./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 --- 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-5e519f3 [2022-11-03 02:06:34,628 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:06:34,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:06:34,679 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:06:34,680 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:06:34,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:06:34,686 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:06:34,689 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:06:34,693 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:06:34,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:06:34,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:06:34,704 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:06:34,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:06:34,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:06:34,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:06:34,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:06:34,712 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:06:34,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:06:34,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:06:34,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:06:34,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:06:34,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:06:34,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:06:34,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:06:34,738 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:06:34,739 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:06:34,739 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:06:34,741 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:06:34,741 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:06:34,742 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:06:34,743 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:06:34,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:06:34,747 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:06:34,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:06:34,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:06:34,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:06:34,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:06:34,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:06:34,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:06:34,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:06:34,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:06:34,755 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:06:34,793 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:06:34,793 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:06:34,794 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:06:34,794 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:06:34,795 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:06:34,795 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:06:34,796 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:06:34,796 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:06:34,796 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:06:34,797 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:06:34,798 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:06:34,798 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:06:34,798 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:06:34,799 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:06:34,799 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:06:34,799 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:06:34,799 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:06:34,800 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:06:34,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:06:34,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:06:34,801 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:06:34,801 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:06:34,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:06:34,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:06:34,802 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:06:34,802 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:06:34,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:06:34,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:06:34,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:06:34,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:06:34,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:06:34,805 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:06:34,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:06:34,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:06:34,806 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:06:34,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:06:34,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:06:34,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:06:34,807 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_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 [2022-11-03 02:06:35,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:06:35,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:06:35,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:06:35,178 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:06:35,179 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:06:35,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-03 02:06:35,263 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/963f4b019/38eae9d46e0c4bbe8cee68dae88d6a5b/FLAGeacef7f5e [2022-11-03 02:06:36,304 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:06:36,306 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-03 02:06:36,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/963f4b019/38eae9d46e0c4bbe8cee68dae88d6a5b/FLAGeacef7f5e [2022-11-03 02:06:36,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/963f4b019/38eae9d46e0c4bbe8cee68dae88d6a5b [2022-11-03 02:06:36,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:06:36,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:06:36,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:06:36,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:06:36,655 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:06:36,656 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:06:36" (1/1) ... [2022-11-03 02:06:36,658 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d47be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:36, skipping insertion in model container [2022-11-03 02:06:36,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:06:36" (1/1) ... [2022-11-03 02:06:36,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:06:36,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:06:39,741 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-03 02:06:39,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-03 02:06:39,780 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:06:39,827 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:06:40,313 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-03 02:06:40,314 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-03 02:06:40,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:06:40,499 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:06:40,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40 WrapperNode [2022-11-03 02:06:40,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:06:40,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:06:40,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:06:40,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:06:40,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:40,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:40,824 INFO L138 Inliner]: procedures = 430, calls = 2331, calls flagged for inlining = 195, calls inlined = 180, statements flattened = 4898 [2022-11-03 02:06:40,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:06:40,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:06:40,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:06:40,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:06:40,836 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:40,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:40,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:40,873 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:40,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:41,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:41,098 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:41,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:41,167 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:06:41,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:06:41,168 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:06:41,168 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:06:41,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (1/1) ... [2022-11-03 02:06:41,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:06:41,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:41,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:06:41,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:06:41,256 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-11-03 02:06:41,256 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-11-03 02:06:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:06:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:06:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:06:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:06:41,257 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:06:41,257 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:06:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-11-03 02:06:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-11-03 02:06:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2022-11-03 02:06:41,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2022-11-03 02:06:41,258 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:06:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:06:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-11-03 02:06:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-11-03 02:06:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-11-03 02:06:41,259 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-11-03 02:06:41,259 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:06:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:06:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-03 02:06:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-03 02:06:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-11-03 02:06:41,260 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-11-03 02:06:41,260 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-11-03 02:06:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-11-03 02:06:41,261 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:06:41,261 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:06:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:06:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:06:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:06:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:06:41,262 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:06:41,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:06:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:06:41,263 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:06:41,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:06:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:06:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:06:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-11-03 02:06:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-11-03 02:06:41,264 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-11-03 02:06:41,264 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-11-03 02:06:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:06:41,265 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:06:41,265 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-11-03 02:06:41,266 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-11-03 02:06:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 02:06:41,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 02:06:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-03 02:06:41,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-03 02:06:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-11-03 02:06:41,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-11-03 02:06:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-11-03 02:06:41,268 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-11-03 02:06:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:06:41,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:06:41,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:06:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:06:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:06:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:06:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:06:41,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:06:41,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:06:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:06:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:06:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:06:41,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:06:41,271 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-11-03 02:06:41,272 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-11-03 02:06:41,272 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2022-11-03 02:06:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2022-11-03 02:06:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-11-03 02:06:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-11-03 02:06:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-11-03 02:06:41,273 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-11-03 02:06:41,273 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:06:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:06:41,274 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2022-11-03 02:06:41,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2022-11-03 02:06:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:06:41,275 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:06:41,275 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-11-03 02:06:41,275 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-11-03 02:06:41,276 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-11-03 02:06:41,276 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-11-03 02:06:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-11-03 02:06:41,277 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-11-03 02:06:41,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:06:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-03 02:06:41,278 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-03 02:06:41,278 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-11-03 02:06:41,278 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-11-03 02:06:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 02:06:41,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 02:06:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:06:41,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:06:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:06:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:06:41,280 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:06:41,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:06:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:06:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:06:41,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:06:41,281 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-11-03 02:06:41,282 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-11-03 02:06:41,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:06:41,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:06:41,283 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:06:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:06:41,286 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:06:41,286 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:06:41,287 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:06:41,287 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:06:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:06:41,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:06:41,288 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-03 02:06:41,289 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-03 02:06:41,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-03 02:06:41,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-03 02:06:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-11-03 02:06:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-11-03 02:06:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-11-03 02:06:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-11-03 02:06:41,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:06:41,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:06:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-03 02:06:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-03 02:06:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2022-11-03 02:06:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2022-11-03 02:06:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:06:41,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:06:41,298 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:06:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:06:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-03 02:06:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-03 02:06:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-11-03 02:06:41,299 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-11-03 02:06:41,299 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-11-03 02:06:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-11-03 02:06:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:06:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:06:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2022-11-03 02:06:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2022-11-03 02:06:41,300 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:06:41,300 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:06:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:06:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:06:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-03 02:06:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-03 02:06:41,301 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2022-11-03 02:06:41,301 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2022-11-03 02:06:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:06:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-11-03 02:06:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-11-03 02:06:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:06:41,302 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:06:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:06:41,302 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 02:06:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 02:06:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-11-03 02:06:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-11-03 02:06:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:06:41,303 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-11-03 02:06:41,303 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-11-03 02:06:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-11-03 02:06:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-11-03 02:06:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-03 02:06:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-03 02:06:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:06:41,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:06:41,304 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 02:06:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 02:06:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:06:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:06:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-03 02:06:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-03 02:06:41,305 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-11-03 02:06:41,305 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-11-03 02:06:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-11-03 02:06:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-11-03 02:06:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:06:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:06:41,306 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:06:41,306 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:06:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-11-03 02:06:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-11-03 02:06:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 02:06:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 02:06:41,307 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-11-03 02:06:41,307 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-11-03 02:06:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-11-03 02:06:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-11-03 02:06:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:06:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-11-03 02:06:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-11-03 02:06:41,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:06:41,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:06:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-11-03 02:06:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-11-03 02:06:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:06:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:06:41,309 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-11-03 02:06:41,309 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-11-03 02:06:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-11-03 02:06:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-11-03 02:06:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2022-11-03 02:06:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2022-11-03 02:06:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-11-03 02:06:41,310 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-11-03 02:06:41,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:06:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:06:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-11-03 02:06:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-11-03 02:06:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:06:41,311 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:06:41,311 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 02:06:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 02:06:41,312 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-03 02:06:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-03 02:06:41,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:06:41,312 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-03 02:06:41,312 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-03 02:06:41,312 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-03 02:06:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:06:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:06:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:06:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:06:41,313 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 02:06:41,313 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 02:06:42,327 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:06:42,333 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:06:43,501 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:06:46,831 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2022-11-03 02:06:46,831 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2022-11-03 02:06:46,832 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2022-11-03 02:06:46,836 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume !(16 == ~debug~0); [2022-11-03 02:06:46,836 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2022-11-03 02:06:46,836 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet340#1; [2022-11-03 02:06:46,836 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume !(16 == ~debug~0); [2022-11-03 02:06:46,837 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume 0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616; [2022-11-03 02:06:46,837 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume !(0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616); [2022-11-03 02:06:46,837 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet336#1; [2022-11-03 02:06:46,837 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume !(16 == ~debug~0); [2022-11-03 02:06:46,837 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2022-11-03 02:06:46,838 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2022-11-03 02:06:46,838 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979-2: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-03 02:06:46,838 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume 0 != (if 0 == ~debug~0 then 0 else (if 1 == ~debug~0 then 0 else ~bitwiseAnd(~debug~0, 16))); [2022-11-03 02:06:46,838 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume !(0 != (if 0 == ~debug~0 then 0 else (if 1 == ~debug~0 then 0 else ~bitwiseAnd(~debug~0, 16)))); [2022-11-03 02:06:46,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950: SUMMARY for call tlan_eisa_probe_#t~ret333#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-03 02:06:46,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret333#1;havoc tlan_eisa_probe_#t~ret333#1; [2022-11-03 02:06:46,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7017: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2022-11-03 02:06:46,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2022-11-03 02:06:46,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2022-11-03 02:06:46,839 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6954: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume 0 != (if 0 == ~debug~0 then 0 else (if 1 == ~debug~0 then 0 else ~bitwiseAnd(~debug~0, 16))); [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume !(0 != (if 0 == ~debug~0 then 0 else (if 1 == ~debug~0 then 0 else ~bitwiseAnd(~debug~0, 16)))); [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~nondet328#1; [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: SUMMARY for call tlan_eisa_probe_#t~ret327#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume 16 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume !(16 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-03 02:06:46,840 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: tlan_eisa_probe_~irq~0#1 := 5; [2022-11-03 02:06:46,841 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume -2147483648 <= tlan_eisa_probe_#t~ret338#1 && tlan_eisa_probe_#t~ret338#1 <= 2147483647;tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2022-11-03 02:06:46,841 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret334#1;havoc tlan_eisa_probe_#t~ret334#1; [2022-11-03 02:06:46,842 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960: SUMMARY for call tlan_eisa_probe_#t~ret334#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-03 02:06:46,847 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume 32 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-03 02:06:46,847 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume !(32 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-03 02:06:46,847 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: tlan_eisa_probe_~irq~0#1 := 9; [2022-11-03 02:06:46,847 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume 0 != (if 0 == ~debug~0 then 0 else (if 1 == ~debug~0 then 0 else ~bitwiseAnd(~debug~0, 16)));havoc tlan_eisa_probe_#t~nondet331#1; [2022-11-03 02:06:46,847 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume !(0 != (if 0 == ~debug~0 then 0 else (if 1 == ~debug~0 then 0 else ~bitwiseAnd(~debug~0, 16)))); [2022-11-03 02:06:46,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2022-11-03 02:06:46,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2022-11-03 02:06:46,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930: SUMMARY for call tlan_eisa_probe_#t~ret329#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-03 02:06:46,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~nondet330#1; [2022-11-03 02:06:46,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6964: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2022-11-03 02:06:46,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume 64 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-03 02:06:46,848 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume !(64 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-03 02:06:46,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: tlan_eisa_probe_~irq~0#1 := 10; [2022-11-03 02:06:46,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935-1: call tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset;havoc tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset; [2022-11-03 02:06:46,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume 128 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-03 02:06:46,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume !(128 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-03 02:06:46,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: tlan_eisa_probe_~irq~0#1 := 11; [2022-11-03 02:06:46,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: SUMMARY for call tlan_eisa_probe_#t~ret335#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-03 02:06:46,849 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7036-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2022-11-03 02:06:46,850 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret335#1;havoc tlan_eisa_probe_#t~ret335#1; [2022-11-03 02:06:47,086 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:06:49,099 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:06:49,100 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:06:49,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:49 BoogieIcfgContainer [2022-11-03 02:06:49,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:06:49,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:06:49,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:06:49,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:06:49,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:06:36" (1/3) ... [2022-11-03 02:06:49,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b75fc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:49, skipping insertion in model container [2022-11-03 02:06:49,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:06:40" (2/3) ... [2022-11-03 02:06:49,123 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b75fc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:06:49, skipping insertion in model container [2022-11-03 02:06:49,123 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:06:49" (3/3) ... [2022-11-03 02:06:49,125 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-03 02:06:49,146 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:06:49,146 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:06:49,261 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:06:49,269 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=FINITE_AUTOMATA, 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;@7890fb36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:06:49,269 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:06:49,279 INFO L276 IsEmpty]: Start isEmpty. Operand has 1552 states, 841 states have (on average 1.2330558858501783) internal successors, (1037), 895 states have internal predecessors, (1037), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) [2022-11-03 02:06:49,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-03 02:06:49,314 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:49,316 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:06:49,316 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:49,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:49,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1062266251, now seen corresponding path program 1 times [2022-11-03 02:06:49,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:49,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586459654] [2022-11-03 02:06:49,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:49,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:50,429 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-03 02:06:50,430 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:50,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586459654] [2022-11-03 02:06:50,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586459654] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:50,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:06:50,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:06:50,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474578718] [2022-11-03 02:06:50,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:50,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:50,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:50,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:50,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:50,474 INFO L87 Difference]: Start difference. First operand has 1552 states, 841 states have (on average 1.2330558858501783) internal successors, (1037), 895 states have internal predecessors, (1037), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:06:52,756 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 [] [2022-11-03 02:06:55,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:06:55,236 INFO L93 Difference]: Finished difference Result 3100 states and 4501 transitions. [2022-11-03 02:06:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:06:55,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 135 [2022-11-03 02:06:55,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:06:55,280 INFO L225 Difference]: With dead ends: 3100 [2022-11-03 02:06:55,281 INFO L226 Difference]: Without dead ends: 1497 [2022-11-03 02:06:55,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:06:55,308 INFO L413 NwaCegarLoop]: 1998 mSDtfsCounter, 12 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3987 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:06:55,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3987 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 483 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 02:06:55,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-11-03 02:06:55,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1481. [2022-11-03 02:06:55,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 811 states have (on average 1.2268803945745992) internal successors, (995), 862 states have internal predecessors, (995), 566 states have call successors, (566), 103 states have call predecessors, (566), 103 states have return successors, (566), 548 states have call predecessors, (566), 566 states have call successors, (566) [2022-11-03 02:06:55,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2127 transitions. [2022-11-03 02:06:55,542 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2127 transitions. Word has length 135 [2022-11-03 02:06:55,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:06:55,543 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2127 transitions. [2022-11-03 02:06:55,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-03 02:06:55,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2127 transitions. [2022-11-03 02:06:55,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2022-11-03 02:06:55,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:06:55,562 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:06:55,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:06:55,562 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:06:55,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:06:55,564 INFO L85 PathProgramCache]: Analyzing trace with hash 2092466452, now seen corresponding path program 1 times [2022-11-03 02:06:55,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:06:55,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302523335] [2022-11-03 02:06:55,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:55,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:06:55,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-03 02:06:56,347 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:06:56,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302523335] [2022-11-03 02:06:56,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302523335] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:06:56,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058297273] [2022-11-03 02:06:56,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:06:56,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:06:56,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:06:56,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:06:56,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:06:57,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:06:57,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:06:57,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:06:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-03 02:06:57,571 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:06:57,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058297273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:06:57,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:06:57,572 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-03 02:06:57,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261128167] [2022-11-03 02:06:57,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:06:57,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:06:57,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:06:57,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:06:57,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:06:57,575 INFO L87 Difference]: Start difference. First operand 1481 states and 2127 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:06:59,818 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 [] [2022-11-03 02:07:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:07:02,273 INFO L93 Difference]: Finished difference Result 2960 states and 4266 transitions. [2022-11-03 02:07:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:07:02,274 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2022-11-03 02:07:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:07:02,294 INFO L225 Difference]: With dead ends: 2960 [2022-11-03 02:07:02,294 INFO L226 Difference]: Without dead ends: 1493 [2022-11-03 02:07:02,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:07:02,332 INFO L413 NwaCegarLoop]: 1899 mSDtfsCounter, 6 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3789 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-03 02:07:02,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3789 Invalid, 465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-03 02:07:02,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-11-03 02:07:02,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1487. [2022-11-03 02:07:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 816 states have (on average 1.2267156862745099) internal successors, (1001), 867 states have internal predecessors, (1001), 567 states have call successors, (567), 103 states have call predecessors, (567), 103 states have return successors, (567), 549 states have call predecessors, (567), 567 states have call successors, (567) [2022-11-03 02:07:02,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2135 transitions. [2022-11-03 02:07:02,467 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2135 transitions. Word has length 151 [2022-11-03 02:07:02,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:07:02,468 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 2135 transitions. [2022-11-03 02:07:02,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-03 02:07:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2135 transitions. [2022-11-03 02:07:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2022-11-03 02:07:02,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:07:02,472 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:07:02,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:07:02,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:07:02,698 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:07:02,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:07:02,698 INFO L85 PathProgramCache]: Analyzing trace with hash -123605504, now seen corresponding path program 1 times [2022-11-03 02:07:02,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:07:02,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095132727] [2022-11-03 02:07:02,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:02,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:07:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:03,341 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-03 02:07:03,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:07:03,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095132727] [2022-11-03 02:07:03,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095132727] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:07:03,343 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098690031] [2022-11-03 02:07:03,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:07:03,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:07:03,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:07:03,346 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:07:03,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:07:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:07:04,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 3055 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:07:04,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:07:04,590 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-03 02:07:04,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:07:04,788 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-03 02:07:04,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098690031] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:07:04,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1553725628] [2022-11-03 02:07:04,812 INFO L159 IcfgInterpreter]: Started Sifa with 98 locations of interest [2022-11-03 02:07:04,813 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:07:04,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:07:04,822 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:07:04,822 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:07:11,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:11,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:11,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:11,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:11,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:11,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:11,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:11,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:07:11,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:07:11,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:07:11,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:07:11,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:07:11,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:07:11,165 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 29 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2022-11-03 02:07:12,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-03 02:07:12,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:07:12,459 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 49 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2022-11-03 02:14:07,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:14:07,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:14:07,930 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-03 02:14:07,934 INFO L158 Benchmark]: Toolchain (without parser) took 451287.78ms. Allocated memory was 96.5MB in the beginning and 2.0GB in the end (delta: 1.9GB). Free memory was 65.6MB in the beginning and 1.4GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2022-11-03 02:14:07,934 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 02:14:07,935 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3849.07ms. Allocated memory was 96.5MB in the beginning and 165.7MB in the end (delta: 69.2MB). Free memory was 65.6MB in the beginning and 74.9MB in the end (delta: -9.2MB). Peak memory consumption was 84.3MB. Max. memory is 16.1GB. [2022-11-03 02:14:07,935 INFO L158 Benchmark]: Boogie Procedure Inliner took 324.70ms. Allocated memory is still 165.7MB. Free memory was 74.9MB in the beginning and 77.6MB in the end (delta: -2.7MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-03 02:14:07,935 INFO L158 Benchmark]: Boogie Preprocessor took 340.91ms. Allocated memory was 165.7MB in the beginning and 245.4MB in the end (delta: 79.7MB). Free memory was 77.6MB in the beginning and 147.9MB in the end (delta: -70.3MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. [2022-11-03 02:14:07,936 INFO L158 Benchmark]: RCFGBuilder took 7947.37ms. Allocated memory was 245.4MB in the beginning and 635.4MB in the end (delta: 390.1MB). Free memory was 147.9MB in the beginning and 497.7MB in the end (delta: -349.8MB). Peak memory consumption was 267.8MB. Max. memory is 16.1GB. [2022-11-03 02:14:07,936 INFO L158 Benchmark]: TraceAbstraction took 438815.87ms. Allocated memory was 635.4MB in the beginning and 2.0GB in the end (delta: 1.3GB). Free memory was 496.7MB in the beginning and 1.4GB in the end (delta: -940.9MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-03 02:14:07,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 96.5MB. Free memory is still 75.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3849.07ms. Allocated memory was 96.5MB in the beginning and 165.7MB in the end (delta: 69.2MB). Free memory was 65.6MB in the beginning and 74.9MB in the end (delta: -9.2MB). Peak memory consumption was 84.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 324.70ms. Allocated memory is still 165.7MB. Free memory was 74.9MB in the beginning and 77.6MB in the end (delta: -2.7MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 340.91ms. Allocated memory was 165.7MB in the beginning and 245.4MB in the end (delta: 79.7MB). Free memory was 77.6MB in the beginning and 147.9MB in the end (delta: -70.3MB). Peak memory consumption was 45.7MB. Max. memory is 16.1GB. * RCFGBuilder took 7947.37ms. Allocated memory was 245.4MB in the beginning and 635.4MB in the end (delta: 390.1MB). Free memory was 147.9MB in the beginning and 497.7MB in the end (delta: -349.8MB). Peak memory consumption was 267.8MB. Max. memory is 16.1GB. * TraceAbstraction took 438815.87ms. Allocated memory was 635.4MB in the beginning and 2.0GB in the end (delta: 1.3GB). Free memory was 496.7MB in the beginning and 1.4GB in the end (delta: -940.9MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-03 02:14:07,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 --- 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-5e519f3 [2022-11-03 02:14:10,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:14:10,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:14:10,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:14:10,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:14:10,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:14:10,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:14:10,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:14:10,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:14:10,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:14:10,469 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:14:10,472 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:14:10,472 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:14:10,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:14:10,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:14:10,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:14:10,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:14:10,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:14:10,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:14:10,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:14:10,504 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:14:10,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:14:10,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:14:10,510 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:14:10,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:14:10,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:14:10,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:14:10,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:14:10,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:14:10,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:14:10,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:14:10,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:14:10,526 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:14:10,527 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:14:10,528 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:14:10,529 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:14:10,530 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:14:10,530 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:14:10,530 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:14:10,532 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:14:10,533 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:14:10,534 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-03 02:14:10,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:14:10,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:14:10,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:14:10,575 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:14:10,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:14:10,576 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:14:10,576 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:14:10,576 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:14:10,576 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:14:10,577 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:14:10,578 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:14:10,578 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:14:10,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:14:10,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:14:10,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:14:10,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:14:10,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:14:10,581 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 02:14:10,581 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 02:14:10,581 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 02:14:10,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:14:10,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:14:10,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:14:10,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:14:10,582 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 02:14:10,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:14:10,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:10,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:14:10,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:14:10,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:14:10,584 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 02:14:10,584 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 02:14:10,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:14:10,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:14:10,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 02:14:10,585 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 [2022-11-03 02:14:11,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:14:11,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:14:11,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:14:11,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:14:11,027 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:14:11,029 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-03 02:14:11,112 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/5e26866d3/8f570687e2a748f3aec300339f723d7f/FLAG530a95a8e [2022-11-03 02:14:12,105 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:14:12,107 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-03 02:14:12,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/5e26866d3/8f570687e2a748f3aec300339f723d7f/FLAG530a95a8e [2022-11-03 02:14:12,470 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/data/5e26866d3/8f570687e2a748f3aec300339f723d7f [2022-11-03 02:14:12,473 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:14:12,475 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:14:12,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:12,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:14:12,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:14:12,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:12" (1/1) ... [2022-11-03 02:14:12,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f65d873 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:12, skipping insertion in model container [2022-11-03 02:14:12,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:12" (1/1) ... [2022-11-03 02:14:12,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:14:12,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:14:15,726 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-03 02:14:15,729 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-03 02:14:15,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:15,824 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-03 02:14:15,902 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:14:16,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-03 02:14:16,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-03 02:14:16,306 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:16,331 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:14:16,772 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-03 02:14:16,773 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-03 02:14:16,778 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:17,100 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:14:17,100 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17 WrapperNode [2022-11-03 02:14:17,100 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:17,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:17,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:14:17,102 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:14:17,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,455 INFO L138 Inliner]: procedures = 439, calls = 2331, calls flagged for inlining = 195, calls inlined = 180, statements flattened = 4774 [2022-11-03 02:14:17,456 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:17,457 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:14:17,457 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:14:17,457 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:14:17,466 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,616 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,660 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:14:17,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:14:17,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:14:17,730 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:14:17,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (1/1) ... [2022-11-03 02:14:17,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:17,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:14:17,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:14:17,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:14:17,809 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-11-03 02:14:17,809 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-11-03 02:14:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 02:14:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 02:14:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 02:14:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 02:14:17,810 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 02:14:17,810 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 02:14:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-11-03 02:14:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-11-03 02:14:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2022-11-03 02:14:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2022-11-03 02:14:17,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:14:17,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:14:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-11-03 02:14:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-11-03 02:14:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-11-03 02:14:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-11-03 02:14:17,812 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 02:14:17,812 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 02:14:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-03 02:14:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-03 02:14:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-11-03 02:14:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-11-03 02:14:17,813 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-11-03 02:14:17,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-11-03 02:14:17,814 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 02:14:17,814 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 02:14:17,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 02:14:17,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 02:14:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 02:14:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 02:14:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 02:14:17,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 02:14:17,815 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 02:14:17,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 02:14:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:14:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-03 02:14:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 02:14:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-03 02:14:17,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-03 02:14:17,817 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 02:14:17,817 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 02:14:17,818 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-11-03 02:14:17,818 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-11-03 02:14:17,819 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-11-03 02:14:17,819 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-11-03 02:14:17,820 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:14:17,820 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:14:17,820 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-11-03 02:14:17,820 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-11-03 02:14:17,820 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 02:14:17,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 02:14:17,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-03 02:14:17,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-03 02:14:17,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-11-03 02:14:17,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-11-03 02:14:17,822 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-11-03 02:14:17,822 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-11-03 02:14:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 02:14:17,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 02:14:17,823 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 02:14:17,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 02:14:17,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 02:14:17,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 02:14:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 02:14:17,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 02:14:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 02:14:17,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 02:14:17,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 02:14:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 02:14:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-11-03 02:14:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-11-03 02:14:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2022-11-03 02:14:17,826 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2022-11-03 02:14:17,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-11-03 02:14:17,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-11-03 02:14:17,827 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-11-03 02:14:17,828 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-11-03 02:14:17,828 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 02:14:17,828 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 02:14:17,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2022-11-03 02:14:17,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2022-11-03 02:14:17,829 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 02:14:17,830 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 02:14:17,830 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-11-03 02:14:17,830 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-11-03 02:14:17,831 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-11-03 02:14:17,831 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-11-03 02:14:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-11-03 02:14:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-11-03 02:14:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:14:17,832 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-03 02:14:17,832 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-03 02:14:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-11-03 02:14:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-11-03 02:14:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 02:14:17,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 02:14:17,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:14:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 02:14:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 02:14:17,834 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 02:14:17,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 02:14:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:14:17,835 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-03 02:14:17,836 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:14:17,836 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:14:17,839 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-11-03 02:14:17,839 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-11-03 02:14:17,840 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:14:17,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 02:14:17,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 02:14:17,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 02:14:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 02:14:17,843 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 02:14:17,843 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 02:14:17,850 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 02:14:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 02:14:17,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 02:14:17,850 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-03 02:14:17,850 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-03 02:14:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-11-03 02:14:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-11-03 02:14:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-11-03 02:14:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-11-03 02:14:17,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:14:17,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:14:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-03 02:14:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-03 02:14:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-03 02:14:17,852 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-03 02:14:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-03 02:14:17,852 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2022-11-03 02:14:17,852 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2022-11-03 02:14:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-03 02:14:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 02:14:17,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 02:14:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-03 02:14:17,853 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-03 02:14:17,853 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-03 02:14:17,854 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-03 02:14:17,854 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-11-03 02:14:17,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-11-03 02:14:17,854 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-11-03 02:14:17,854 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-11-03 02:14:17,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 02:14:17,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 02:14:17,855 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2022-11-03 02:14:17,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2022-11-03 02:14:17,855 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 02:14:17,855 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 02:14:17,855 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 02:14:17,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 02:14:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-03 02:14:17,856 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-03 02:14:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2022-11-03 02:14:17,856 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2022-11-03 02:14:17,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:14:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-11-03 02:14:17,857 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-11-03 02:14:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 02:14:17,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 02:14:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:14:17,857 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-03 02:14:17,857 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-03 02:14:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-11-03 02:14:17,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-11-03 02:14:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-03 02:14:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-03 02:14:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-03 02:14:17,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-03 02:14:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:14:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-11-03 02:14:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-11-03 02:14:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-11-03 02:14:17,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-11-03 02:14:17,859 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-03 02:14:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-03 02:14:17,860 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 02:14:17,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 02:14:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-03 02:14:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-03 02:14:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 02:14:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 02:14:17,862 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-03 02:14:17,862 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-03 02:14:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-11-03 02:14:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-11-03 02:14:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-11-03 02:14:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-11-03 02:14:17,863 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 02:14:17,863 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 02:14:17,864 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 02:14:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 02:14:17,864 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-11-03 02:14:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-11-03 02:14:17,864 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-03 02:14:17,864 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-03 02:14:17,864 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-11-03 02:14:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-11-03 02:14:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-11-03 02:14:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-11-03 02:14:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-11-03 02:14:17,865 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-11-03 02:14:17,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 02:14:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 02:14:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-11-03 02:14:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-11-03 02:14:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-03 02:14:17,866 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-03 02:14:17,866 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-11-03 02:14:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-11-03 02:14:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-11-03 02:14:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-11-03 02:14:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2022-11-03 02:14:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2022-11-03 02:14:17,867 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-11-03 02:14:17,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-11-03 02:14:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 02:14:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 02:14:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-11-03 02:14:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-11-03 02:14:17,868 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 02:14:17,868 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 02:14:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-03 02:14:17,869 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-03 02:14:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-11-03 02:14:17,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-11-03 02:14:17,869 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-03 02:14:17,869 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-03 02:14:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-03 02:14:17,870 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-03 02:14:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-03 02:14:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 02:14:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 02:14:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 02:14:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 02:14:17,903 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-03 02:14:17,903 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-03 02:14:18,839 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:14:18,842 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:14:30,930 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 02:14:58,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2022-11-03 02:14:58,099 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2022-11-03 02:14:58,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet339#1; [2022-11-03 02:14:58,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume !(16bv32 == ~debug~0); [2022-11-03 02:14:58,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-03 02:14:58,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet340#1; [2022-11-03 02:14:58,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume !(16bv32 == ~debug~0); [2022-11-03 02:14:58,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset); [2022-11-03 02:14:58,100 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset)); [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet336#1; [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume !(16bv32 == ~debug~0); [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979-2: SUMMARY for call tlan_eisa_probe_#t~ret337#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-03 02:14:58,101 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950: SUMMARY for call tlan_eisa_probe_#t~ret333#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret333#1;havoc tlan_eisa_probe_#t~ret333#1; [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7017: SUMMARY for call tlan_eisa_probe_#t~ret338#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret337#1;havoc tlan_eisa_probe_#t~ret337#1; [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6954: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-03 02:14:58,102 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~nondet328#1; [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: SUMMARY for call tlan_eisa_probe_#t~ret327#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: tlan_eisa_probe_~irq~0#1 := 5bv32; [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret338#1;havoc tlan_eisa_probe_#t~ret338#1; [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret334#1;havoc tlan_eisa_probe_#t~ret334#1; [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960: SUMMARY for call tlan_eisa_probe_#t~ret334#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-03 02:14:58,103 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: tlan_eisa_probe_~irq~0#1 := 9bv32; [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet331#1; [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930: SUMMARY for call tlan_eisa_probe_#t~ret329#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~nondet330#1; [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6964: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-03 02:14:58,104 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: tlan_eisa_probe_~irq~0#1 := 10bv32; [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935-1: call tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset;havoc tlan_eisa_probe_#t~ret332#1.base, tlan_eisa_probe_#t~ret332#1.offset; [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: tlan_eisa_probe_~irq~0#1 := 11bv32; [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: SUMMARY for call tlan_eisa_probe_#t~ret335#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7036-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2022-11-03 02:14:58,105 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret335#1;havoc tlan_eisa_probe_#t~ret335#1; [2022-11-03 02:14:58,259 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:14:58,281 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:14:58,281 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-03 02:14:58,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:58 BoogieIcfgContainer [2022-11-03 02:14:58,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:14:58,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:14:58,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:14:58,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:14:58,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:14:12" (1/3) ... [2022-11-03 02:14:58,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aad8ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:58, skipping insertion in model container [2022-11-03 02:14:58,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:17" (2/3) ... [2022-11-03 02:14:58,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3aad8ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:14:58, skipping insertion in model container [2022-11-03 02:14:58,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:14:58" (3/3) ... [2022-11-03 02:14:58,296 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-03 02:14:58,318 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:14:58,318 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:14:58,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:14:58,426 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=FINITE_AUTOMATA, 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;@3e771261, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:14:58,426 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:14:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 1996 states, 1285 states have (on average 1.2568093385214008) internal successors, (1615), 1339 states have internal predecessors, (1615), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) [2022-11-03 02:14:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 02:14:58,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:14:58,470 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:14:58,470 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:14:58,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:14:58,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1038281529, now seen corresponding path program 1 times [2022-11-03 02:14:58,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:14:58,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558925504] [2022-11-03 02:14:58,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:14:58,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:14:58,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:14:58,514 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:14:58,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 02:15:00,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:01,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:15:01,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:01,293 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-03 02:15:01,310 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:01,311 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:15:01,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558925504] [2022-11-03 02:15:01,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558925504] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:01,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:01,327 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 02:15:01,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329020663] [2022-11-03 02:15:01,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:01,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:01,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:15:01,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:01,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:01,395 INFO L87 Difference]: Start difference. First operand has 1996 states, 1285 states have (on average 1.2568093385214008) internal successors, (1615), 1339 states have internal predecessors, (1615), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:15:03,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:04,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:04,653 INFO L93 Difference]: Finished difference Result 5711 states and 8287 transitions. [2022-11-03 02:15:04,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:04,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 172 [2022-11-03 02:15:04,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:04,711 INFO L225 Difference]: With dead ends: 5711 [2022-11-03 02:15:04,712 INFO L226 Difference]: Without dead ends: 3550 [2022-11-03 02:15:04,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:04,753 INFO L413 NwaCegarLoop]: 3915 mSDtfsCounter, 2422 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 6626 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:04,761 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2422 Valid, 6626 Invalid, 119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.7s Time] [2022-11-03 02:15:04,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3550 states. [2022-11-03 02:15:05,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3550 to 3533. [2022-11-03 02:15:05,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 2298 states have (on average 1.2389033942558747) internal successors, (2847), 2394 states have internal predecessors, (2847), 1033 states have call successors, (1033), 201 states have call predecessors, (1033), 201 states have return successors, (1042), 999 states have call predecessors, (1042), 1033 states have call successors, (1042) [2022-11-03 02:15:05,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4922 transitions. [2022-11-03 02:15:05,202 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4922 transitions. Word has length 172 [2022-11-03 02:15:05,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:05,204 INFO L495 AbstractCegarLoop]: Abstraction has 3533 states and 4922 transitions. [2022-11-03 02:15:05,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-03 02:15:05,205 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4922 transitions. [2022-11-03 02:15:05,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-03 02:15:05,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:05,218 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-03 02:15:05,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:05,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:15:05,442 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:05,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:05,443 INFO L85 PathProgramCache]: Analyzing trace with hash 1102762759, now seen corresponding path program 1 times [2022-11-03 02:15:05,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:15:05,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549926937] [2022-11-03 02:15:05,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:05,448 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:15:05,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:15:05,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:15:05,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 02:15:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:08,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-03 02:15:08,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:09,801 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-03 02:15:09,802 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:09,802 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:15:09,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549926937] [2022-11-03 02:15:09,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1549926937] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:09,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:09,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 02:15:09,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161136172] [2022-11-03 02:15:09,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:09,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 02:15:09,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:15:09,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 02:15:09,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-03 02:15:09,806 INFO L87 Difference]: Start difference. First operand 3533 states and 4922 transitions. Second operand has 12 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (22), 6 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-03 02:15:12,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:12,623 INFO L93 Difference]: Finished difference Result 7055 states and 9828 transitions. [2022-11-03 02:15:12,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-03 02:15:12,624 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (22), 6 states have call predecessors, (22), 4 states have call successors, (22) Word has length 172 [2022-11-03 02:15:12,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:12,666 INFO L225 Difference]: With dead ends: 7055 [2022-11-03 02:15:12,666 INFO L226 Difference]: Without dead ends: 3537 [2022-11-03 02:15:12,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:15:12,700 INFO L413 NwaCegarLoop]: 2639 mSDtfsCounter, 70 mSDsluCounter, 20935 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 23574 SdHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:12,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 23574 Invalid, 363 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-03 02:15:12,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3537 states. [2022-11-03 02:15:12,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3537 to 3533. [2022-11-03 02:15:12,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 2298 states have (on average 1.238468233246301) internal successors, (2846), 2393 states have internal predecessors, (2846), 1033 states have call successors, (1033), 201 states have call predecessors, (1033), 201 states have return successors, (1042), 999 states have call predecessors, (1042), 1033 states have call successors, (1042) [2022-11-03 02:15:13,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 4921 transitions. [2022-11-03 02:15:13,014 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 4921 transitions. Word has length 172 [2022-11-03 02:15:13,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:13,015 INFO L495 AbstractCegarLoop]: Abstraction has 3533 states and 4921 transitions. [2022-11-03 02:15:13,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.7) internal successors, (87), 9 states have internal predecessors, (87), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (22), 6 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-03 02:15:13,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 4921 transitions. [2022-11-03 02:15:13,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-03 02:15:13,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:13,020 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:13,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:13,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:15:13,234 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:13,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:13,235 INFO L85 PathProgramCache]: Analyzing trace with hash -102246426, now seen corresponding path program 1 times [2022-11-03 02:15:13,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:15:13,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1954959850] [2022-11-03 02:15:13,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:13,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:15:13,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:15:13,242 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:15:13,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-03 02:15:15,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:15,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:15:15,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:16,653 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-03 02:15:16,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:16,654 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:15:16,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1954959850] [2022-11-03 02:15:16,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1954959850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:16,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:16,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-03 02:15:16,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159447126] [2022-11-03 02:15:16,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:16,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-03 02:15:16,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:15:16,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-03 02:15:16,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-03 02:15:16,658 INFO L87 Difference]: Start difference. First operand 3533 states and 4921 transitions. Second operand has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-03 02:15:20,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:20,638 INFO L93 Difference]: Finished difference Result 7121 states and 9917 transitions. [2022-11-03 02:15:20,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-03 02:15:20,639 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) Word has length 178 [2022-11-03 02:15:20,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:20,681 INFO L225 Difference]: With dead ends: 7121 [2022-11-03 02:15:20,682 INFO L226 Difference]: Without dead ends: 3605 [2022-11-03 02:15:20,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:15:20,717 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 47 mSDsluCounter, 31661 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 34312 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:20,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 34312 Invalid, 609 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [42 Valid, 567 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-03 02:15:20,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-11-03 02:15:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3555. [2022-11-03 02:15:20,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3555 states, 2314 states have (on average 1.236819360414866) internal successors, (2862), 2409 states have internal predecessors, (2862), 1037 states have call successors, (1037), 201 states have call predecessors, (1037), 203 states have return successors, (1048), 1005 states have call predecessors, (1048), 1037 states have call successors, (1048) [2022-11-03 02:15:20,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3555 states to 3555 states and 4947 transitions. [2022-11-03 02:15:20,949 INFO L78 Accepts]: Start accepts. Automaton has 3555 states and 4947 transitions. Word has length 178 [2022-11-03 02:15:20,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:20,953 INFO L495 AbstractCegarLoop]: Abstraction has 3555 states and 4947 transitions. [2022-11-03 02:15:20,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 12 states have internal predecessors, (82), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-03 02:15:20,953 INFO L276 IsEmpty]: Start isEmpty. Operand 3555 states and 4947 transitions. [2022-11-03 02:15:20,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-03 02:15:20,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:20,958 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:21,028 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:21,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:15:21,182 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:21,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:21,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2067474220, now seen corresponding path program 1 times [2022-11-03 02:15:21,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:15:21,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1901501897] [2022-11-03 02:15:21,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:21,185 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:15:21,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:15:21,188 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:15:21,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-03 02:15:23,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:23,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 2151 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:15:23,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-11-03 02:15:23,832 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:23,833 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:15:23,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1901501897] [2022-11-03 02:15:23,833 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1901501897] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:23,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:23,834 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:23,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258115973] [2022-11-03 02:15:23,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:23,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:23,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:15:23,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:23,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:23,836 INFO L87 Difference]: Start difference. First operand 3555 states and 4947 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 02:15:26,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:26,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:26,509 INFO L93 Difference]: Finished difference Result 7141 states and 9947 transitions. [2022-11-03 02:15:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:26,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 182 [2022-11-03 02:15:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:26,562 INFO L225 Difference]: With dead ends: 7141 [2022-11-03 02:15:26,563 INFO L226 Difference]: Without dead ends: 3605 [2022-11-03 02:15:26,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:26,605 INFO L413 NwaCegarLoop]: 2672 mSDtfsCounter, 33 mSDsluCounter, 2633 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 5305 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:26,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 5305 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-11-03 02:15:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3605 states. [2022-11-03 02:15:26,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3605 to 3597. [2022-11-03 02:15:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3597 states, 2344 states have (on average 1.235494880546075) internal successors, (2896), 2439 states have internal predecessors, (2896), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 203 states have return successors, (1060), 1017 states have call predecessors, (1060), 1049 states have call successors, (1060) [2022-11-03 02:15:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3597 states to 3597 states and 5005 transitions. [2022-11-03 02:15:26,906 INFO L78 Accepts]: Start accepts. Automaton has 3597 states and 5005 transitions. Word has length 182 [2022-11-03 02:15:26,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:26,909 INFO L495 AbstractCegarLoop]: Abstraction has 3597 states and 5005 transitions. [2022-11-03 02:15:26,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-03 02:15:26,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3597 states and 5005 transitions. [2022-11-03 02:15:26,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-03 02:15:26,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:26,915 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:26,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:27,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:15:27,138 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:27,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:27,138 INFO L85 PathProgramCache]: Analyzing trace with hash -274546547, now seen corresponding path program 1 times [2022-11-03 02:15:27,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:15:27,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [368969204] [2022-11-03 02:15:27,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:27,141 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:15:27,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:15:27,143 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:15:27,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-03 02:15:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:29,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 2147 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-03 02:15:29,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:30,666 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-03 02:15:30,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:30,666 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:15:30,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [368969204] [2022-11-03 02:15:30,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [368969204] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:30,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:30,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-03 02:15:30,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736438932] [2022-11-03 02:15:30,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:30,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-03 02:15:30,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:15:30,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-03 02:15:30,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-11-03 02:15:30,669 INFO L87 Difference]: Start difference. First operand 3597 states and 5005 transitions. Second operand has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2022-11-03 02:15:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:35,102 INFO L93 Difference]: Finished difference Result 7386 states and 10296 transitions. [2022-11-03 02:15:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 02:15:35,103 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 184 [2022-11-03 02:15:35,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:35,139 INFO L225 Difference]: With dead ends: 7386 [2022-11-03 02:15:35,140 INFO L226 Difference]: Without dead ends: 3806 [2022-11-03 02:15:35,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:15:35,162 INFO L413 NwaCegarLoop]: 2734 mSDtfsCounter, 180 mSDsluCounter, 35292 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 38026 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:35,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 38026 Invalid, 680 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [51 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-03 02:15:35,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-11-03 02:15:35,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3601. [2022-11-03 02:15:35,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2346 states have (on average 1.2352941176470589) internal successors, (2898), 2443 states have internal predecessors, (2898), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-03 02:15:35,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5011 transitions. [2022-11-03 02:15:35,436 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5011 transitions. Word has length 184 [2022-11-03 02:15:35,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:35,439 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5011 transitions. [2022-11-03 02:15:35,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2022-11-03 02:15:35,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5011 transitions. [2022-11-03 02:15:35,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-03 02:15:35,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:35,446 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:35,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:35,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:15:35,662 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:35,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash 699960433, now seen corresponding path program 1 times [2022-11-03 02:15:35,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:15:35,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [99382010] [2022-11-03 02:15:35,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:35,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:15:35,667 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:15:35,668 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:15:35,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-03 02:15:38,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:39,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 2880 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:15:39,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:41,155 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:15:41,155 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:15:44,683 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:15:44,683 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:15:44,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [99382010] [2022-11-03 02:15:44,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [99382010] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:15:44,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1264616069] [2022-11-03 02:15:44,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:44,685 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:15:44,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:15:44,688 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:15:44,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-03 02:15:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:47,134 INFO L263 TraceCheckSpWp]: Trace formula consists of 2880 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:15:47,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:49,009 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:15:49,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:15:49,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1264616069] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:49,010 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:15:49,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:15:49,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848702493] [2022-11-03 02:15:49,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:49,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:49,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:15:49,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:49,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:15:49,013 INFO L87 Difference]: Start difference. First operand 3601 states and 5011 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:15:49,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:49,333 INFO L93 Difference]: Finished difference Result 7183 states and 10046 transitions. [2022-11-03 02:15:49,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:49,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 246 [2022-11-03 02:15:49,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:49,368 INFO L225 Difference]: With dead ends: 7183 [2022-11-03 02:15:49,368 INFO L226 Difference]: Without dead ends: 3601 [2022-11-03 02:15:49,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:15:49,390 INFO L413 NwaCegarLoop]: 2667 mSDtfsCounter, 2492 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2492 SdHoareTripleChecker+Valid, 2667 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:49,390 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2492 Valid, 2667 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:15:49,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-03 02:15:49,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3601. [2022-11-03 02:15:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2346 states have (on average 1.2344416027280478) internal successors, (2896), 2443 states have internal predecessors, (2896), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-03 02:15:49,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5009 transitions. [2022-11-03 02:15:49,662 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5009 transitions. Word has length 246 [2022-11-03 02:15:49,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:49,664 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5009 transitions. [2022-11-03 02:15:49,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:15:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5009 transitions. [2022-11-03 02:15:49,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-03 02:15:49,670 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:49,670 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:49,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:49,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-03 02:15:50,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:15:50,086 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:50,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:50,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1089311808, now seen corresponding path program 1 times [2022-11-03 02:15:50,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:15:50,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95229900] [2022-11-03 02:15:50,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:50,089 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:15:50,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:15:50,090 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:15:50,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-03 02:15:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:53,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:15:53,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:15:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:15:55,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:15:58,624 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:15:58,625 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:15:58,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95229900] [2022-11-03 02:15:58,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95229900] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:15:58,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [885319114] [2022-11-03 02:15:58,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:58,625 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:15:58,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:15:58,626 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:15:58,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-03 02:16:00,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:01,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:16:01,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:16:02,999 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:02,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [885319114] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:02,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:16:02,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:16:02,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105051639] [2022-11-03 02:16:03,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:03,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:03,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:16:03,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:03,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:03,002 INFO L87 Difference]: Start difference. First operand 3601 states and 5009 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:03,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:03,351 INFO L93 Difference]: Finished difference Result 7183 states and 10042 transitions. [2022-11-03 02:16:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:03,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 247 [2022-11-03 02:16:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:03,408 INFO L225 Difference]: With dead ends: 7183 [2022-11-03 02:16:03,408 INFO L226 Difference]: Without dead ends: 3601 [2022-11-03 02:16:03,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:03,430 INFO L413 NwaCegarLoop]: 2666 mSDtfsCounter, 2490 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2490 SdHoareTripleChecker+Valid, 2666 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:03,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2490 Valid, 2666 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:03,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-03 02:16:03,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3601. [2022-11-03 02:16:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2346 states have (on average 1.2335890878090368) internal successors, (2894), 2443 states have internal predecessors, (2894), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-03 02:16:03,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5007 transitions. [2022-11-03 02:16:03,740 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5007 transitions. Word has length 247 [2022-11-03 02:16:03,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:03,741 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5007 transitions. [2022-11-03 02:16:03,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:03,742 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5007 transitions. [2022-11-03 02:16:03,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-03 02:16:03,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:03,748 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:03,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:03,993 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:04,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:04,174 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:04,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:04,175 INFO L85 PathProgramCache]: Analyzing trace with hash -607659827, now seen corresponding path program 1 times [2022-11-03 02:16:04,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:04,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [132330056] [2022-11-03 02:16:04,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:04,177 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:04,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:04,178 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:04,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-03 02:16:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:07,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 2882 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:16:07,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:09,458 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:16:09,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:16:12,766 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:16:12,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:16:12,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [132330056] [2022-11-03 02:16:12,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [132330056] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:16:12,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1224492233] [2022-11-03 02:16:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:12,768 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:12,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:16:12,770 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:16:12,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-03 02:16:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:15,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 2882 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:16:15,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:17,234 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:16:17,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:17,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1224492233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:17,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:16:17,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:16:17,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217211177] [2022-11-03 02:16:17,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:17,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:17,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:16:17,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:17,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:17,238 INFO L87 Difference]: Start difference. First operand 3601 states and 5007 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:17,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:17,571 INFO L93 Difference]: Finished difference Result 7183 states and 10038 transitions. [2022-11-03 02:16:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:17,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 248 [2022-11-03 02:16:17,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:17,601 INFO L225 Difference]: With dead ends: 7183 [2022-11-03 02:16:17,601 INFO L226 Difference]: Without dead ends: 3601 [2022-11-03 02:16:17,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:17,627 INFO L413 NwaCegarLoop]: 2665 mSDtfsCounter, 2488 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2488 SdHoareTripleChecker+Valid, 2665 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:17,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2488 Valid, 2665 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:17,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-03 02:16:18,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3601. [2022-11-03 02:16:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2346 states have (on average 1.2327365728900255) internal successors, (2892), 2443 states have internal predecessors, (2892), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-03 02:16:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5005 transitions. [2022-11-03 02:16:18,058 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5005 transitions. Word has length 248 [2022-11-03 02:16:18,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:18,059 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5005 transitions. [2022-11-03 02:16:18,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5005 transitions. [2022-11-03 02:16:18,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-03 02:16:18,068 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:18,070 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:18,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:18,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:18,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:18,490 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:18,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1553166300, now seen corresponding path program 1 times [2022-11-03 02:16:18,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:18,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361191212] [2022-11-03 02:16:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:18,494 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:18,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:18,496 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:18,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-03 02:16:22,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:22,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 2883 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:16:22,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:24,001 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:16:24,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:16:27,363 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:16:27,364 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:16:27,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361191212] [2022-11-03 02:16:27,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361191212] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:16:27,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [99306511] [2022-11-03 02:16:27,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:27,365 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:27,365 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:16:27,366 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:16:27,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-03 02:16:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:30,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 2883 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:16:30,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:31,867 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:16:31,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:31,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [99306511] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:31,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:16:31,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:16:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648238120] [2022-11-03 02:16:31,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:31,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:31,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:16:31,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:31,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:31,871 INFO L87 Difference]: Start difference. First operand 3601 states and 5005 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:32,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:32,193 INFO L93 Difference]: Finished difference Result 7183 states and 10034 transitions. [2022-11-03 02:16:32,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:32,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 249 [2022-11-03 02:16:32,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:32,218 INFO L225 Difference]: With dead ends: 7183 [2022-11-03 02:16:32,218 INFO L226 Difference]: Without dead ends: 3601 [2022-11-03 02:16:32,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:32,240 INFO L413 NwaCegarLoop]: 2664 mSDtfsCounter, 2486 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2486 SdHoareTripleChecker+Valid, 2664 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:32,240 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2486 Valid, 2664 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-03 02:16:32,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3601. [2022-11-03 02:16:32,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2346 states have (on average 1.2318840579710144) internal successors, (2890), 2443 states have internal predecessors, (2890), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-03 02:16:32,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5003 transitions. [2022-11-03 02:16:32,713 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5003 transitions. Word has length 249 [2022-11-03 02:16:32,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:32,713 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5003 transitions. [2022-11-03 02:16:32,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:32,714 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5003 transitions. [2022-11-03 02:16:32,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-03 02:16:32,727 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:32,727 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:32,800 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:32,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:33,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:33,150 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:33,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:33,151 INFO L85 PathProgramCache]: Analyzing trace with hash -66183895, now seen corresponding path program 1 times [2022-11-03 02:16:33,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:33,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1314900777] [2022-11-03 02:16:33,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:33,153 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:33,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:33,156 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:33,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-03 02:16:36,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:36,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:16:36,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:16:38,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:16:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:16:41,637 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:16:41,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1314900777] [2022-11-03 02:16:41,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1314900777] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:16:41,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [760037806] [2022-11-03 02:16:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:41,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:41,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:16:41,642 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:16:41,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-03 02:16:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:44,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:16:44,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:46,275 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:16:46,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:46,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [760037806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:46,275 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:16:46,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:16:46,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833877948] [2022-11-03 02:16:46,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:46,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:16:46,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:16:46,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:16:46,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:46,278 INFO L87 Difference]: Start difference. First operand 3601 states and 5003 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:46,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:46,651 INFO L93 Difference]: Finished difference Result 7183 states and 10030 transitions. [2022-11-03 02:16:46,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:46,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 250 [2022-11-03 02:16:46,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:46,676 INFO L225 Difference]: With dead ends: 7183 [2022-11-03 02:16:46,677 INFO L226 Difference]: Without dead ends: 3601 [2022-11-03 02:16:46,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 747 GetRequests, 723 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:16:46,697 INFO L413 NwaCegarLoop]: 2663 mSDtfsCounter, 2484 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2484 SdHoareTripleChecker+Valid, 2663 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:46,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2484 Valid, 2663 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:16:46,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-03 02:16:47,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3601. [2022-11-03 02:16:47,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2346 states have (on average 1.2310315430520034) internal successors, (2888), 2443 states have internal predecessors, (2888), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-03 02:16:47,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 5001 transitions. [2022-11-03 02:16:47,193 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 5001 transitions. Word has length 250 [2022-11-03 02:16:47,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:47,195 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 5001 transitions. [2022-11-03 02:16:47,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:16:47,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 5001 transitions. [2022-11-03 02:16:47,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-03 02:16:47,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:47,200 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:47,293 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:47,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2022-11-03 02:16:47,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:47,614 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:47,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:47,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1388084216, now seen corresponding path program 1 times [2022-11-03 02:16:47,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:16:47,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2054200710] [2022-11-03 02:16:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:47,617 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:16:47,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:16:47,618 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:16:47,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-03 02:16:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:51,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2885 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:16:51,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:52,898 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:16:52,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:16:56,204 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:16:56,204 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:16:56,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2054200710] [2022-11-03 02:16:56,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2054200710] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:16:56,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [510492019] [2022-11-03 02:16:56,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:56,205 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:16:56,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:16:56,210 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:16:56,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-03 02:16:59,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:59,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 2885 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:16:59,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:17:01,079 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:01,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [510492019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:01,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:17:01,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:17:01,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798333620] [2022-11-03 02:17:01,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:01,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:01,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:01,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:01,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:17:01,082 INFO L87 Difference]: Start difference. First operand 3601 states and 5001 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:01,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:01,405 INFO L93 Difference]: Finished difference Result 7183 states and 10026 transitions. [2022-11-03 02:17:01,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:01,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 251 [2022-11-03 02:17:01,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:01,433 INFO L225 Difference]: With dead ends: 7183 [2022-11-03 02:17:01,434 INFO L226 Difference]: Without dead ends: 3601 [2022-11-03 02:17:01,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 750 GetRequests, 726 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:17:01,455 INFO L413 NwaCegarLoop]: 2662 mSDtfsCounter, 2482 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2482 SdHoareTripleChecker+Valid, 2662 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:01,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2482 Valid, 2662 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:17:01,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3601 states. [2022-11-03 02:17:01,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3601 to 3601. [2022-11-03 02:17:02,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3601 states, 2346 states have (on average 1.2301790281329923) internal successors, (2886), 2443 states have internal predecessors, (2886), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-03 02:17:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3601 states to 3601 states and 4999 transitions. [2022-11-03 02:17:02,028 INFO L78 Accepts]: Start accepts. Automaton has 3601 states and 4999 transitions. Word has length 251 [2022-11-03 02:17:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:02,029 INFO L495 AbstractCegarLoop]: Abstraction has 3601 states and 4999 transitions. [2022-11-03 02:17:02,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-03 02:17:02,029 INFO L276 IsEmpty]: Start isEmpty. Operand 3601 states and 4999 transitions. [2022-11-03 02:17:02,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-03 02:17:02,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:02,034 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:02,111 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:02,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:02,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:17:02,458 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:02,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:02,459 INFO L85 PathProgramCache]: Analyzing trace with hash -659727995, now seen corresponding path program 1 times [2022-11-03 02:17:02,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:02,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809889971] [2022-11-03 02:17:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:02,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:02,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:02,462 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:02,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-03 02:17:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:05,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:17:05,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:17:07,823 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:17:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:17:11,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:11,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809889971] [2022-11-03 02:17:11,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1809889971] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:17:11,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1263676127] [2022-11-03 02:17:11,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:11,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:17:11,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:17:11,180 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:17:11,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-03 02:17:14,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:14,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:17:14,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:14,472 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-03 02:17:14,472 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:14,473 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1263676127] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:14,473 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:17:14,473 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15, 13] total 27 [2022-11-03 02:17:14,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080900726] [2022-11-03 02:17:14,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:14,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:17:14,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:14,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:17:14,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2022-11-03 02:17:14,480 INFO L87 Difference]: Start difference. First operand 3601 states and 4999 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:17:15,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:15,231 INFO L93 Difference]: Finished difference Result 7215 states and 10029 transitions. [2022-11-03 02:17:15,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:17:15,232 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 252 [2022-11-03 02:17:15,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:15,253 INFO L225 Difference]: With dead ends: 7215 [2022-11-03 02:17:15,254 INFO L226 Difference]: Without dead ends: 3633 [2022-11-03 02:17:15,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 728 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:17:15,278 INFO L413 NwaCegarLoop]: 2682 mSDtfsCounter, 19 mSDsluCounter, 5321 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 8003 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:15,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 8003 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 02:17:15,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3633 states. [2022-11-03 02:17:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3633 to 3617. [2022-11-03 02:17:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3617 states, 2358 states have (on average 1.2307039864291773) internal successors, (2902), 2457 states have internal predecessors, (2902), 1053 states have call successors, (1053), 201 states have call predecessors, (1053), 205 states have return successors, (1068), 1021 states have call predecessors, (1068), 1053 states have call successors, (1068) [2022-11-03 02:17:15,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3617 states to 3617 states and 5023 transitions. [2022-11-03 02:17:15,854 INFO L78 Accepts]: Start accepts. Automaton has 3617 states and 5023 transitions. Word has length 252 [2022-11-03 02:17:15,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:15,855 INFO L495 AbstractCegarLoop]: Abstraction has 3617 states and 5023 transitions. [2022-11-03 02:17:15,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-03 02:17:15,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5023 transitions. [2022-11-03 02:17:15,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-03 02:17:15,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:15,860 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:15,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:16,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2022-11-03 02:17:16,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:17:16,274 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:16,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:16,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1593161124, now seen corresponding path program 1 times [2022-11-03 02:17:16,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:16,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136088301] [2022-11-03 02:17:16,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:16,277 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:16,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:16,278 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:16,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-03 02:17:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:20,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:17:20,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:17:21,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:17:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:17:25,193 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:25,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136088301] [2022-11-03 02:17:25,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136088301] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:17:25,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1258148809] [2022-11-03 02:17:25,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:25,194 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:17:25,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:17:25,196 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:17:25,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-03 02:17:28,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:28,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-03 02:17:28,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-03 02:17:28,398 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:28,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1258148809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:28,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:17:28,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15, 13] total 26 [2022-11-03 02:17:28,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096503227] [2022-11-03 02:17:28,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:28,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:28,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:28,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:28,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:17:28,400 INFO L87 Difference]: Start difference. First operand 3617 states and 5023 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 02:17:28,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:28,853 INFO L93 Difference]: Finished difference Result 7599 states and 10605 transitions. [2022-11-03 02:17:28,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:28,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 262 [2022-11-03 02:17:28,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:28,886 INFO L225 Difference]: With dead ends: 7599 [2022-11-03 02:17:28,886 INFO L226 Difference]: Without dead ends: 4001 [2022-11-03 02:17:28,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:17:28,909 INFO L413 NwaCegarLoop]: 2756 mSDtfsCounter, 205 mSDsluCounter, 2663 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 5419 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:28,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 5419 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:17:28,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2022-11-03 02:17:29,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 3619. [2022-11-03 02:17:29,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 2360 states have (on average 1.2309322033898304) internal successors, (2905), 2459 states have internal predecessors, (2905), 1053 states have call successors, (1053), 201 states have call predecessors, (1053), 205 states have return successors, (1068), 1021 states have call predecessors, (1068), 1053 states have call successors, (1068) [2022-11-03 02:17:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 5026 transitions. [2022-11-03 02:17:29,473 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 5026 transitions. Word has length 262 [2022-11-03 02:17:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:29,474 INFO L495 AbstractCegarLoop]: Abstraction has 3619 states and 5026 transitions. [2022-11-03 02:17:29,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 02:17:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5026 transitions. [2022-11-03 02:17:29,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-03 02:17:29,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:29,479 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:29,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:29,741 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:29,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:17:29,902 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:29,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:29,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1621661414, now seen corresponding path program 1 times [2022-11-03 02:17:29,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:29,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232730441] [2022-11-03 02:17:29,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:29,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:29,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:29,908 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:29,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-03 02:17:33,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:33,754 INFO L263 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:17:33,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:35,505 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:17:35,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:17:38,762 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:17:38,762 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:38,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232730441] [2022-11-03 02:17:38,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232730441] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:17:38,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1602391032] [2022-11-03 02:17:38,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:38,763 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:17:38,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:17:38,764 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:17:38,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-03 02:17:41,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:41,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 3008 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-03 02:17:41,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:43,785 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:17:43,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:17:43,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1602391032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:17:43,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:17:43,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:17:43,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187678294] [2022-11-03 02:17:43,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:17:43,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:17:43,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:17:43,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:17:43,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:17:43,789 INFO L87 Difference]: Start difference. First operand 3619 states and 5026 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:17:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:17:44,657 INFO L93 Difference]: Finished difference Result 10259 states and 14635 transitions. [2022-11-03 02:17:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:17:44,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 262 [2022-11-03 02:17:44,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:17:44,716 INFO L225 Difference]: With dead ends: 10259 [2022-11-03 02:17:44,716 INFO L226 Difference]: Without dead ends: 6659 [2022-11-03 02:17:44,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:17:44,742 INFO L413 NwaCegarLoop]: 3427 mSDtfsCounter, 2092 mSDsluCounter, 2678 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 6105 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:17:44,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 6105 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:17:44,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6659 states. [2022-11-03 02:17:45,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6659 to 6649. [2022-11-03 02:17:45,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6649 states, 4326 states have (on average 1.227693018955155) internal successors, (5311), 4522 states have internal predecessors, (5311), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-03 02:17:45,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6649 states to 6649 states and 9571 transitions. [2022-11-03 02:17:45,790 INFO L78 Accepts]: Start accepts. Automaton has 6649 states and 9571 transitions. Word has length 262 [2022-11-03 02:17:45,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:17:45,791 INFO L495 AbstractCegarLoop]: Abstraction has 6649 states and 9571 transitions. [2022-11-03 02:17:45,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:17:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand 6649 states and 9571 transitions. [2022-11-03 02:17:45,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-03 02:17:45,796 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:17:45,797 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:17:45,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:46,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-03 02:17:46,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:17:46,222 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:17:46,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:17:46,223 INFO L85 PathProgramCache]: Analyzing trace with hash 641954591, now seen corresponding path program 1 times [2022-11-03 02:17:46,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:17:46,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [188028013] [2022-11-03 02:17:46,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:46,226 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:17:46,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:17:46,228 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:17:46,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-03 02:17:49,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:49,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:17:49,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:17:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:17:51,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:17:54,971 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:17:54,971 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:17:54,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [188028013] [2022-11-03 02:17:54,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [188028013] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:17:54,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [586855398] [2022-11-03 02:17:54,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:17:54,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:17:54,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:17:54,973 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:17:54,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-03 02:17:57,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:17:58,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:17:58,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:00,183 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:18:00,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:18:00,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [586855398] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:00,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:18:00,184 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:18:00,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116229994] [2022-11-03 02:18:00,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:00,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:00,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:18:00,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:00,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:00,186 INFO L87 Difference]: Start difference. First operand 6649 states and 9571 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:00,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:00,931 INFO L93 Difference]: Finished difference Result 13279 states and 19271 transitions. [2022-11-03 02:18:00,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:00,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 263 [2022-11-03 02:18:00,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:00,978 INFO L225 Difference]: With dead ends: 13279 [2022-11-03 02:18:00,979 INFO L226 Difference]: Without dead ends: 6649 [2022-11-03 02:18:01,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:01,019 INFO L413 NwaCegarLoop]: 2661 mSDtfsCounter, 2469 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 2661 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:01,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 2661 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:18:01,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2022-11-03 02:18:01,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 6649. [2022-11-03 02:18:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6649 states, 4326 states have (on average 1.226768377253814) internal successors, (5307), 4522 states have internal predecessors, (5307), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-03 02:18:01,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6649 states to 6649 states and 9567 transitions. [2022-11-03 02:18:01,927 INFO L78 Accepts]: Start accepts. Automaton has 6649 states and 9567 transitions. Word has length 263 [2022-11-03 02:18:01,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:01,928 INFO L495 AbstractCegarLoop]: Abstraction has 6649 states and 9567 transitions. [2022-11-03 02:18:01,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:01,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6649 states and 9567 transitions. [2022-11-03 02:18:01,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-03 02:18:01,933 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:01,933 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:02,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:02,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2022-11-03 02:18:02,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:18:02,346 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:02,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:02,347 INFO L85 PathProgramCache]: Analyzing trace with hash -2085876682, now seen corresponding path program 1 times [2022-11-03 02:18:02,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:18:02,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1103847652] [2022-11-03 02:18:02,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:02,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:18:02,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:18:02,352 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:18:02,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-03 02:18:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:06,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:18:06,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:07,799 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:18:07,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:18:11,015 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:18:11,016 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:18:11,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1103847652] [2022-11-03 02:18:11,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1103847652] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:18:11,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1145442946] [2022-11-03 02:18:11,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:11,016 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:18:11,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:18:11,017 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:18:11,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-11-03 02:18:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:14,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:18:14,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:16,177 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:18:16,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:18:16,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1145442946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:16,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:18:16,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:18:16,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076675753] [2022-11-03 02:18:16,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:16,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:16,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:18:16,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:16,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:16,180 INFO L87 Difference]: Start difference. First operand 6649 states and 9567 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:16,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:16,930 INFO L93 Difference]: Finished difference Result 13279 states and 19263 transitions. [2022-11-03 02:18:16,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:16,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 264 [2022-11-03 02:18:16,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:17,062 INFO L225 Difference]: With dead ends: 13279 [2022-11-03 02:18:17,064 INFO L226 Difference]: Without dead ends: 6649 [2022-11-03 02:18:17,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 765 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:17,101 INFO L413 NwaCegarLoop]: 2660 mSDtfsCounter, 2467 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2467 SdHoareTripleChecker+Valid, 2660 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:17,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2467 Valid, 2660 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:18:17,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2022-11-03 02:18:17,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 6649. [2022-11-03 02:18:17,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6649 states, 4326 states have (on average 1.2258437355524734) internal successors, (5303), 4522 states have internal predecessors, (5303), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-03 02:18:17,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6649 states to 6649 states and 9563 transitions. [2022-11-03 02:18:17,997 INFO L78 Accepts]: Start accepts. Automaton has 6649 states and 9563 transitions. Word has length 264 [2022-11-03 02:18:17,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:17,999 INFO L495 AbstractCegarLoop]: Abstraction has 6649 states and 9563 transitions. [2022-11-03 02:18:17,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:17,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6649 states and 9563 transitions. [2022-11-03 02:18:18,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-03 02:18:18,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:18,004 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:18,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:18,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:18,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:18:18,422 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:18,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash -634783621, now seen corresponding path program 1 times [2022-11-03 02:18:18,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:18:18,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [113451877] [2022-11-03 02:18:18,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:18,425 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:18:18,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:18:18,426 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:18:18,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-03 02:18:21,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:22,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 3011 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:18:22,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:18:23,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:18:27,273 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:18:27,273 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:18:27,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [113451877] [2022-11-03 02:18:27,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [113451877] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:18:27,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [229256719] [2022-11-03 02:18:27,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:27,274 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:18:27,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:18:27,275 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:18:27,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-03 02:18:30,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:30,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 3011 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:18:30,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:32,648 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:18:32,648 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:18:32,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [229256719] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:32,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:18:32,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:18:32,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649350128] [2022-11-03 02:18:32,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:32,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:32,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:18:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:32,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:32,651 INFO L87 Difference]: Start difference. First operand 6649 states and 9563 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:33,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:33,475 INFO L93 Difference]: Finished difference Result 13279 states and 19255 transitions. [2022-11-03 02:18:33,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:33,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 265 [2022-11-03 02:18:33,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:33,511 INFO L225 Difference]: With dead ends: 13279 [2022-11-03 02:18:33,511 INFO L226 Difference]: Without dead ends: 6649 [2022-11-03 02:18:33,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 768 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:33,544 INFO L413 NwaCegarLoop]: 2659 mSDtfsCounter, 2465 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2465 SdHoareTripleChecker+Valid, 2659 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:33,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2465 Valid, 2659 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:18:33,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2022-11-03 02:18:34,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 6649. [2022-11-03 02:18:34,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6649 states, 4326 states have (on average 1.2249190938511327) internal successors, (5299), 4522 states have internal predecessors, (5299), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-03 02:18:34,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6649 states to 6649 states and 9559 transitions. [2022-11-03 02:18:34,627 INFO L78 Accepts]: Start accepts. Automaton has 6649 states and 9559 transitions. Word has length 265 [2022-11-03 02:18:34,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:34,628 INFO L495 AbstractCegarLoop]: Abstraction has 6649 states and 9559 transitions. [2022-11-03 02:18:34,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 2 states have internal predecessors, (137), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:34,629 INFO L276 IsEmpty]: Start isEmpty. Operand 6649 states and 9559 transitions. [2022-11-03 02:18:34,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-11-03 02:18:34,633 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:34,633 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:34,674 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:34,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (29)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:35,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:18:35,062 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:35,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:35,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1513944914, now seen corresponding path program 1 times [2022-11-03 02:18:35,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:18:35,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1612274520] [2022-11-03 02:18:35,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:35,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:18:35,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:18:35,066 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:18:35,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-03 02:18:38,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:38,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:18:38,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:40,582 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:18:40,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:18:43,755 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:18:43,755 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:18:43,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1612274520] [2022-11-03 02:18:43,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1612274520] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:18:43,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1986467050] [2022-11-03 02:18:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:43,756 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:18:43,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:18:43,757 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:18:43,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-11-03 02:18:47,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:47,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:18:47,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:18:49,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:18:49,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1986467050] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:18:49,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:18:49,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:18:49,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562646655] [2022-11-03 02:18:49,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:18:49,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:18:49,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:18:49,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:18:49,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:49,119 INFO L87 Difference]: Start difference. First operand 6649 states and 9559 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:18:50,001 INFO L93 Difference]: Finished difference Result 13279 states and 19247 transitions. [2022-11-03 02:18:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:18:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 266 [2022-11-03 02:18:50,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:18:50,034 INFO L225 Difference]: With dead ends: 13279 [2022-11-03 02:18:50,034 INFO L226 Difference]: Without dead ends: 6649 [2022-11-03 02:18:50,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 795 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:18:50,063 INFO L413 NwaCegarLoop]: 2658 mSDtfsCounter, 2463 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 2658 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:18:50,064 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2463 Valid, 2658 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:18:50,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2022-11-03 02:18:51,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 6649. [2022-11-03 02:18:51,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6649 states, 4326 states have (on average 1.2239944521497919) internal successors, (5295), 4522 states have internal predecessors, (5295), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-03 02:18:51,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6649 states to 6649 states and 9555 transitions. [2022-11-03 02:18:51,227 INFO L78 Accepts]: Start accepts. Automaton has 6649 states and 9555 transitions. Word has length 266 [2022-11-03 02:18:51,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:18:51,228 INFO L495 AbstractCegarLoop]: Abstraction has 6649 states and 9555 transitions. [2022-11-03 02:18:51,229 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:18:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 6649 states and 9555 transitions. [2022-11-03 02:18:51,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-03 02:18:51,233 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:18:51,234 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:18:51,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:51,513 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-03 02:18:51,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:18:51,650 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:18:51,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:18:51,651 INFO L85 PathProgramCache]: Analyzing trace with hash -480430633, now seen corresponding path program 1 times [2022-11-03 02:18:51,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:18:51,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [484937506] [2022-11-03 02:18:51,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:18:51,654 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:18:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:18:51,655 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:18:51,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-03 02:18:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:18:55,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:18:55,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:18:57,269 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:18:57,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:19:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:19:00,485 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:19:00,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [484937506] [2022-11-03 02:19:00,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [484937506] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:19:00,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1173602330] [2022-11-03 02:19:00,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:00,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:19:00,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:19:00,487 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:19:00,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-11-03 02:19:04,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:04,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:19:04,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:06,042 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:19:06,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:19:06,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1173602330] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:06,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:19:06,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-03 02:19:06,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786919441] [2022-11-03 02:19:06,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:06,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:19:06,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:19:06,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:19:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:19:06,046 INFO L87 Difference]: Start difference. First operand 6649 states and 9555 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:19:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:06,932 INFO L93 Difference]: Finished difference Result 13279 states and 19239 transitions. [2022-11-03 02:19:06,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:19:06,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 267 [2022-11-03 02:19:06,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:06,967 INFO L225 Difference]: With dead ends: 13279 [2022-11-03 02:19:06,967 INFO L226 Difference]: Without dead ends: 6649 [2022-11-03 02:19:07,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 774 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-03 02:19:07,000 INFO L413 NwaCegarLoop]: 2657 mSDtfsCounter, 2461 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 2657 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:07,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 2657 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:19:07,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6649 states. [2022-11-03 02:19:07,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6649 to 6649. [2022-11-03 02:19:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6649 states, 4326 states have (on average 1.2230698104484512) internal successors, (5291), 4522 states have internal predecessors, (5291), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-03 02:19:07,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6649 states to 6649 states and 9551 transitions. [2022-11-03 02:19:07,912 INFO L78 Accepts]: Start accepts. Automaton has 6649 states and 9551 transitions. Word has length 267 [2022-11-03 02:19:07,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:07,913 INFO L495 AbstractCegarLoop]: Abstraction has 6649 states and 9551 transitions. [2022-11-03 02:19:07,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-03 02:19:07,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6649 states and 9551 transitions. [2022-11-03 02:19:07,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2022-11-03 02:19:07,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:19:07,918 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:19:07,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:08,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:08,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt,33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 02:19:08,346 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:19:08,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:19:08,346 INFO L85 PathProgramCache]: Analyzing trace with hash -451801482, now seen corresponding path program 1 times [2022-11-03 02:19:08,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 02:19:08,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402024767] [2022-11-03 02:19:08,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:08,349 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 02:19:08,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 02:19:08,350 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 02:19:08,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Waiting until timeout for monitored process [2022-11-03 02:19:12,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:12,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-03 02:19:12,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:14,042 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-03 02:19:14,042 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:19:17,263 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-03 02:19:17,264 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 02:19:17,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402024767] [2022-11-03 02:19:17,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402024767] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:19:17,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [952920813] [2022-11-03 02:19:17,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:19:17,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-03 02:19:17,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 [2022-11-03 02:19:17,266 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-03 02:19:17,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2022-11-03 02:19:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:19:20,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:19:20,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:19:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-03 02:19:21,454 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:19:21,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [952920813] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:19:21,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-03 02:19:21,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 13] total 28 [2022-11-03 02:19:21,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159087441] [2022-11-03 02:19:21,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:19:21,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:19:21,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 02:19:21,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:19:21,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-11-03 02:19:21,457 INFO L87 Difference]: Start difference. First operand 6649 states and 9551 transitions. Second operand has 5 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 02:19:22,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:19:22,811 INFO L93 Difference]: Finished difference Result 13205 states and 19148 transitions. [2022-11-03 02:19:22,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:19:22,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 267 [2022-11-03 02:19:22,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:19:22,819 INFO L225 Difference]: With dead ends: 13205 [2022-11-03 02:19:22,820 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 02:19:22,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-11-03 02:19:22,874 INFO L413 NwaCegarLoop]: 2633 mSDtfsCounter, 9 mSDsluCounter, 7888 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10521 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:19:22,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 10521 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 02:19:22,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 02:19:22,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 02:19:22,876 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) [2022-11-03 02:19:22,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 02:19:22,881 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 267 [2022-11-03 02:19:22,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:19:22,881 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 02:19:22,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-03 02:19:22,881 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 02:19:22,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 02:19:22,884 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 02:19:22,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (35)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:23,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2022-11-03 02:19:23,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3,36 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ea147dc-0317-4184-87e5-2f4e62b4d1e0/bin/utaipan-7li7fVZpFI/cvc4 --incremental --print-success --lang smt [2022-11-03 02:19:23,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.