO L130 BoogieDeclarations]: Found specification of procedure ixgb_get_eeprom_data [2022-11-18 20:04:06,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ixgb_get_eeprom_data [2022-11-18 20:04:07,597 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:04:07,616 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:04:08,034 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:04:38,405 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:04:38,447 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:04:38,447 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 20:04:38,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:38 BoogieIcfgContainer [2022-11-18 20:04:38,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:04:38,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:04:38,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:04:38,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:04:38,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:03:57" (1/3) ... [2022-11-18 20:04:38,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a462f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:38, skipping insertion in model container [2022-11-18 20:04:38,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:04" (2/3) ... [2022-11-18 20:04:38,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25a462f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:38, skipping insertion in model container [2022-11-18 20:04:38,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:38" (3/3) ... [2022-11-18 20:04:38,471 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-intel-ixgb-ixgb.cil.i [2022-11-18 20:04:38,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:04:38,494 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-18 20:04:38,636 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:04:38,647 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;@5c046c6d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:04:38,648 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-18 20:04:38,663 INFO L276 IsEmpty]: Start isEmpty. Operand has 3228 states, 2200 states have (on average 1.2913636363636363) internal successors, (2841), 2244 states have internal predecessors, (2841), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) [2022-11-18 20:04:38,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2022-11-18 20:04:38,702 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:38,703 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:04:38,704 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:38,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:38,709 INFO L85 PathProgramCache]: Analyzing trace with hash 238061651, now seen corresponding path program 1 times [2022-11-18 20:04:38,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:38,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109648321] [2022-11-18 20:04:38,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:38,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:04:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:04:40,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:04:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:40,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:04:40,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:04:40,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:40,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:04:40,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:04:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:04:40,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:04:40,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:04:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:04:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:40,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:04:40,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:04:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:04:40,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:04:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:04:40,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-18 20:04:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:40,477 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:04:40,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:40,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109648321] [2022-11-18 20:04:40,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109648321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:40,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:40,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 20:04:40,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207324485] [2022-11-18 20:04:40,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:40,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 20:04:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:40,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 20:04:40,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 20:04:40,528 INFO L87 Difference]: Start difference. First operand has 3228 states, 2200 states have (on average 1.2913636363636363) internal successors, (2841), 2244 states have internal predecessors, (2841), 891 states have call successors, (891), 135 states have call predecessors, (891), 134 states have return successors, (887), 874 states have call predecessors, (887), 887 states have call successors, (887) Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:04:53,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:04:53,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:04:53,253 INFO L93 Difference]: Finished difference Result 6580 states and 9574 transitions. [2022-11-18 20:04:53,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:04:53,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2022-11-18 20:04:53,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:04:53,322 INFO L225 Difference]: With dead ends: 6580 [2022-11-18 20:04:53,322 INFO L226 Difference]: Without dead ends: 3311 [2022-11-18 20:04:53,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:04:53,372 INFO L413 NwaCegarLoop]: 3271 mSDtfsCounter, 1259 mSDsluCounter, 4656 mSDsCounter, 0 mSdLazyCounter, 3768 mSolverCounterSat, 688 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1556 SdHoareTripleChecker+Valid, 7927 SdHoareTripleChecker+Invalid, 4457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 688 IncrementalHoareTripleChecker+Valid, 3768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:04:53,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1556 Valid, 7927 Invalid, 4457 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [688 Valid, 3768 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2022-11-18 20:04:53,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2022-11-18 20:04:53,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 3160. [2022-11-18 20:04:53,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2646651270207852) internal successors, (2738), 2206 states have internal predecessors, (2738), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:04:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4460 transitions. [2022-11-18 20:04:53,776 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4460 transitions. Word has length 166 [2022-11-18 20:04:53,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:04:53,782 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4460 transitions. [2022-11-18 20:04:53,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:04:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4460 transitions. [2022-11-18 20:04:53,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-11-18 20:04:53,801 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:53,802 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:04:53,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:04:53,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:53,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:53,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1395456257, now seen corresponding path program 1 times [2022-11-18 20:04:53,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:53,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385128677] [2022-11-18 20:04:53,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:53,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:54,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:04:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:54,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:04:54,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:04:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:04:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:04:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:55,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:04:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:04:55,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:55,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:04:55,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:04:55,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:04:55,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:04:55,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:04:55,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:04:55,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:04:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:04:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:04:55,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:04:55,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:04:55,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:04:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:55,342 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:04:55,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:55,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385128677] [2022-11-18 20:04:55,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385128677] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:55,347 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:55,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:04:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341884233] [2022-11-18 20:04:55,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:55,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:04:55,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:55,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:04:55,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:04:55,352 INFO L87 Difference]: Start difference. First operand 3160 states and 4460 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:05:09,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:10,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:10,142 INFO L93 Difference]: Finished difference Result 6455 states and 9169 transitions. [2022-11-18 20:05:10,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:05:10,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 167 [2022-11-18 20:05:10,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:10,179 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:05:10,179 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:05:10,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:10,203 INFO L413 NwaCegarLoop]: 3196 mSDtfsCounter, 4532 mSDsluCounter, 3858 mSDsCounter, 0 mSdLazyCounter, 4399 mSolverCounterSat, 1778 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5030 SdHoareTripleChecker+Valid, 7054 SdHoareTripleChecker+Invalid, 6178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1778 IncrementalHoareTripleChecker+Valid, 4399 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:10,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5030 Valid, 7054 Invalid, 6178 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1778 Valid, 4399 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-18 20:05:10,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:05:10,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:05:10,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.264203233256351) internal successors, (2737), 2206 states have internal predecessors, (2737), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:05:10,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4459 transitions. [2022-11-18 20:05:10,698 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4459 transitions. Word has length 167 [2022-11-18 20:05:10,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:10,700 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4459 transitions. [2022-11-18 20:05:10,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:05:10,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4459 transitions. [2022-11-18 20:05:10,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-11-18 20:05:10,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:10,708 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:10,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:05:10,708 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:10,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:10,709 INFO L85 PathProgramCache]: Analyzing trace with hash 871236296, now seen corresponding path program 1 times [2022-11-18 20:05:10,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:10,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337278926] [2022-11-18 20:05:10,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:10,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:05:12,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:05:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:05:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:12,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:05:12,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:12,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:05:12,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:12,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:05:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:05:12,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:05:12,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:12,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:05:12,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:05:12,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:05:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:05:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:05:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:05:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:12,532 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:05:12,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:12,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337278926] [2022-11-18 20:05:12,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337278926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:12,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:12,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:05:12,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418748165] [2022-11-18 20:05:12,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:12,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:12,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:12,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:12,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:12,535 INFO L87 Difference]: Start difference. First operand 3160 states and 4459 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:05:27,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:28,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:28,019 INFO L93 Difference]: Finished difference Result 6455 states and 9167 transitions. [2022-11-18 20:05:28,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:05:28,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 168 [2022-11-18 20:05:28,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:28,048 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:05:28,048 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:05:28,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:05:28,073 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 6706 mSDsluCounter, 3860 mSDsCounter, 0 mSdLazyCounter, 4398 mSolverCounterSat, 4781 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6706 SdHoareTripleChecker+Valid, 7057 SdHoareTripleChecker+Invalid, 9180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4781 IncrementalHoareTripleChecker+Valid, 4398 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:28,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6706 Valid, 7057 Invalid, 9180 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4781 Valid, 4398 Invalid, 1 Unknown, 0 Unchecked, 14.8s Time] [2022-11-18 20:05:28,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:05:28,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:05:28,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2637413394919168) internal successors, (2736), 2206 states have internal predecessors, (2736), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:05:28,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4458 transitions. [2022-11-18 20:05:28,338 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4458 transitions. Word has length 168 [2022-11-18 20:05:28,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:28,340 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4458 transitions. [2022-11-18 20:05:28,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 5 states have internal predecessors, (74), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:05:28,341 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4458 transitions. [2022-11-18 20:05:28,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-11-18 20:05:28,345 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:28,345 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:28,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:05:28,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:28,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:28,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1914803293, now seen corresponding path program 1 times [2022-11-18 20:05:28,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:28,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894671643] [2022-11-18 20:05:28,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:28,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:05:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:05:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:05:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:29,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:05:29,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:29,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:05:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:29,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:05:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:05:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:05:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:05:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:05:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:05:29,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:05:29,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:05:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:05:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:05:29,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:29,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894671643] [2022-11-18 20:05:29,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894671643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:29,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:29,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:05:29,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536054788] [2022-11-18 20:05:29,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:29,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:29,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:29,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:29,991 INFO L87 Difference]: Start difference. First operand 3160 states and 4458 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:05:44,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:05:44,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:05:44,762 INFO L93 Difference]: Finished difference Result 6455 states and 9165 transitions. [2022-11-18 20:05:44,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:05:44,763 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 169 [2022-11-18 20:05:44,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:05:44,787 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:05:44,787 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:05:44,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:05:44,806 INFO L413 NwaCegarLoop]: 3198 mSDtfsCounter, 6702 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 4397 mSolverCounterSat, 4779 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6702 SdHoareTripleChecker+Valid, 7059 SdHoareTripleChecker+Invalid, 9177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4779 IncrementalHoareTripleChecker+Valid, 4397 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:05:44,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6702 Valid, 7059 Invalid, 9177 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4779 Valid, 4397 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-18 20:05:44,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:05:45,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:05:45,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2632794457274827) internal successors, (2735), 2206 states have internal predecessors, (2735), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:05:45,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4457 transitions. [2022-11-18 20:05:45,084 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4457 transitions. Word has length 169 [2022-11-18 20:05:45,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:05:45,084 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4457 transitions. [2022-11-18 20:05:45,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:05:45,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4457 transitions. [2022-11-18 20:05:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-18 20:05:45,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:05:45,089 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:05:45,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:05:45,089 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:05:45,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:05:45,090 INFO L85 PathProgramCache]: Analyzing trace with hash 20158436, now seen corresponding path program 1 times [2022-11-18 20:05:45,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:05:45,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350164889] [2022-11-18 20:05:45,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:05:45,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:05:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:05:46,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:05:46,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:05:46,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:46,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:46,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:05:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:46,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:05:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:46,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:05:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:05:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:05:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:05:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:05:46,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:05:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:05:46,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:05:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:05:46,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:05:46,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:05:46,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:05:46,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:05:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:05:46,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:05:46,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350164889] [2022-11-18 20:05:46,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350164889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:05:46,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:05:46,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:05:46,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180367005] [2022-11-18 20:05:46,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:05:46,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:05:46,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:05:46,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:05:46,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:05:46,515 INFO L87 Difference]: Start difference. First operand 3160 states and 4457 transitions. Second operand has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:01,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:01,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:01,328 INFO L93 Difference]: Finished difference Result 6455 states and 9163 transitions. [2022-11-18 20:06:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:06:01,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 170 [2022-11-18 20:06:01,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:01,355 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:06:01,355 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:06:01,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:06:01,374 INFO L413 NwaCegarLoop]: 3199 mSDtfsCounter, 6698 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 4396 mSolverCounterSat, 4777 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6698 SdHoareTripleChecker+Valid, 7061 SdHoareTripleChecker+Invalid, 9174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4777 IncrementalHoareTripleChecker+Valid, 4396 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:01,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6698 Valid, 7061 Invalid, 9174 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4777 Valid, 4396 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-18 20:06:01,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:06:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:06:01,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2628175519630485) internal successors, (2734), 2206 states have internal predecessors, (2734), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:06:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4456 transitions. [2022-11-18 20:06:01,700 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4456 transitions. Word has length 170 [2022-11-18 20:06:01,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:01,701 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4456 transitions. [2022-11-18 20:06:01,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.666666666666666) internal successors, (76), 5 states have internal predecessors, (76), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:01,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4456 transitions. [2022-11-18 20:06:01,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2022-11-18 20:06:01,707 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:01,707 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:01,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:06:01,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:06:01,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:01,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1530226617, now seen corresponding path program 1 times [2022-11-18 20:06:01,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:01,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064776295] [2022-11-18 20:06:01,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:01,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:06:02,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:06:02,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:06:02,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:02,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:06:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:06:02,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:02,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:06:02,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:06:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:06:02,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:02,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:06:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:06:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:06:02,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:02,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:06:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:03,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:06:03,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:03,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:06:03,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:03,145 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:06:03,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:03,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064776295] [2022-11-18 20:06:03,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064776295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:03,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:03,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:06:03,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059590102] [2022-11-18 20:06:03,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:03,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:06:03,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:03,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:06:03,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:06:03,148 INFO L87 Difference]: Start difference. First operand 3160 states and 4456 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:17,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:18,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:18,146 INFO L93 Difference]: Finished difference Result 6455 states and 9161 transitions. [2022-11-18 20:06:18,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:06:18,147 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 171 [2022-11-18 20:06:18,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:18,168 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:06:18,168 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:06:18,182 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:06:18,184 INFO L413 NwaCegarLoop]: 3198 mSDtfsCounter, 6694 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 4393 mSolverCounterSat, 4779 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6694 SdHoareTripleChecker+Valid, 7059 SdHoareTripleChecker+Invalid, 9173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4779 IncrementalHoareTripleChecker+Valid, 4393 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:18,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6694 Valid, 7059 Invalid, 9173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4779 Valid, 4393 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-18 20:06:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:06:18,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:06:18,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2623556581986144) internal successors, (2733), 2206 states have internal predecessors, (2733), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:06:18,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4455 transitions. [2022-11-18 20:06:18,496 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4455 transitions. Word has length 171 [2022-11-18 20:06:18,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:18,497 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4455 transitions. [2022-11-18 20:06:18,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 5 states have internal predecessors, (77), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:18,498 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4455 transitions. [2022-11-18 20:06:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-18 20:06:18,502 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:18,503 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:18,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:06:18,503 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:06:18,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:18,504 INFO L85 PathProgramCache]: Analyzing trace with hash 1212216576, now seen corresponding path program 1 times [2022-11-18 20:06:18,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:18,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291527067] [2022-11-18 20:06:18,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:18,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:06:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:06:19,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:06:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:19,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:19,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:06:19,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:19,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:19,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:06:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:19,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:06:19,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:06:19,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:06:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:06:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:06:19,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:06:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:06:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:06:19,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:06:19,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:19,894 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:06:19,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:19,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291527067] [2022-11-18 20:06:19,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291527067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:19,894 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:19,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:06:19,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413361106] [2022-11-18 20:06:19,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:19,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:06:19,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:19,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:06:19,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:06:19,896 INFO L87 Difference]: Start difference. First operand 3160 states and 4455 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:33,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:33,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:33,919 INFO L93 Difference]: Finished difference Result 6455 states and 9159 transitions. [2022-11-18 20:06:33,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:06:33,919 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 172 [2022-11-18 20:06:33,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:33,943 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:06:33,943 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:06:33,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:06:33,958 INFO L413 NwaCegarLoop]: 3196 mSDtfsCounter, 6690 mSDsluCounter, 3859 mSDsCounter, 0 mSdLazyCounter, 4389 mSolverCounterSat, 4783 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6690 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 9173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4783 IncrementalHoareTripleChecker+Valid, 4389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:33,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6690 Valid, 7055 Invalid, 9173 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4783 Valid, 4389 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2022-11-18 20:06:33,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:06:34,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:06:34,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.26189376443418) internal successors, (2732), 2206 states have internal predecessors, (2732), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:06:34,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4454 transitions. [2022-11-18 20:06:34,273 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4454 transitions. Word has length 172 [2022-11-18 20:06:34,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:34,274 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4454 transitions. [2022-11-18 20:06:34,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:34,275 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4454 transitions. [2022-11-18 20:06:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-18 20:06:34,279 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:34,279 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:34,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:06:34,280 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:06:34,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:34,280 INFO L85 PathProgramCache]: Analyzing trace with hash 58356501, now seen corresponding path program 1 times [2022-11-18 20:06:34,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:34,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109814842] [2022-11-18 20:06:34,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:34,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:34,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:06:35,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:06:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:06:35,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:35,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:06:35,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:35,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:06:35,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:06:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:06:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:06:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:06:35,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:06:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:06:35,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:06:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:06:35,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:06:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:35,671 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:06:35,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:35,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109814842] [2022-11-18 20:06:35,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109814842] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:35,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:35,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:06:35,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401692955] [2022-11-18 20:06:35,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:35,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:06:35,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:35,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:06:35,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:06:35,674 INFO L87 Difference]: Start difference. First operand 3160 states and 4454 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:51,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:06:52,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:06:52,086 INFO L93 Difference]: Finished difference Result 6455 states and 9157 transitions. [2022-11-18 20:06:52,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:06:52,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2022-11-18 20:06:52,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:06:52,110 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:06:52,110 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:06:52,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:06:52,124 INFO L413 NwaCegarLoop]: 3199 mSDtfsCounter, 6686 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 4390 mSolverCounterSat, 4777 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6686 SdHoareTripleChecker+Valid, 7061 SdHoareTripleChecker+Invalid, 9168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4777 IncrementalHoareTripleChecker+Valid, 4390 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2022-11-18 20:06:52,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6686 Valid, 7061 Invalid, 9168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4777 Valid, 4390 Invalid, 1 Unknown, 0 Unchecked, 15.5s Time] [2022-11-18 20:06:52,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:06:52,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:06:52,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.261431870669746) internal successors, (2731), 2206 states have internal predecessors, (2731), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:06:52,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4453 transitions. [2022-11-18 20:06:52,405 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4453 transitions. Word has length 173 [2022-11-18 20:06:52,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:06:52,406 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4453 transitions. [2022-11-18 20:06:52,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 5 states have internal predecessors, (79), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:06:52,407 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4453 transitions. [2022-11-18 20:06:52,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-18 20:06:52,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:06:52,411 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:06:52,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:06:52,411 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:06:52,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:06:52,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1237050852, now seen corresponding path program 1 times [2022-11-18 20:06:52,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:06:52,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442623160] [2022-11-18 20:06:52,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:06:52,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:06:52,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:06:53,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:06:53,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:06:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:53,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:53,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:53,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:06:53,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:06:53,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:06:53,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:06:53,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:06:53,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:06:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:06:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:06:53,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:06:53,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:06:53,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:06:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:06:53,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:06:53,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:06:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:06:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:06:53,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:06:53,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442623160] [2022-11-18 20:06:53,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442623160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:06:53,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:06:53,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:06:53,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116442696] [2022-11-18 20:06:53,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:06:53,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:06:53,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:06:53,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:06:53,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:06:53,806 INFO L87 Difference]: Start difference. First operand 3160 states and 4453 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:08,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:08,869 INFO L93 Difference]: Finished difference Result 6455 states and 9155 transitions. [2022-11-18 20:07:08,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:07:08,870 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2022-11-18 20:07:08,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:07:08,894 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:07:08,894 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:07:08,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:07:08,910 INFO L413 NwaCegarLoop]: 3196 mSDtfsCounter, 6682 mSDsluCounter, 3859 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 4783 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6682 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 9169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4783 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:07:08,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6682 Valid, 7055 Invalid, 9169 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4783 Valid, 4385 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-18 20:07:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:07:09,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:07:09,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2609699769053118) internal successors, (2730), 2206 states have internal predecessors, (2730), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:07:09,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4452 transitions. [2022-11-18 20:07:09,424 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4452 transitions. Word has length 174 [2022-11-18 20:07:09,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:07:09,425 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4452 transitions. [2022-11-18 20:07:09,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 5 states have internal predecessors, (80), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:09,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4452 transitions. [2022-11-18 20:07:09,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-18 20:07:09,431 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:07:09,431 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:09,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:07:09,432 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:07:09,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:09,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1669510769, now seen corresponding path program 1 times [2022-11-18 20:07:09,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:09,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621273480] [2022-11-18 20:07:09,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:09,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:07:10,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:07:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:07:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:10,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:10,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:07:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:10,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:10,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:10,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:07:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:10,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:10,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:07:10,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:07:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:07:10,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:10,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:07:10,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:07:10,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:07:10,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:07:10,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:07:10,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:07:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:10,710 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:07:10,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:10,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621273480] [2022-11-18 20:07:10,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621273480] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:10,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:10,711 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:07:10,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734608114] [2022-11-18 20:07:10,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:10,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:07:10,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:10,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:07:10,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:07:10,712 INFO L87 Difference]: Start difference. First operand 3160 states and 4452 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:25,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:25,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:25,441 INFO L93 Difference]: Finished difference Result 6455 states and 9153 transitions. [2022-11-18 20:07:25,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:07:25,442 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2022-11-18 20:07:25,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:07:25,461 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:07:25,461 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:07:25,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:07:25,471 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 6678 mSDsluCounter, 3860 mSDsCounter, 0 mSdLazyCounter, 4384 mSolverCounterSat, 4781 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6678 SdHoareTripleChecker+Valid, 7057 SdHoareTripleChecker+Invalid, 9166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4781 IncrementalHoareTripleChecker+Valid, 4384 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:07:25,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6678 Valid, 7057 Invalid, 9166 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4781 Valid, 4384 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2022-11-18 20:07:25,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:07:25,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:07:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2605080831408777) internal successors, (2729), 2206 states have internal predecessors, (2729), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:07:25,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4451 transitions. [2022-11-18 20:07:25,849 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4451 transitions. Word has length 175 [2022-11-18 20:07:25,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:07:25,850 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4451 transitions. [2022-11-18 20:07:25,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:25,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4451 transitions. [2022-11-18 20:07:25,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-18 20:07:25,855 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:07:25,855 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:25,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 20:07:25,855 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:07:25,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:25,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1693124408, now seen corresponding path program 1 times [2022-11-18 20:07:25,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:25,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803853603] [2022-11-18 20:07:25,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:25,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:26,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:07:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:07:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:07:26,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:26,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:07:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:26,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:07:27,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:27,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:27,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:07:27,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:07:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:07:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:27,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:07:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:07:27,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:07:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:07:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:07:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:07:27,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:27,231 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:07:27,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:27,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803853603] [2022-11-18 20:07:27,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803853603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:27,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:27,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:07:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805212879] [2022-11-18 20:07:27,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:27,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:07:27,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:27,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:07:27,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:07:27,234 INFO L87 Difference]: Start difference. First operand 3160 states and 4451 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:41,850 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:42,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:42,043 INFO L93 Difference]: Finished difference Result 6455 states and 9151 transitions. [2022-11-18 20:07:42,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:07:42,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2022-11-18 20:07:42,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:07:42,064 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:07:42,065 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:07:42,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:07:42,078 INFO L413 NwaCegarLoop]: 3201 mSDtfsCounter, 6674 mSDsluCounter, 3864 mSDsCounter, 0 mSdLazyCounter, 4386 mSolverCounterSat, 4773 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6674 SdHoareTripleChecker+Valid, 7065 SdHoareTripleChecker+Invalid, 9160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4773 IncrementalHoareTripleChecker+Valid, 4386 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:07:42,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6674 Valid, 7065 Invalid, 9160 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4773 Valid, 4386 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2022-11-18 20:07:42,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:07:42,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:07:42,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2600461893764434) internal successors, (2728), 2206 states have internal predecessors, (2728), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:07:42,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4450 transitions. [2022-11-18 20:07:42,396 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4450 transitions. Word has length 176 [2022-11-18 20:07:42,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:07:42,397 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4450 transitions. [2022-11-18 20:07:42,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:42,397 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4450 transitions. [2022-11-18 20:07:42,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2022-11-18 20:07:42,401 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:07:42,401 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:42,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:07:42,402 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:07:42,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:42,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1755303475, now seen corresponding path program 1 times [2022-11-18 20:07:42,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:42,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958208426] [2022-11-18 20:07:42,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:42,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:07:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:07:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:07:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:07:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:07:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:07:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:07:43,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:07:43,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:07:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:07:43,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:07:43,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:07:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:07:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:07:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:07:43,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:07:43,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958208426] [2022-11-18 20:07:43,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958208426] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:07:43,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:07:43,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:07:43,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203082406] [2022-11-18 20:07:43,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:07:43,540 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:07:43,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:07:43,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:07:43,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:07:43,541 INFO L87 Difference]: Start difference. First operand 3160 states and 4450 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:58,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:07:58,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:07:58,403 INFO L93 Difference]: Finished difference Result 6455 states and 9149 transitions. [2022-11-18 20:07:58,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:07:58,404 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 177 [2022-11-18 20:07:58,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:07:58,421 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:07:58,421 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:07:58,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:07:58,432 INFO L413 NwaCegarLoop]: 3199 mSDtfsCounter, 6670 mSDsluCounter, 3862 mSDsCounter, 0 mSdLazyCounter, 4382 mSolverCounterSat, 4777 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6670 SdHoareTripleChecker+Valid, 7061 SdHoareTripleChecker+Invalid, 9160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4777 IncrementalHoareTripleChecker+Valid, 4382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:07:58,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6670 Valid, 7061 Invalid, 9160 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4777 Valid, 4382 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-18 20:07:58,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:07:58,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:07:58,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2595842956120091) internal successors, (2727), 2206 states have internal predecessors, (2727), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:07:58,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4449 transitions. [2022-11-18 20:07:58,827 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4449 transitions. Word has length 177 [2022-11-18 20:07:58,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:07:58,828 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4449 transitions. [2022-11-18 20:07:58,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 5 states have internal predecessors, (83), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:07:58,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4449 transitions. [2022-11-18 20:07:58,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-18 20:07:58,833 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:07:58,833 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:07:58,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:07:58,833 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:07:58,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:07:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1167868844, now seen corresponding path program 1 times [2022-11-18 20:07:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:07:58,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060653226] [2022-11-18 20:07:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:07:58,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:07:59,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:07:59,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:07:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:07:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:59,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:59,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:59,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:07:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:07:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:07:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:07:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:07:59,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:07:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:07:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:07:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:07:59,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:07:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:07:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:07:59,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:07:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:07:59,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:07:59,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:08:00,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:00,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060653226] [2022-11-18 20:08:00,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060653226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:00,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:00,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:08:00,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680173979] [2022-11-18 20:08:00,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:00,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:00,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:00,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:00,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:00,023 INFO L87 Difference]: Start difference. First operand 3160 states and 4449 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:08:14,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:14,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:14,784 INFO L93 Difference]: Finished difference Result 6455 states and 9147 transitions. [2022-11-18 20:08:14,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:14,785 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 178 [2022-11-18 20:08:14,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:14,802 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:08:14,802 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:08:14,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:08:14,816 INFO L413 NwaCegarLoop]: 3198 mSDtfsCounter, 6666 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 4379 mSolverCounterSat, 4779 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6666 SdHoareTripleChecker+Valid, 7059 SdHoareTripleChecker+Invalid, 9159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4779 IncrementalHoareTripleChecker+Valid, 4379 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:14,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6666 Valid, 7059 Invalid, 9159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4779 Valid, 4379 Invalid, 1 Unknown, 0 Unchecked, 13.9s Time] [2022-11-18 20:08:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:08:15,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:08:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.259122401847575) internal successors, (2726), 2206 states have internal predecessors, (2726), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:08:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4448 transitions. [2022-11-18 20:08:15,266 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4448 transitions. Word has length 178 [2022-11-18 20:08:15,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:15,267 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4448 transitions. [2022-11-18 20:08:15,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:08:15,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4448 transitions. [2022-11-18 20:08:15,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-18 20:08:15,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:15,271 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:15,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 20:08:15,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:15,272 INFO L85 PathProgramCache]: Analyzing trace with hash -22747863, now seen corresponding path program 1 times [2022-11-18 20:08:15,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:15,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390310431] [2022-11-18 20:08:15,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:15,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:15,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:08:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:08:16,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:08:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:16,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:16,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:08:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:16,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:16,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:08:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:16,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:08:16,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:08:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:08:16,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:16,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:08:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:08:16,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:08:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:08:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:08:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:08:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:08:16,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:16,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390310431] [2022-11-18 20:08:16,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390310431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:16,577 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:16,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:08:16,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26271435] [2022-11-18 20:08:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:16,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:16,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:16,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:16,579 INFO L87 Difference]: Start difference. First operand 3160 states and 4448 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:08:31,330 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:31,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:31,536 INFO L93 Difference]: Finished difference Result 6455 states and 9145 transitions. [2022-11-18 20:08:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:31,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 179 [2022-11-18 20:08:31,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:31,557 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:08:31,557 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:08:31,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:08:31,571 INFO L413 NwaCegarLoop]: 3196 mSDtfsCounter, 6662 mSDsluCounter, 3859 mSDsCounter, 0 mSdLazyCounter, 4375 mSolverCounterSat, 4783 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6662 SdHoareTripleChecker+Valid, 7055 SdHoareTripleChecker+Invalid, 9159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4783 IncrementalHoareTripleChecker+Valid, 4375 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:31,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6662 Valid, 7055 Invalid, 9159 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4783 Valid, 4375 Invalid, 1 Unknown, 0 Unchecked, 14.1s Time] [2022-11-18 20:08:31,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:08:32,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:08:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2586605080831408) internal successors, (2725), 2206 states have internal predecessors, (2725), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:08:32,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4447 transitions. [2022-11-18 20:08:32,038 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4447 transitions. Word has length 179 [2022-11-18 20:08:32,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:32,039 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4447 transitions. [2022-11-18 20:08:32,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:08:32,039 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4447 transitions. [2022-11-18 20:08:32,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-18 20:08:32,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:32,043 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:32,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 20:08:32,043 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:32,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:32,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1230780784, now seen corresponding path program 1 times [2022-11-18 20:08:32,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:32,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343503522] [2022-11-18 20:08:32,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:32,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:08:32,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:08:32,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:08:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:08:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:32,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:08:32,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:08:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:32,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:08:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:08:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:08:33,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:08:33,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:08:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:08:33,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:08:33,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:08:33,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:33,183 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:08:33,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:33,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343503522] [2022-11-18 20:08:33,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343503522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:33,184 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:33,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:08:33,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792825787] [2022-11-18 20:08:33,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:33,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:33,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:33,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:33,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:33,187 INFO L87 Difference]: Start difference. First operand 3160 states and 4447 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:08:48,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:08:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:08:48,251 INFO L93 Difference]: Finished difference Result 6455 states and 9143 transitions. [2022-11-18 20:08:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:08:48,251 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 180 [2022-11-18 20:08:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:08:48,271 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:08:48,271 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:08:48,285 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:08:48,286 INFO L413 NwaCegarLoop]: 3197 mSDtfsCounter, 6658 mSDsluCounter, 3860 mSDsCounter, 0 mSdLazyCounter, 4374 mSolverCounterSat, 4781 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6658 SdHoareTripleChecker+Valid, 7057 SdHoareTripleChecker+Invalid, 9156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4781 IncrementalHoareTripleChecker+Valid, 4374 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:08:48,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6658 Valid, 7057 Invalid, 9156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4781 Valid, 4374 Invalid, 1 Unknown, 0 Unchecked, 14.2s Time] [2022-11-18 20:08:48,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:08:48,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:08:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2581986143187067) internal successors, (2724), 2206 states have internal predecessors, (2724), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:08:48,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4446 transitions. [2022-11-18 20:08:48,805 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4446 transitions. Word has length 180 [2022-11-18 20:08:48,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:08:48,806 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4446 transitions. [2022-11-18 20:08:48,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 5 states have internal predecessors, (86), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:08:48,806 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4446 transitions. [2022-11-18 20:08:48,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-18 20:08:48,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:08:48,810 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:08:48,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 20:08:48,810 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:08:48,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:08:48,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1549979781, now seen corresponding path program 1 times [2022-11-18 20:08:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:08:48,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326276643] [2022-11-18 20:08:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:08:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:08:49,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:08:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:08:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:08:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:49,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:49,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:08:49,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:49,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:08:49,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:49,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:08:49,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:08:49,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:08:49,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:08:49,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:08:49,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:08:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:08:49,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:08:49,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:08:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:08:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:08:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:49,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:08:49,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:08:50,080 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:08:50,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:08:50,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326276643] [2022-11-18 20:08:50,081 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326276643] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:08:50,081 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:08:50,081 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:08:50,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521134252] [2022-11-18 20:08:50,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:08:50,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:08:50,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:08:50,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:08:50,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:08:50,083 INFO L87 Difference]: Start difference. First operand 3160 states and 4446 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:09:04,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:04,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:04,377 INFO L93 Difference]: Finished difference Result 6455 states and 9141 transitions. [2022-11-18 20:09:04,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:09:04,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 181 [2022-11-18 20:09:04,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:04,393 INFO L225 Difference]: With dead ends: 6455 [2022-11-18 20:09:04,394 INFO L226 Difference]: Without dead ends: 3312 [2022-11-18 20:09:04,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:09:04,408 INFO L413 NwaCegarLoop]: 3195 mSDtfsCounter, 6654 mSDsluCounter, 3858 mSDsCounter, 0 mSdLazyCounter, 4370 mSolverCounterSat, 4785 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6654 SdHoareTripleChecker+Valid, 7053 SdHoareTripleChecker+Invalid, 9156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4785 IncrementalHoareTripleChecker+Valid, 4370 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:04,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6654 Valid, 7053 Invalid, 9156 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4785 Valid, 4370 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2022-11-18 20:09:04,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3312 states. [2022-11-18 20:09:04,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3312 to 3160. [2022-11-18 20:09:04,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3160 states, 2165 states have (on average 1.2577367205542724) internal successors, (2723), 2206 states have internal predecessors, (2723), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:09:04,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3160 states to 3160 states and 4445 transitions. [2022-11-18 20:09:04,950 INFO L78 Accepts]: Start accepts. Automaton has 3160 states and 4445 transitions. Word has length 181 [2022-11-18 20:09:04,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:04,950 INFO L495 AbstractCegarLoop]: Abstraction has 3160 states and 4445 transitions. [2022-11-18 20:09:04,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 5 states have internal predecessors, (87), 2 states have call successors, (22), 3 states have call predecessors, (22), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-18 20:09:04,951 INFO L276 IsEmpty]: Start isEmpty. Operand 3160 states and 4445 transitions. [2022-11-18 20:09:04,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-18 20:09:04,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:04,954 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:09:04,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 20:09:04,955 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:04,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:04,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1578608932, now seen corresponding path program 1 times [2022-11-18 20:09:04,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:04,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924509796] [2022-11-18 20:09:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:04,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:09:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:09:06,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:09:06,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:06,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:09:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:09:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:09:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:09:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:09:06,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:09:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:09:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:09:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:06,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:09:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:09:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:09:06,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-18 20:09:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:09:06,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-18 20:09:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2022-11-18 20:09:06,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:06,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924509796] [2022-11-18 20:09:06,286 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924509796] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:09:06,286 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:09:06,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:09:06,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135857026] [2022-11-18 20:09:06,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:09:06,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:09:06,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:06,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:09:06,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:09:06,288 INFO L87 Difference]: Start difference. First operand 3160 states and 4445 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-18 20:09:21,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:22,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:22,088 INFO L93 Difference]: Finished difference Result 3313 states and 4683 transitions. [2022-11-18 20:09:22,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:09:22,089 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 181 [2022-11-18 20:09:22,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:22,104 INFO L225 Difference]: With dead ends: 3313 [2022-11-18 20:09:22,105 INFO L226 Difference]: Without dead ends: 3311 [2022-11-18 20:09:22,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:09:22,109 INFO L413 NwaCegarLoop]: 3216 mSDtfsCounter, 1220 mSDsluCounter, 10062 mSDsCounter, 0 mSdLazyCounter, 7113 mSolverCounterSat, 672 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1502 SdHoareTripleChecker+Valid, 13278 SdHoareTripleChecker+Invalid, 7786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 7113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:22,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1502 Valid, 13278 Invalid, 7786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [672 Valid, 7113 Invalid, 1 Unknown, 0 Unchecked, 14.9s Time] [2022-11-18 20:09:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3311 states. [2022-11-18 20:09:22,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3311 to 3158. [2022-11-18 20:09:22,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 2164 states have (on average 1.2573937153419594) internal successors, (2721), 2204 states have internal predecessors, (2721), 861 states have call successors, (861), 132 states have call predecessors, (861), 132 states have return successors, (861), 848 states have call predecessors, (861), 861 states have call successors, (861) [2022-11-18 20:09:22,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 4443 transitions. [2022-11-18 20:09:22,562 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 4443 transitions. Word has length 181 [2022-11-18 20:09:22,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:22,562 INFO L495 AbstractCegarLoop]: Abstraction has 3158 states and 4443 transitions. [2022-11-18 20:09:22,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2022-11-18 20:09:22,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 4443 transitions. [2022-11-18 20:09:22,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-18 20:09:22,565 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:09:22,566 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-18 20:09:22,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 20:09:22,566 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:09:22,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:09:22,567 INFO L85 PathProgramCache]: Analyzing trace with hash -379712199, now seen corresponding path program 1 times [2022-11-18 20:09:22,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:09:22,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788741830] [2022-11-18 20:09:22,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:09:22,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:09:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-11-18 20:09:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-18 20:09:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-18 20:09:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:09:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-11-18 20:09:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:24,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:09:24,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-18 20:09:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:24,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:09:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 20:09:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:09:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-11-18 20:09:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:09:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-18 20:09:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:09:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-11-18 20:09:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 20:09:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:24,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-18 20:09:24,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:09:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-11-18 20:09:24,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-18 20:09:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:09:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2022-11-18 20:09:24,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:09:24,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788741830] [2022-11-18 20:09:24,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788741830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:09:24,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:09:24,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:09:24,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030312920] [2022-11-18 20:09:24,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:09:24,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:09:24,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:09:24,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:09:24,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:09:24,195 INFO L87 Difference]: Start difference. First operand 3158 states and 4443 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-18 20:09:38,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:09:38,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:09:38,996 INFO L93 Difference]: Finished difference Result 3309 states and 4675 transitions. [2022-11-18 20:09:38,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:09:38,997 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 201 [2022-11-18 20:09:38,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:09:38,998 INFO L225 Difference]: With dead ends: 3309 [2022-11-18 20:09:38,998 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:09:39,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:09:39,010 INFO L413 NwaCegarLoop]: 3212 mSDtfsCounter, 1218 mSDsluCounter, 10054 mSDsCounter, 0 mSdLazyCounter, 7081 mSolverCounterSat, 672 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 13266 SdHoareTripleChecker+Invalid, 7754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 672 IncrementalHoareTripleChecker+Valid, 7081 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:09:39,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 13266 Invalid, 7754 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [672 Valid, 7081 Invalid, 1 Unknown, 0 Unchecked, 14.0s Time] [2022-11-18 20:09:39,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:09:39,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:09:39,011 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 20:09:39,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:09:39,013 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 201 [2022-11-18 20:09:39,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:09:39,013 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:09:39,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 4 states have internal predecessors, (82), 1 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2022-11-18 20:09:39,014 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:09:39,014 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:09:39,017 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-18 20:09:39,018 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-18 20:09:39,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 20:09:39,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:12:24,982 WARN L233 SmtUtils]: Spent 2.74m on a formula simplification. DAG size of input: 90 DAG size of output: 88 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:15:26,734 WARN L233 SmtUtils]: Spent 3.02m on a formula simplification. DAG size of input: 90 DAG size of output: 88 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)