./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba --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 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 --- 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-b5237d8 [2022-11-22 02:21:07,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:21:07,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:21:07,137 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:21:07,138 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:21:07,139 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:21:07,140 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:21:07,142 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:21:07,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:21:07,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:21:07,146 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:21:07,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:21:07,148 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:21:07,149 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:21:07,150 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:21:07,151 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:21:07,152 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:21:07,153 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:21:07,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:21:07,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:21:07,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:21:07,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:21:07,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:21:07,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:21:07,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:21:07,177 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:21:07,177 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:21:07,178 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:21:07,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:21:07,181 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:21:07,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:21:07,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:21:07,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:21:07,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:21:07,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:21:07,189 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:21:07,190 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:21:07,190 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:21:07,190 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:21:07,192 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:21:07,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:21:07,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 02:21:07,231 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:21:07,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:21:07,231 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:21:07,232 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:21:07,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:21:07,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:21:07,233 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:21:07,233 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:21:07,233 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:21:07,233 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:21:07,234 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:21:07,234 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:21:07,234 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:21:07,234 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:21:07,234 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:21:07,235 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:21:07,235 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:21:07,235 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:21:07,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:21:07,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:21:07,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:21:07,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:21:07,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:21:07,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:21:07,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:21:07,237 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:21:07,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:21:07,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:21:07,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:21:07,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:21:07,238 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:21:07,238 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:21:07,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:21:07,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:21:07,239 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:21:07,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:21:07,239 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:21:07,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:21:07,240 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_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4295d1eb99eb4c4e306792d8730363a971cf6332e7c089b8c1be6cbddd5edcb9 [2022-11-22 02:21:07,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:21:07,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:21:07,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:21:07,572 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:21:07,572 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:21:07,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2022-11-22 02:21:10,586 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:21:11,413 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:21:11,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2022-11-22 02:21:11,506 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/data/0c99c917a/dc90a178871d46ef813c474be94cc785/FLAGbff41b9f6 [2022-11-22 02:21:11,527 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/data/0c99c917a/dc90a178871d46ef813c474be94cc785 [2022-11-22 02:21:11,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:21:11,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:21:11,538 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:21:11,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:21:11,543 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:21:11,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:21:11" (1/1) ... [2022-11-22 02:21:11,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1465bd05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:11, skipping insertion in model container [2022-11-22 02:21:11,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:21:11" (1/1) ... [2022-11-22 02:21:11,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:21:11,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:21:16,427 WARN L237 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_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2022-11-22 02:21:16,432 WARN L237 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_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2022-11-22 02:21:16,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:21:16,551 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:21:17,092 WARN L237 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_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487689,487702] [2022-11-22 02:21:17,092 WARN L237 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_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i[487834,487847] [2022-11-22 02:21:17,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:21:17,500 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:21:17,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17 WrapperNode [2022-11-22 02:21:17,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:21:17,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:21:17,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:21:17,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:21:17,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:17,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:17,987 INFO L138 Inliner]: procedures = 639, calls = 3635, calls flagged for inlining = 316, calls inlined = 281, statements flattened = 8259 [2022-11-22 02:21:17,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:21:17,989 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:21:17,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:21:17,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:21:17,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:17,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:21:18,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:21:18,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:21:18,420 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:21:18,420 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (1/1) ... [2022-11-22 02:21:18,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:21:18,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:21:18,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:21:18,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:21:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ipv6_hdr [2022-11-22 02:21:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ipv6_hdr [2022-11-22 02:21:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-22 02:21:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-22 02:21:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-22 02:21:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-22 02:21:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_0_6 [2022-11-22 02:21:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_0_6 [2022-11-22 02:21:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-22 02:21:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-22 02:21:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-22 02:21:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-22 02:21:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-22 02:21:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-22 02:21:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_function_pointers_vf [2022-11-22 02:21:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_function_pointers_vf [2022-11-22 02:21:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_page [2022-11-22 02:21:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_page [2022-11-22 02:21:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-22 02:21:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-22 02:21:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-22 02:21:18,509 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-22 02:21:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-22 02:21:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-22 02:21:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_alloc_rx_buffers [2022-11-22 02:21:18,510 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_alloc_rx_buffers [2022-11-22 02:21:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-22 02:21:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-22 02:21:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_mac_addr_vf [2022-11-22 02:21:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_mac_addr_vf [2022-11-22 02:21:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_close [2022-11-22 02:21:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_close [2022-11-22 02:21:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-22 02:21:18,512 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-22 02:21:18,512 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_reset_hw_vf [2022-11-22 02:21:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_reset_hw_vf [2022-11-22 02:21:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_maybe_stop_tx [2022-11-22 02:21:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_maybe_stop_tx [2022-11-22 02:21:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-22 02:21:18,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-22 02:21:18,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-22 02:21:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-22 02:21:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-22 02:21:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-22 02:21:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-22 02:21:18,514 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-22 02:21:18,514 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_irq [2022-11-22 02:21:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_irq [2022-11-22 02:21:18,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-22 02:21:18,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-22 02:21:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-22 02:21:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-22 02:21:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_suspend [2022-11-22 02:21:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_suspend [2022-11-22 02:21:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:21:18,516 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-22 02:21:18,516 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-22 02:21:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-22 02:21:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-22 02:21:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-22 02:21:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-22 02:21:18,517 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-22 02:21:18,517 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-22 02:21:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-22 02:21:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-22 02:21:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-22 02:21:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_assign_vector [2022-11-22 02:21:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_assign_vector [2022-11-22 02:21:18,518 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-22 02:21:18,518 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-22 02:21:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-22 02:21:18,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-22 02:21:18,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-22 02:21:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_desc_unused [2022-11-22 02:21:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_desc_unused [2022-11-22 02:21:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-22 02:21:18,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-22 02:21:18,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:21:18,521 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_netpoll [2022-11-22 02:21:18,521 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_netpoll [2022-11-22 02:21:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-22 02:21:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-22 02:21:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-22 02:21:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-22 02:21:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset_interrupt_capability [2022-11-22 02:21:18,522 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset_interrupt_capability [2022-11-22 02:21:18,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-22 02:21:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-22 02:21:18,523 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_msg_vf [2022-11-22 02:21:18,523 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_msg_vf [2022-11-22 02:21:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-22 02:21:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-22 02:21:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-22 02:21:18,524 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-22 02:21:18,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2022-11-22 02:21:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_igbvf_exit_module_19_2 [2022-11-22 02:21:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-22 02:21:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-22 02:21:18,525 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_tx_resources [2022-11-22 02:21:18,525 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_tx_resources [2022-11-22 02:21:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_offset [2022-11-22 02:21:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_offset [2022-11-22 02:21:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-22 02:21:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-22 02:21:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-22 02:21:18,526 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-22 02:21:18,526 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-11-22 02:21:18,527 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-11-22 02:21:18,528 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-22 02:21:18,530 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-22 02:21:18,531 INFO L130 BoogieDeclarations]: Found specification of procedure __udelay [2022-11-22 02:21:18,531 INFO L138 BoogieDeclarations]: Found implementation of procedure __udelay [2022-11-22 02:21:18,532 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2022-11-22 02:21:18,533 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2022-11-22 02:21:18,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-22 02:21:18,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-22 02:21:18,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-22 02:21:18,535 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-22 02:21:18,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-22 02:21:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-22 02:21:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2022-11-22 02:21:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-22 02:21:18,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-22 02:21:18,541 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2022-11-22 02:21:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2022-11-22 02:21:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure_msix [2022-11-22 02:21:18,542 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure_msix [2022-11-22 02:21:18,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:21:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_open [2022-11-22 02:21:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_open [2022-11-22 02:21:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-22 02:21:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-22 02:21:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-22 02:21:18,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-22 02:21:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-22 02:21:18,543 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:21:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-22 02:21:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-22 02:21:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-22 02:21:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_nway_reset [2022-11-22 02:21:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_nway_reset [2022-11-22 02:21:18,544 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reset [2022-11-22 02:21:18,544 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reset [2022-11-22 02:21:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:21:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-22 02:21:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-22 02:21:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-22 02:21:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_write_posted_mbx [2022-11-22 02:21:18,545 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_write_posted_mbx [2022-11-22 02:21:18,545 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-22 02:21:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-22 02:21:18,546 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_enable [2022-11-22 02:21:18,546 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_enable [2022-11-22 02:21:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-22 02:21:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-22 02:21:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-22 02:21:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-22 02:21:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_reinit_locked [2022-11-22 02:21:18,547 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_reinit_locked [2022-11-22 02:21:18,547 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-22 02:21:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-22 02:21:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-22 02:21:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-22 02:21:18,548 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_update_stats [2022-11-22 02:21:18,548 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_update_stats [2022-11-22 02:21:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_vlan_rx_add_vid [2022-11-22 02:21:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_vlan_rx_add_vid [2022-11-22 02:21:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-22 02:21:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-22 02:21:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-22 02:21:18,549 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-22 02:21:18,549 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_bit_vf [2022-11-22 02:21:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_bit_vf [2022-11-22 02:21:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_init_hw_vf [2022-11-22 02:21:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_init_hw_vf [2022-11-22 02:21:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:21:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:21:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-22 02:21:18,550 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-22 02:21:18,550 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_ack [2022-11-22 02:21:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_ack [2022-11-22 02:21:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-22 02:21:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-22 02:21:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-22 02:21:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-22 02:21:18,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-22 02:21:18,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-22 02:21:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 02:21:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-22 02:21:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_rar_set_vf [2022-11-22 02:21:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_rar_set_vf [2022-11-22 02:21:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-22 02:21:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-22 02:21:18,552 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-22 02:21:18,552 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-22 02:21:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-22 02:21:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-22 02:21:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_down [2022-11-22 02:21:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_down [2022-11-22 02:21:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-22 02:21:18,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-22 02:21:18,553 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_regs_len [2022-11-22 02:21:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_regs_len [2022-11-22 02:21:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_irq [2022-11-22 02:21:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_irq [2022-11-22 02:21:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-22 02:21:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-22 02:21:18,554 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-22 02:21:18,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-22 02:21:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_link_vf [2022-11-22 02:21:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_link_vf [2022-11-22 02:21:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-22 02:21:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-22 02:21:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-22 02:21:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-22 02:21:18,555 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2022-11-22 02:21:18,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2022-11-22 02:21:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-22 02:21:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-22 02:21:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_tx_ring [2022-11-22 02:21:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_tx_ring [2022-11-22 02:21:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_v2p_mailbox [2022-11-22 02:21:18,556 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_v2p_mailbox [2022-11-22 02:21:18,556 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-22 02:21:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-22 02:21:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2022-11-22 02:21:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2022-11-22 02:21:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-22 02:21:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-22 02:21:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:21:18,557 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-22 02:21:18,557 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-22 02:21:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_remove [2022-11-22 02:21:18,558 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_remove [2022-11-22 02:21:18,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-22 02:21:18,559 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-22 02:21:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-22 02:21:18,563 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-22 02:21:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_irq_disable [2022-11-22 02:21:18,563 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_irq_disable [2022-11-22 02:21:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-22 02:21:18,563 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_configure [2022-11-22 02:21:18,563 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_configure [2022-11-22 02:21:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_rx_resources [2022-11-22 02:21:18,564 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_rx_resources [2022-11-22 02:21:18,564 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_clean_rx_ring [2022-11-22 02:21:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_clean_rx_ring [2022-11-22 02:21:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-22 02:21:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~s32~0 [2022-11-22 02:21:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_obtain_mbx_lock_vf [2022-11-22 02:21:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_obtain_mbx_lock_vf [2022-11-22 02:21:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure is_zero_ether_addr [2022-11-22 02:21:18,566 INFO L138 BoogieDeclarations]: Found implementation of procedure is_zero_ether_addr [2022-11-22 02:21:18,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-22 02:21:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_check_for_ack_vf [2022-11-22 02:21:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_check_for_ack_vf [2022-11-22 02:21:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-22 02:21:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-22 02:21:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-22 02:21:18,567 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-22 02:21:18,567 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-22 02:21:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-22 02:21:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-22 02:21:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-22 02:21:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_request_irq [2022-11-22 02:21:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_request_irq [2022-11-22 02:21:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_resume [2022-11-22 02:21:18,568 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_resume [2022-11-22 02:21:18,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-22 02:21:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-22 02:21:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-22 02:21:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-22 02:21:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-22 02:21:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-22 02:21:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_put_txbuf [2022-11-22 02:21:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_put_txbuf [2022-11-22 02:21:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-22 02:21:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~u16~0~TO~~s32~0 [2022-11-22 02:21:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_poll_for_msg [2022-11-22 02:21:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_poll_for_msg [2022-11-22 02:21:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-11-22 02:21:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-11-22 02:21:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_nonatomic [2022-11-22 02:21:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_nonatomic [2022-11-22 02:21:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-22 02:21:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-22 02:21:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-22 02:21:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-22 02:21:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_shutdown [2022-11-22 02:21:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_shutdown [2022-11-22 02:21:18,571 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-22 02:21:18,571 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-22 02:21:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-22 02:21:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-22 02:21:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_setup_tx_resources [2022-11-22 02:21:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_setup_tx_resources [2022-11-22 02:21:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-22 02:21:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-22 02:21:18,572 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_get_eeprom_len [2022-11-22 02:21:18,572 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_get_eeprom_len [2022-11-22 02:21:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:21:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2022-11-22 02:21:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u16~0~X~~bool~0~TO~~s32~0 [2022-11-22 02:21:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-22 02:21:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-22 02:21:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:21:18,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-22 02:21:18,573 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device_mem [2022-11-22 02:21:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device_mem [2022-11-22 02:21:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-22 02:21:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-22 02:21:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-22 02:21:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-22 02:21:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask_and_coherent [2022-11-22 02:21:18,574 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask_and_coherent [2022-11-22 02:21:18,574 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_io_resume [2022-11-22 02:21:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_io_resume [2022-11-22 02:21:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_free_rx_resources [2022-11-22 02:21:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_free_rx_resources [2022-11-22 02:21:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_2_6 [2022-11-22 02:21:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_2_6 [2022-11-22 02:21:18,575 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_set_multi [2022-11-22 02:21:18,575 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_set_multi [2022-11-22 02:21:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-22 02:21:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-22 02:21:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_tx_timeout [2022-11-22 02:21:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_tx_timeout [2022-11-22 02:21:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-22 02:21:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-22 02:21:18,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 02:21:18,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-22 02:21:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure e1000_read_posted_mbx [2022-11-22 02:21:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure e1000_read_posted_mbx [2022-11-22 02:21:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_automaton_state_1_6 [2022-11-22 02:21:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_automaton_state_1_6 [2022-11-22 02:21:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-11-22 02:21:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-11-22 02:21:18,577 INFO L130 BoogieDeclarations]: Found specification of procedure igbvf_up [2022-11-22 02:21:18,577 INFO L138 BoogieDeclarations]: Found implementation of procedure igbvf_up [2022-11-22 02:21:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-22 02:21:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-22 02:21:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:21:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-22 02:21:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-22 02:21:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-22 02:21:18,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-22 02:21:18,578 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-22 02:21:20,096 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:21:20,121 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:21:20,497 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-22 02:21:28,830 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-22 02:21:29,089 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:21:31,439 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:21:31,439 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 02:21:31,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:21:31 BoogieIcfgContainer [2022-11-22 02:21:31,447 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:21:31,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:21:31,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:21:31,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:21:31,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:21:11" (1/3) ... [2022-11-22 02:21:31,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63703fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:21:31, skipping insertion in model container [2022-11-22 02:21:31,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:21:17" (2/3) ... [2022-11-22 02:21:31,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63703fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:21:31, skipping insertion in model container [2022-11-22 02:21:31,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:21:31" (3/3) ... [2022-11-22 02:21:31,457 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-intel-igbvf-igbvf.cil.i [2022-11-22 02:21:31,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:21:31,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-22 02:21:31,596 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:21:31,604 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;@66b119da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:21:31,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-22 02:21:31,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 2300 states, 1350 states have (on average 1.2762962962962963) internal successors, (1723), 1392 states have internal predecessors, (1723), 784 states have call successors, (784), 165 states have call predecessors, (784), 164 states have return successors, (776), 762 states have call predecessors, (776), 776 states have call successors, (776) [2022-11-22 02:21:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-11-22 02:21:31,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:31,666 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:31,670 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:21:31,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:31,678 INFO L85 PathProgramCache]: Analyzing trace with hash -123986788, now seen corresponding path program 1 times [2022-11-22 02:21:31,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:31,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771563691] [2022-11-22 02:21:31,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:31,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:32,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2022-11-22 02:21:32,874 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:32,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771563691] [2022-11-22 02:21:32,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771563691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:32,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:32,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:21:32,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802138331] [2022-11-22 02:21:32,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:32,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:21:32,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:32,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:21:32,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:21:32,921 INFO L87 Difference]: Start difference. First operand has 2300 states, 1350 states have (on average 1.2762962962962963) internal successors, (1723), 1392 states have internal predecessors, (1723), 784 states have call successors, (784), 165 states have call predecessors, (784), 164 states have return successors, (776), 762 states have call predecessors, (776), 776 states have call successors, (776) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 02:21:34,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:39,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:40,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:40,370 INFO L93 Difference]: Finished difference Result 6133 states and 8793 transitions. [2022-11-22 02:21:40,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:21:40,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 282 [2022-11-22 02:21:40,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:40,414 INFO L225 Difference]: With dead ends: 6133 [2022-11-22 02:21:40,414 INFO L226 Difference]: Without dead ends: 3815 [2022-11-22 02:21:40,446 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 [2022-11-22 02:21:40,451 INFO L413 NwaCegarLoop]: 3426 mSDtfsCounter, 2228 mSDsluCounter, 2787 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2228 SdHoareTripleChecker+Valid, 6213 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:40,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2228 Valid, 6213 Invalid, 965 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [19 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-11-22 02:21:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3815 states. [2022-11-22 02:21:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3815 to 3810. [2022-11-22 02:21:40,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3810 states, 2287 states have (on average 1.2719720157411456) internal successors, (2909), 2343 states have internal predecessors, (2909), 1236 states have call successors, (1236), 285 states have call predecessors, (1236), 285 states have return successors, (1236), 1217 states have call predecessors, (1236), 1236 states have call successors, (1236) [2022-11-22 02:21:40,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 5381 transitions. [2022-11-22 02:21:40,824 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 5381 transitions. Word has length 282 [2022-11-22 02:21:40,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:40,828 INFO L495 AbstractCegarLoop]: Abstraction has 3810 states and 5381 transitions. [2022-11-22 02:21:40,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-22 02:21:40,829 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 5381 transitions. [2022-11-22 02:21:40,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 295 [2022-11-22 02:21:40,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:40,850 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:40,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:21:40,850 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:21:40,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:40,851 INFO L85 PathProgramCache]: Analyzing trace with hash -61436520, now seen corresponding path program 1 times [2022-11-22 02:21:40,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:40,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455910850] [2022-11-22 02:21:40,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:40,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:41,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2256 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2256 trivial. 0 not checked. [2022-11-22 02:21:41,554 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:41,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455910850] [2022-11-22 02:21:41,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455910850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:41,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:41,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:21:41,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489456474] [2022-11-22 02:21:41,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:41,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:21:41,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:41,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:21:41,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:21:41,562 INFO L87 Difference]: Start difference. First operand 3810 states and 5381 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 02:21:45,094 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 [] [2022-11-22 02:21:46,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:21:49,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:49,952 INFO L93 Difference]: Finished difference Result 9530 states and 13364 transitions. [2022-11-22 02:21:49,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:21:49,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 294 [2022-11-22 02:21:49,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:49,990 INFO L225 Difference]: With dead ends: 9530 [2022-11-22 02:21:49,990 INFO L226 Difference]: Without dead ends: 5769 [2022-11-22 02:21:50,007 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 [2022-11-22 02:21:50,008 INFO L413 NwaCegarLoop]: 3499 mSDtfsCounter, 2254 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 973 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2254 SdHoareTripleChecker+Valid, 6183 SdHoareTripleChecker+Invalid, 981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 973 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:50,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2254 Valid, 6183 Invalid, 981 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 973 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-22 02:21:50,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5769 states. [2022-11-22 02:21:50,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5769 to 5762. [2022-11-22 02:21:50,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5762 states, 3443 states have (on average 1.2587859424920127) internal successors, (4334), 3520 states have internal predecessors, (4334), 1853 states have call successors, (1853), 464 states have call predecessors, (1853), 464 states have return successors, (1854), 1826 states have call predecessors, (1854), 1853 states have call successors, (1854) [2022-11-22 02:21:50,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5762 states to 5762 states and 8041 transitions. [2022-11-22 02:21:50,313 INFO L78 Accepts]: Start accepts. Automaton has 5762 states and 8041 transitions. Word has length 294 [2022-11-22 02:21:50,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:21:50,315 INFO L495 AbstractCegarLoop]: Abstraction has 5762 states and 8041 transitions. [2022-11-22 02:21:50,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-22 02:21:50,316 INFO L276 IsEmpty]: Start isEmpty. Operand 5762 states and 8041 transitions. [2022-11-22 02:21:50,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-22 02:21:50,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:21:50,329 INFO L195 NwaCegarLoop]: trace histogram [28, 24, 24, 24, 24, 24, 24, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:21:50,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 02:21:50,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:21:50,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:21:50,339 INFO L85 PathProgramCache]: Analyzing trace with hash 486098703, now seen corresponding path program 1 times [2022-11-22 02:21:50,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:21:50,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147739787] [2022-11-22 02:21:50,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:21:50,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:21:50,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:21:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 2433 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2430 trivial. 0 not checked. [2022-11-22 02:21:51,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:21:51,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147739787] [2022-11-22 02:21:51,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147739787] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:21:51,006 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:21:51,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:21:51,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546519740] [2022-11-22 02:21:51,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:21:51,007 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:21:51,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:21:51,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:21:51,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:21:51,009 INFO L87 Difference]: Start difference. First operand 5762 states and 8041 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 02:21:55,675 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 [] [2022-11-22 02:21:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:21:59,356 INFO L93 Difference]: Finished difference Result 13365 states and 18652 transitions. [2022-11-22 02:21:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:21:59,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 329 [2022-11-22 02:21:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:21:59,403 INFO L225 Difference]: With dead ends: 13365 [2022-11-22 02:21:59,404 INFO L226 Difference]: Without dead ends: 7652 [2022-11-22 02:21:59,429 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 [2022-11-22 02:21:59,430 INFO L413 NwaCegarLoop]: 4590 mSDtfsCounter, 2164 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1257 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2164 SdHoareTripleChecker+Valid, 7311 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:21:59,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2164 Valid, 7311 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1257 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-22 02:21:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7652 states. [2022-11-22 02:21:59,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7652 to 7646. [2022-11-22 02:21:59,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7646 states, 4599 states have (on average 1.2617960426179604) internal successors, (5803), 4694 states have internal predecessors, (5803), 2423 states have call successors, (2423), 622 states have call predecessors, (2423), 622 states have return successors, (2424), 2390 states have call predecessors, (2424), 2423 states have call successors, (2424) [2022-11-22 02:22:00,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7646 states to 7646 states and 10650 transitions. [2022-11-22 02:22:00,029 INFO L78 Accepts]: Start accepts. Automaton has 7646 states and 10650 transitions. Word has length 329 [2022-11-22 02:22:00,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:00,031 INFO L495 AbstractCegarLoop]: Abstraction has 7646 states and 10650 transitions. [2022-11-22 02:22:00,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (40), 2 states have call predecessors, (40), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2022-11-22 02:22:00,032 INFO L276 IsEmpty]: Start isEmpty. Operand 7646 states and 10650 transitions. [2022-11-22 02:22:00,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2022-11-22 02:22:00,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:00,045 INFO L195 NwaCegarLoop]: trace histogram [30, 24, 24, 24, 24, 24, 24, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:00,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:22:00,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:22:00,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:00,047 INFO L85 PathProgramCache]: Analyzing trace with hash -348566398, now seen corresponding path program 1 times [2022-11-22 02:22:00,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:00,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046211474] [2022-11-22 02:22:00,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:00,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2639 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2622 trivial. 0 not checked. [2022-11-22 02:22:01,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:01,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046211474] [2022-11-22 02:22:01,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2046211474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:01,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:01,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:22:01,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215884914] [2022-11-22 02:22:01,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:01,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:22:01,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:01,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:22:01,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:22:01,096 INFO L87 Difference]: Start difference. First operand 7646 states and 10650 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 02:22:04,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:06,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:07,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:10,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:10,902 INFO L93 Difference]: Finished difference Result 18093 states and 25149 transitions. [2022-11-22 02:22:10,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:22:10,902 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 393 [2022-11-22 02:22:10,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:10,961 INFO L225 Difference]: With dead ends: 18093 [2022-11-22 02:22:10,961 INFO L226 Difference]: Without dead ends: 10496 [2022-11-22 02:22:10,991 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 [2022-11-22 02:22:10,992 INFO L413 NwaCegarLoop]: 4775 mSDtfsCounter, 2907 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 1222 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2907 SdHoareTripleChecker+Valid, 7123 SdHoareTripleChecker+Invalid, 1241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:10,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2907 Valid, 7123 Invalid, 1241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1222 Invalid, 0 Unknown, 0 Unchecked, 9.4s Time] [2022-11-22 02:22:11,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10496 states. [2022-11-22 02:22:11,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10496 to 10490. [2022-11-22 02:22:11,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10490 states, 6318 states have (on average 1.258784425451092) internal successors, (7953), 6443 states have internal predecessors, (7953), 3291 states have call successors, (3291), 879 states have call predecessors, (3291), 879 states have return successors, (3292), 3248 states have call predecessors, (3292), 3291 states have call successors, (3292) [2022-11-22 02:22:11,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10490 states to 10490 states and 14536 transitions. [2022-11-22 02:22:11,520 INFO L78 Accepts]: Start accepts. Automaton has 10490 states and 14536 transitions. Word has length 393 [2022-11-22 02:22:11,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:11,522 INFO L495 AbstractCegarLoop]: Abstraction has 10490 states and 14536 transitions. [2022-11-22 02:22:11,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-11-22 02:22:11,522 INFO L276 IsEmpty]: Start isEmpty. Operand 10490 states and 14536 transitions. [2022-11-22 02:22:11,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2022-11-22 02:22:11,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:11,537 INFO L195 NwaCegarLoop]: trace histogram [32, 24, 24, 24, 24, 24, 24, 10, 10, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:11,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-22 02:22:11,538 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:22:11,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:11,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1759496691, now seen corresponding path program 1 times [2022-11-22 02:22:11,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:11,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418578747] [2022-11-22 02:22:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:11,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:12,520 INFO L134 CoverageAnalysis]: Checked inductivity of 2856 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 2824 trivial. 0 not checked. [2022-11-22 02:22:12,520 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:12,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418578747] [2022-11-22 02:22:12,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418578747] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:12,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:12,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:22:12,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745978721] [2022-11-22 02:22:12,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:12,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:22:12,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:12,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:22:12,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:22:12,525 INFO L87 Difference]: Start difference. First operand 10490 states and 14536 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 02:22:15,108 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 [] [2022-11-22 02:22:21,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:21,058 INFO L93 Difference]: Finished difference Result 22840 states and 31674 transitions. [2022-11-22 02:22:21,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:22:21,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) Word has length 442 [2022-11-22 02:22:21,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:21,120 INFO L225 Difference]: With dead ends: 22840 [2022-11-22 02:22:21,120 INFO L226 Difference]: Without dead ends: 12399 [2022-11-22 02:22:21,160 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 [2022-11-22 02:22:21,161 INFO L413 NwaCegarLoop]: 4106 mSDtfsCounter, 2189 mSDsluCounter, 2721 mSDsCounter, 0 mSdLazyCounter, 1113 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 6827 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1113 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:21,161 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 6827 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1113 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-22 02:22:21,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12399 states. [2022-11-22 02:22:21,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12399 to 12393. [2022-11-22 02:22:21,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12393 states, 7494 states have (on average 1.2615425673872431) internal successors, (9454), 7637 states have internal predecessors, (9454), 3860 states have call successors, (3860), 1037 states have call predecessors, (3860), 1037 states have return successors, (3861), 3811 states have call predecessors, (3861), 3860 states have call successors, (3861) [2022-11-22 02:22:21,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12393 states to 12393 states and 17175 transitions. [2022-11-22 02:22:21,900 INFO L78 Accepts]: Start accepts. Automaton has 12393 states and 17175 transitions. Word has length 442 [2022-11-22 02:22:21,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:21,902 INFO L495 AbstractCegarLoop]: Abstraction has 12393 states and 17175 transitions. [2022-11-22 02:22:21,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (47), 3 states have call predecessors, (47), 3 states have call successors, (47) [2022-11-22 02:22:21,903 INFO L276 IsEmpty]: Start isEmpty. Operand 12393 states and 17175 transitions. [2022-11-22 02:22:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-22 02:22:21,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:21,920 INFO L195 NwaCegarLoop]: trace histogram [33, 26, 26, 26, 26, 26, 26, 11, 11, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:21,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-22 02:22:21,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:22:21,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1251239882, now seen corresponding path program 1 times [2022-11-22 02:22:21,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:21,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972922446] [2022-11-22 02:22:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:21,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3214 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3214 trivial. 0 not checked. [2022-11-22 02:22:24,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:24,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972922446] [2022-11-22 02:22:24,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972922446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:24,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:24,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 02:22:24,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224288976] [2022-11-22 02:22:24,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:24,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 02:22:24,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:24,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 02:22:24,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 02:22:24,299 INFO L87 Difference]: Start difference. First operand 12393 states and 17175 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-22 02:22:27,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:30,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:32,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:34,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:39,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:39,048 INFO L93 Difference]: Finished difference Result 32511 states and 46441 transitions. [2022-11-22 02:22:39,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:22:39,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) Word has length 480 [2022-11-22 02:22:39,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:39,140 INFO L225 Difference]: With dead ends: 32511 [2022-11-22 02:22:39,140 INFO L226 Difference]: Without dead ends: 20167 [2022-11-22 02:22:39,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:22:39,183 INFO L413 NwaCegarLoop]: 3951 mSDtfsCounter, 1721 mSDsluCounter, 6717 mSDsCounter, 0 mSdLazyCounter, 1597 mSolverCounterSat, 488 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1969 SdHoareTripleChecker+Valid, 10668 SdHoareTripleChecker+Invalid, 2087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 488 IncrementalHoareTripleChecker+Valid, 1597 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:39,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1969 Valid, 10668 Invalid, 2087 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [488 Valid, 1597 Invalid, 2 Unknown, 0 Unchecked, 13.6s Time] [2022-11-22 02:22:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20167 states. [2022-11-22 02:22:40,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20167 to 12397. [2022-11-22 02:22:40,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12397 states, 7498 states have (on average 1.261403040810883) internal successors, (9458), 7641 states have internal predecessors, (9458), 3860 states have call successors, (3860), 1037 states have call predecessors, (3860), 1037 states have return successors, (3861), 3811 states have call predecessors, (3861), 3860 states have call successors, (3861) [2022-11-22 02:22:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12397 states to 12397 states and 17179 transitions. [2022-11-22 02:22:40,255 INFO L78 Accepts]: Start accepts. Automaton has 12397 states and 17179 transitions. Word has length 480 [2022-11-22 02:22:40,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:40,256 INFO L495 AbstractCegarLoop]: Abstraction has 12397 states and 17179 transitions. [2022-11-22 02:22:40,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (54), 2 states have call predecessors, (54), 2 states have call successors, (54) [2022-11-22 02:22:40,257 INFO L276 IsEmpty]: Start isEmpty. Operand 12397 states and 17179 transitions. [2022-11-22 02:22:40,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2022-11-22 02:22:40,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:40,267 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:40,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-22 02:22:40,267 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:22:40,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:40,268 INFO L85 PathProgramCache]: Analyzing trace with hash -858965640, now seen corresponding path program 1 times [2022-11-22 02:22:40,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:40,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776966521] [2022-11-22 02:22:40,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:40,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:22:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-22 02:22:40,971 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:22:40,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776966521] [2022-11-22 02:22:40,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776966521] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:22:40,971 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:22:40,972 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:22:40,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259987330] [2022-11-22 02:22:40,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:22:40,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:22:40,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:22:40,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:22:40,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:22:40,974 INFO L87 Difference]: Start difference. First operand 12397 states and 17179 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:22:48,178 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:52,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:53,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:22:58,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:22:58,690 INFO L93 Difference]: Finished difference Result 27065 states and 37488 transitions. [2022-11-22 02:22:58,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:22:58,691 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 480 [2022-11-22 02:22:58,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:22:58,766 INFO L225 Difference]: With dead ends: 27065 [2022-11-22 02:22:58,766 INFO L226 Difference]: Without dead ends: 14717 [2022-11-22 02:22:58,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:22:58,809 INFO L413 NwaCegarLoop]: 4563 mSDtfsCounter, 2221 mSDsluCounter, 11847 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2221 SdHoareTripleChecker+Valid, 16410 SdHoareTripleChecker+Invalid, 2798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:22:58,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2221 Valid, 16410 Invalid, 2798 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2794 Invalid, 1 Unknown, 0 Unchecked, 16.9s Time] [2022-11-22 02:22:58,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14717 states. [2022-11-22 02:22:59,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14717 to 14707. [2022-11-22 02:22:59,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14707 states, 8904 states have (on average 1.262915543575921) internal successors, (11245), 9072 states have internal predecessors, (11245), 4559 states have call successors, (4559), 1240 states have call predecessors, (4559), 1242 states have return successors, (4562), 4505 states have call predecessors, (4562), 4559 states have call successors, (4562) [2022-11-22 02:22:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14707 states to 14707 states and 20366 transitions. [2022-11-22 02:22:59,775 INFO L78 Accepts]: Start accepts. Automaton has 14707 states and 20366 transitions. Word has length 480 [2022-11-22 02:22:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:22:59,776 INFO L495 AbstractCegarLoop]: Abstraction has 14707 states and 20366 transitions. [2022-11-22 02:22:59,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 4 states have internal predecessors, (125), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:22:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 14707 states and 20366 transitions. [2022-11-22 02:22:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2022-11-22 02:22:59,788 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:22:59,788 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:22:59,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-22 02:22:59,788 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:22:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:22:59,789 INFO L85 PathProgramCache]: Analyzing trace with hash -636354255, now seen corresponding path program 1 times [2022-11-22 02:22:59,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:22:59,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260766170] [2022-11-22 02:22:59,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:22:59,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:22:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:00,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-22 02:23:00,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:00,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260766170] [2022-11-22 02:23:00,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260766170] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:00,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:00,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:00,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451305997] [2022-11-22 02:23:00,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:00,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:23:00,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:00,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:23:00,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:00,692 INFO L87 Difference]: Start difference. First operand 14707 states and 20366 transitions. Second operand has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:23:07,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:09,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:11,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:14,906 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:16,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:21,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:21,322 INFO L93 Difference]: Finished difference Result 31653 states and 43814 transitions. [2022-11-22 02:23:21,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:23:21,323 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 481 [2022-11-22 02:23:21,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:21,389 INFO L225 Difference]: With dead ends: 31653 [2022-11-22 02:23:21,389 INFO L226 Difference]: Without dead ends: 16995 [2022-11-22 02:23:21,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:21,436 INFO L413 NwaCegarLoop]: 4653 mSDtfsCounter, 2226 mSDsluCounter, 12026 mSDsCounter, 0 mSdLazyCounter, 2847 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 16679 SdHoareTripleChecker+Invalid, 2857 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2847 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:21,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 16679 Invalid, 2857 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2847 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2022-11-22 02:23:21,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16995 states. [2022-11-22 02:23:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16995 to 16985. [2022-11-22 02:23:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16985 states, 10298 states have (on average 1.2637405321421635) internal successors, (13014), 10487 states have internal predecessors, (13014), 5238 states have call successors, (5238), 1443 states have call predecessors, (5238), 1447 states have return successors, (5243), 5179 states have call predecessors, (5243), 5238 states have call successors, (5243) [2022-11-22 02:23:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16985 states to 16985 states and 23495 transitions. [2022-11-22 02:23:22,458 INFO L78 Accepts]: Start accepts. Automaton has 16985 states and 23495 transitions. Word has length 481 [2022-11-22 02:23:22,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:22,459 INFO L495 AbstractCegarLoop]: Abstraction has 16985 states and 23495 transitions. [2022-11-22 02:23:22,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.2) internal successors, (126), 4 states have internal predecessors, (126), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:23:22,459 INFO L276 IsEmpty]: Start isEmpty. Operand 16985 states and 23495 transitions. [2022-11-22 02:23:22,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-11-22 02:23:22,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:22,473 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:22,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-22 02:23:22,474 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:23:22,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:22,475 INFO L85 PathProgramCache]: Analyzing trace with hash 869861978, now seen corresponding path program 1 times [2022-11-22 02:23:22,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:22,475 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514143545] [2022-11-22 02:23:22,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:22,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:22,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:23,093 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-22 02:23:23,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:23,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514143545] [2022-11-22 02:23:23,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514143545] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:23,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:23,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:23,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091313876] [2022-11-22 02:23:23,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:23,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:23:23,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:23,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:23:23,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:23,097 INFO L87 Difference]: Start difference. First operand 16985 states and 23495 transitions. Second operand has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:23:29,540 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 [] [2022-11-22 02:23:36,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:36,941 INFO L93 Difference]: Finished difference Result 36173 states and 50033 transitions. [2022-11-22 02:23:36,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:23:36,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 482 [2022-11-22 02:23:36,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:37,007 INFO L225 Difference]: With dead ends: 36173 [2022-11-22 02:23:37,007 INFO L226 Difference]: Without dead ends: 19237 [2022-11-22 02:23:37,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:37,182 INFO L413 NwaCegarLoop]: 4508 mSDtfsCounter, 2183 mSDsluCounter, 11720 mSDsCounter, 0 mSdLazyCounter, 2813 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2183 SdHoareTripleChecker+Valid, 16228 SdHoareTripleChecker+Invalid, 2824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 2813 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.0s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:37,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2183 Valid, 16228 Invalid, 2824 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 2813 Invalid, 1 Unknown, 0 Unchecked, 13.0s Time] [2022-11-22 02:23:37,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19237 states. [2022-11-22 02:23:37,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19237 to 19227. [2022-11-22 02:23:37,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19227 states, 11669 states have (on average 1.2642043019967435) internal successors, (14752), 11879 states have internal predecessors, (14752), 5911 states have call successors, (5911), 1639 states have call predecessors, (5911), 1645 states have return successors, (5918), 5847 states have call predecessors, (5918), 5911 states have call successors, (5918) [2022-11-22 02:23:38,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19227 states to 19227 states and 26581 transitions. [2022-11-22 02:23:38,079 INFO L78 Accepts]: Start accepts. Automaton has 19227 states and 26581 transitions. Word has length 482 [2022-11-22 02:23:38,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:23:38,080 INFO L495 AbstractCegarLoop]: Abstraction has 19227 states and 26581 transitions. [2022-11-22 02:23:38,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.4) internal successors, (127), 4 states have internal predecessors, (127), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:23:38,081 INFO L276 IsEmpty]: Start isEmpty. Operand 19227 states and 26581 transitions. [2022-11-22 02:23:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2022-11-22 02:23:38,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:23:38,093 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:23:38,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-22 02:23:38,094 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:23:38,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:23:38,094 INFO L85 PathProgramCache]: Analyzing trace with hash -360799398, now seen corresponding path program 1 times [2022-11-22 02:23:38,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:23:38,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315371557] [2022-11-22 02:23:38,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:23:38,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:23:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:23:38,699 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-22 02:23:38,699 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:23:38,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315371557] [2022-11-22 02:23:38,700 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315371557] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:23:38,700 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:23:38,700 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:23:38,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118421030] [2022-11-22 02:23:38,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:23:38,701 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:23:38,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:23:38,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:23:38,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:38,702 INFO L87 Difference]: Start difference. First operand 19227 states and 26581 transitions. Second operand has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:23:42,213 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 [] [2022-11-22 02:23:44,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:46,221 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:48,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:51,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:23:54,099 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 [] [2022-11-22 02:23:59,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:23:59,406 INFO L93 Difference]: Finished difference Result 40787 states and 56383 transitions. [2022-11-22 02:23:59,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:23:59,407 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 483 [2022-11-22 02:23:59,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:23:59,499 INFO L225 Difference]: With dead ends: 40787 [2022-11-22 02:23:59,500 INFO L226 Difference]: Without dead ends: 21609 [2022-11-22 02:23:59,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:23:59,564 INFO L413 NwaCegarLoop]: 4439 mSDtfsCounter, 2191 mSDsluCounter, 11600 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 17 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2191 SdHoareTripleChecker+Valid, 16039 SdHoareTripleChecker+Invalid, 2768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:23:59,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2191 Valid, 16039 Invalid, 2768 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [17 Valid, 2747 Invalid, 4 Unknown, 0 Unchecked, 19.7s Time] [2022-11-22 02:23:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21609 states. [2022-11-22 02:24:01,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21609 to 21599. [2022-11-22 02:24:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21599 states, 13113 states have (on average 1.2634789903149546) internal successors, (16568), 13343 states have internal predecessors, (16568), 6627 states have call successors, (6627), 1849 states have call predecessors, (6627), 1857 states have return successors, (6636), 6559 states have call predecessors, (6636), 6627 states have call successors, (6636) [2022-11-22 02:24:01,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21599 states to 21599 states and 29831 transitions. [2022-11-22 02:24:01,157 INFO L78 Accepts]: Start accepts. Automaton has 21599 states and 29831 transitions. Word has length 483 [2022-11-22 02:24:01,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:24:01,158 INFO L495 AbstractCegarLoop]: Abstraction has 21599 states and 29831 transitions. [2022-11-22 02:24:01,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.6) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:24:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 21599 states and 29831 transitions. [2022-11-22 02:24:01,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 485 [2022-11-22 02:24:01,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:24:01,180 INFO L195 NwaCegarLoop]: trace histogram [34, 24, 24, 24, 24, 24, 24, 11, 11, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:24:01,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-22 02:24:01,180 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:24:01,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:24:01,181 INFO L85 PathProgramCache]: Analyzing trace with hash 1447347443, now seen corresponding path program 1 times [2022-11-22 02:24:01,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:24:01,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155680239] [2022-11-22 02:24:01,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:24:01,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:24:01,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:24:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3077 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 3030 trivial. 0 not checked. [2022-11-22 02:24:02,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:24:02,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155680239] [2022-11-22 02:24:02,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155680239] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:24:02,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:24:02,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:24:02,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638211490] [2022-11-22 02:24:02,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:24:02,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:24:02,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:24:02,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:24:02,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:24:02,064 INFO L87 Difference]: Start difference. First operand 21599 states and 29831 transitions. Second operand has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:24:05,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:07,889 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:10,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:12,074 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 [] [2022-11-22 02:24:18,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:24:18,744 INFO L93 Difference]: Finished difference Result 45265 states and 62527 transitions. [2022-11-22 02:24:18,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:24:18,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) Word has length 484 [2022-11-22 02:24:18,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:24:18,909 INFO L225 Difference]: With dead ends: 45265 [2022-11-22 02:24:18,909 INFO L226 Difference]: Without dead ends: 23715 [2022-11-22 02:24:18,971 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:24:18,971 INFO L413 NwaCegarLoop]: 4422 mSDtfsCounter, 2184 mSDsluCounter, 11555 mSDsCounter, 0 mSdLazyCounter, 2732 mSolverCounterSat, 18 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2184 SdHoareTripleChecker+Valid, 15977 SdHoareTripleChecker+Invalid, 2751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 2732 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:24:18,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2184 Valid, 15977 Invalid, 2751 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [18 Valid, 2732 Invalid, 1 Unknown, 0 Unchecked, 15.7s Time] [2022-11-22 02:24:18,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23715 states. [2022-11-22 02:24:19,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23715 to 23705. [2022-11-22 02:24:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23705 states, 14412 states have (on average 1.2640854843186233) internal successors, (18218), 14660 states have internal predecessors, (18218), 7248 states have call successors, (7248), 2035 states have call predecessors, (7248), 2043 states have return successors, (7257), 7174 states have call predecessors, (7257), 7248 states have call successors, (7257) [2022-11-22 02:24:20,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23705 states to 23705 states and 32723 transitions. [2022-11-22 02:24:20,035 INFO L78 Accepts]: Start accepts. Automaton has 23705 states and 32723 transitions. Word has length 484 [2022-11-22 02:24:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:24:20,036 INFO L495 AbstractCegarLoop]: Abstraction has 23705 states and 32723 transitions. [2022-11-22 02:24:20,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.8) internal successors, (129), 4 states have internal predecessors, (129), 3 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (50), 4 states have call predecessors, (50), 3 states have call successors, (50) [2022-11-22 02:24:20,037 INFO L276 IsEmpty]: Start isEmpty. Operand 23705 states and 32723 transitions. [2022-11-22 02:24:20,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2022-11-22 02:24:20,051 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:24:20,052 INFO L195 NwaCegarLoop]: trace histogram [33, 26, 26, 26, 26, 26, 26, 13, 13, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:24:20,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-22 02:24:20,052 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:24:20,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:24:20,053 INFO L85 PathProgramCache]: Analyzing trace with hash 375468780, now seen corresponding path program 1 times [2022-11-22 02:24:20,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:24:20,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399296159] [2022-11-22 02:24:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:24:20,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:24:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:24:23,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3303 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 3253 trivial. 0 not checked. [2022-11-22 02:24:23,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:24:23,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399296159] [2022-11-22 02:24:23,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399296159] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:24:23,780 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:24:23,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:24:23,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996410538] [2022-11-22 02:24:23,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:24:23,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:24:23,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:24:23,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:24:23,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:24:23,783 INFO L87 Difference]: Start difference. First operand 23705 states and 32723 transitions. Second operand has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-22 02:24:26,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:27,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:28,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:31,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:34,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:38,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:24:38,216 INFO L93 Difference]: Finished difference Result 47389 states and 65452 transitions. [2022-11-22 02:24:38,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:24:38,217 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) Word has length 497 [2022-11-22 02:24:38,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:24:38,294 INFO L225 Difference]: With dead ends: 47389 [2022-11-22 02:24:38,295 INFO L226 Difference]: Without dead ends: 23733 [2022-11-22 02:24:38,354 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:24:38,355 INFO L413 NwaCegarLoop]: 2771 mSDtfsCounter, 0 mSDsluCounter, 8281 mSDsCounter, 0 mSdLazyCounter, 1771 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11052 SdHoareTripleChecker+Invalid, 1771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:24:38,355 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 11052 Invalid, 1771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1771 Invalid, 0 Unknown, 0 Unchecked, 13.7s Time] [2022-11-22 02:24:38,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23733 states. [2022-11-22 02:24:39,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23733 to 23709. [2022-11-22 02:24:39,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23709 states, 14415 states have (on average 1.2640305237599723) internal successors, (18221), 14663 states have internal predecessors, (18221), 7248 states have call successors, (7248), 2035 states have call predecessors, (7248), 2044 states have return successors, (7262), 7175 states have call predecessors, (7262), 7248 states have call successors, (7262) [2022-11-22 02:24:39,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23709 states to 23709 states and 32731 transitions. [2022-11-22 02:24:39,586 INFO L78 Accepts]: Start accepts. Automaton has 23709 states and 32731 transitions. Word has length 497 [2022-11-22 02:24:39,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:24:39,587 INFO L495 AbstractCegarLoop]: Abstraction has 23709 states and 32731 transitions. [2022-11-22 02:24:39,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.4) internal successors, (132), 4 states have internal predecessors, (132), 2 states have call successors, (59), 2 states have call predecessors, (59), 2 states have return successors, (55), 3 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-22 02:24:39,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23709 states and 32731 transitions. [2022-11-22 02:24:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2022-11-22 02:24:39,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:24:39,610 INFO L195 NwaCegarLoop]: trace histogram [33, 26, 26, 26, 26, 26, 25, 15, 15, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:24:39,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-22 02:24:39,611 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:24:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:24:39,612 INFO L85 PathProgramCache]: Analyzing trace with hash -837119396, now seen corresponding path program 1 times [2022-11-22 02:24:39,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:24:39,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865421388] [2022-11-22 02:24:39,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:24:39,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:24:40,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:24:47,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3392 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3392 trivial. 0 not checked. [2022-11-22 02:24:47,498 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:24:47,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865421388] [2022-11-22 02:24:47,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865421388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:24:47,499 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:24:47,499 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-22 02:24:47,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546951904] [2022-11-22 02:24:47,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:24:47,500 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 02:24:47,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:24:47,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 02:24:47,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-22 02:24:47,501 INFO L87 Difference]: Start difference. First operand 23709 states and 32731 transitions. Second operand has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-22 02:24:50,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:52,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:54,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:24:55,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:00,295 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 [] [2022-11-22 02:25:08,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:08,495 INFO L93 Difference]: Finished difference Result 23735 states and 32795 transitions. [2022-11-22 02:25:08,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:25:08,496 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) Word has length 510 [2022-11-22 02:25:08,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:08,578 INFO L225 Difference]: With dead ends: 23735 [2022-11-22 02:25:08,578 INFO L226 Difference]: Without dead ends: 23733 [2022-11-22 02:25:08,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-22 02:25:08,590 INFO L413 NwaCegarLoop]: 2774 mSDtfsCounter, 3052 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 3247 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3054 SdHoareTripleChecker+Valid, 9582 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3247 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:08,590 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3054 Valid, 9582 Invalid, 3249 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 3247 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2022-11-22 02:25:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23733 states. [2022-11-22 02:25:10,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23733 to 23707. [2022-11-22 02:25:10,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23707 states, 14414 states have (on average 1.2631469404745386) internal successors, (18207), 14661 states have internal predecessors, (18207), 7248 states have call successors, (7248), 2035 states have call predecessors, (7248), 2044 states have return successors, (7262), 7175 states have call predecessors, (7262), 7248 states have call successors, (7262) [2022-11-22 02:25:10,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23707 states to 23707 states and 32717 transitions. [2022-11-22 02:25:10,946 INFO L78 Accepts]: Start accepts. Automaton has 23707 states and 32717 transitions. Word has length 510 [2022-11-22 02:25:10,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:10,947 INFO L495 AbstractCegarLoop]: Abstraction has 23707 states and 32717 transitions. [2022-11-22 02:25:10,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 26.6) internal successors, (133), 5 states have internal predecessors, (133), 2 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (58), 3 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-22 02:25:10,947 INFO L276 IsEmpty]: Start isEmpty. Operand 23707 states and 32717 transitions. [2022-11-22 02:25:10,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 522 [2022-11-22 02:25:10,967 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:10,967 INFO L195 NwaCegarLoop]: trace histogram [35, 24, 24, 24, 24, 24, 24, 12, 12, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:10,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-22 02:25:10,968 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:10,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:10,969 INFO L85 PathProgramCache]: Analyzing trace with hash -137392242, now seen corresponding path program 1 times [2022-11-22 02:25:10,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:10,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597138284] [2022-11-22 02:25:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:10,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:11,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:11,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3254 backedges. 59 proven. 15 refuted. 0 times theorem prover too weak. 3180 trivial. 0 not checked. [2022-11-22 02:25:11,615 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:11,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597138284] [2022-11-22 02:25:11,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597138284] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:25:11,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977660653] [2022-11-22 02:25:11,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:11,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:25:11,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:25:11,620 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:25:11,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:25:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:13,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 5240 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 02:25:13,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:25:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3254 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 3122 trivial. 0 not checked. [2022-11-22 02:25:13,789 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:25:13,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977660653] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:13,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:25:13,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-22 02:25:13,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69384042] [2022-11-22 02:25:13,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:13,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:13,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:13,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:13,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:13,792 INFO L87 Difference]: Start difference. First operand 23707 states and 32717 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-22 02:25:18,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:23,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:23,509 INFO L93 Difference]: Finished difference Result 50527 states and 69615 transitions. [2022-11-22 02:25:23,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:23,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 521 [2022-11-22 02:25:23,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:23,580 INFO L225 Difference]: With dead ends: 50527 [2022-11-22 02:25:23,580 INFO L226 Difference]: Without dead ends: 26869 [2022-11-22 02:25:23,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 522 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:25:23,625 INFO L413 NwaCegarLoop]: 3600 mSDtfsCounter, 2984 mSDsluCounter, 2264 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 5864 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:23,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2984 Valid, 5864 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2022-11-22 02:25:23,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26869 states. [2022-11-22 02:25:26,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26869 to 26865. [2022-11-22 02:25:26,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26865 states, 16333 states have (on average 1.2628420988183433) internal successors, (20626), 16603 states have internal predecessors, (20626), 8156 states have call successors, (8156), 2366 states have call predecessors, (8156), 2375 states have return successors, (8170), 8076 states have call predecessors, (8170), 8156 states have call successors, (8170) [2022-11-22 02:25:26,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26865 states to 26865 states and 36952 transitions. [2022-11-22 02:25:26,383 INFO L78 Accepts]: Start accepts. Automaton has 26865 states and 36952 transitions. Word has length 521 [2022-11-22 02:25:26,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:26,383 INFO L495 AbstractCegarLoop]: Abstraction has 26865 states and 36952 transitions. [2022-11-22 02:25:26,383 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 3 states have call successors, (57), 3 states have call predecessors, (57), 3 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-22 02:25:26,383 INFO L276 IsEmpty]: Start isEmpty. Operand 26865 states and 36952 transitions. [2022-11-22 02:25:26,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-11-22 02:25:26,396 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:26,397 INFO L195 NwaCegarLoop]: trace histogram [35, 24, 24, 24, 24, 24, 24, 12, 12, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:26,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 02:25:26,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-22 02:25:26,612 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:26,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:26,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1165400351, now seen corresponding path program 1 times [2022-11-22 02:25:26,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:26,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359293581] [2022-11-22 02:25:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:26,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:26,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3232 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 3173 trivial. 0 not checked. [2022-11-22 02:25:26,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:26,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359293581] [2022-11-22 02:25:26,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359293581] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:26,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:26,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:26,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741609769] [2022-11-22 02:25:26,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:26,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:26,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:26,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:26,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:26,982 INFO L87 Difference]: Start difference. First operand 26865 states and 36952 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-22 02:25:31,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:33,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:37,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:41,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:41,161 INFO L93 Difference]: Finished difference Result 55995 states and 77027 transitions. [2022-11-22 02:25:41,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:41,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) Word has length 530 [2022-11-22 02:25:41,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:41,244 INFO L225 Difference]: With dead ends: 55995 [2022-11-22 02:25:41,245 INFO L226 Difference]: Without dead ends: 29179 [2022-11-22 02:25:41,298 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 [2022-11-22 02:25:41,299 INFO L413 NwaCegarLoop]: 4659 mSDtfsCounter, 2277 mSDsluCounter, 2722 mSDsCounter, 0 mSdLazyCounter, 1258 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 7381 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1258 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:41,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 7381 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1258 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-22 02:25:41,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29179 states. [2022-11-22 02:25:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29179 to 29175. [2022-11-22 02:25:44,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29175 states, 17735 states have (on average 1.263321116436425) internal successors, (22405), 18029 states have internal predecessors, (22405), 8861 states have call successors, (8861), 2569 states have call predecessors, (8861), 2578 states have return successors, (8875), 8774 states have call predecessors, (8875), 8861 states have call successors, (8875) [2022-11-22 02:25:44,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29175 states to 29175 states and 40141 transitions. [2022-11-22 02:25:44,552 INFO L78 Accepts]: Start accepts. Automaton has 29175 states and 40141 transitions. Word has length 530 [2022-11-22 02:25:44,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:25:44,552 INFO L495 AbstractCegarLoop]: Abstraction has 29175 states and 40141 transitions. [2022-11-22 02:25:44,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 3 states have call successors, (61), 2 states have call predecessors, (61), 1 states have return successors, (58), 3 states have call predecessors, (58), 3 states have call successors, (58) [2022-11-22 02:25:44,552 INFO L276 IsEmpty]: Start isEmpty. Operand 29175 states and 40141 transitions. [2022-11-22 02:25:44,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2022-11-22 02:25:44,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:25:44,569 INFO L195 NwaCegarLoop]: trace histogram [35, 24, 24, 24, 24, 24, 24, 13, 13, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:25:44,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-22 02:25:44,569 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:25:44,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:25:44,570 INFO L85 PathProgramCache]: Analyzing trace with hash -873484891, now seen corresponding path program 1 times [2022-11-22 02:25:44,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:25:44,570 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842350225] [2022-11-22 02:25:44,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:25:44,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:25:44,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:25:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3294 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 3232 trivial. 0 not checked. [2022-11-22 02:25:45,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:25:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842350225] [2022-11-22 02:25:45,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842350225] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:25:45,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:25:45,051 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 02:25:45,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395568840] [2022-11-22 02:25:45,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:25:45,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 02:25:45,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:25:45,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 02:25:45,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 02:25:45,053 INFO L87 Difference]: Start difference. First operand 29175 states and 40141 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 02:25:49,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:25:54,709 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 [] [2022-11-22 02:25:57,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:25:57,932 INFO L93 Difference]: Finished difference Result 60166 states and 82817 transitions. [2022-11-22 02:25:57,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 02:25:57,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 545 [2022-11-22 02:25:57,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:25:58,017 INFO L225 Difference]: With dead ends: 60166 [2022-11-22 02:25:58,017 INFO L226 Difference]: Without dead ends: 31040 [2022-11-22 02:25:58,075 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 [2022-11-22 02:25:58,076 INFO L413 NwaCegarLoop]: 4594 mSDtfsCounter, 2156 mSDsluCounter, 2725 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2163 SdHoareTripleChecker+Valid, 7319 SdHoareTripleChecker+Invalid, 1261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2022-11-22 02:25:58,076 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2163 Valid, 7319 Invalid, 1261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1253 Invalid, 1 Unknown, 0 Unchecked, 8.9s Time] [2022-11-22 02:25:58,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31040 states. [2022-11-22 02:26:01,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31040 to 31036. [2022-11-22 02:26:01,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31036 states, 18873 states have (on average 1.2639749907274942) internal successors, (23855), 19185 states have internal predecessors, (23855), 9428 states have call successors, (9428), 2725 states have call predecessors, (9428), 2734 states have return successors, (9449), 9335 states have call predecessors, (9449), 9428 states have call successors, (9449) [2022-11-22 02:26:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31036 states to 31036 states and 42732 transitions. [2022-11-22 02:26:01,404 INFO L78 Accepts]: Start accepts. Automaton has 31036 states and 42732 transitions. Word has length 545 [2022-11-22 02:26:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:01,405 INFO L495 AbstractCegarLoop]: Abstraction has 31036 states and 42732 transitions. [2022-11-22 02:26:01,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 3 states have call successors, (62), 2 states have call predecessors, (62), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-22 02:26:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 31036 states and 42732 transitions. [2022-11-22 02:26:01,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2022-11-22 02:26:01,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:01,442 INFO L195 NwaCegarLoop]: trace histogram [37, 24, 24, 24, 24, 24, 24, 12, 12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:01,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-22 02:26:01,442 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:01,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:01,443 INFO L85 PathProgramCache]: Analyzing trace with hash -958919310, now seen corresponding path program 1 times [2022-11-22 02:26:01,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:01,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072499285] [2022-11-22 02:26:01,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:01,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3491 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 3412 trivial. 0 not checked. [2022-11-22 02:26:02,067 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:02,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072499285] [2022-11-22 02:26:02,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072499285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:02,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:02,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:26:02,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006189494] [2022-11-22 02:26:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:02,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:26:02,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:26:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:26:02,071 INFO L87 Difference]: Start difference. First operand 31036 states and 42732 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-22 02:26:05,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:10,098 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:12,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:14,802 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:17,480 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:25,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:25,998 INFO L93 Difference]: Finished difference Result 64399 states and 88620 transitions. [2022-11-22 02:26:25,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:26:25,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) Word has length 551 [2022-11-22 02:26:25,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:26,097 INFO L225 Difference]: With dead ends: 64399 [2022-11-22 02:26:26,097 INFO L226 Difference]: Without dead ends: 33412 [2022-11-22 02:26:26,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:26:26,164 INFO L413 NwaCegarLoop]: 4604 mSDtfsCounter, 2218 mSDsluCounter, 11927 mSDsCounter, 0 mSdLazyCounter, 2802 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2218 SdHoareTripleChecker+Valid, 16531 SdHoareTripleChecker+Invalid, 2807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2802 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.8s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:26,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2218 Valid, 16531 Invalid, 2807 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2802 Invalid, 2 Unknown, 0 Unchecked, 19.8s Time] [2022-11-22 02:26:26,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33412 states. [2022-11-22 02:26:29,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33412 to 31551. [2022-11-22 02:26:29,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31551 states, 19179 states have (on average 1.2631002659158455) internal successors, (24225), 19494 states have internal predecessors, (24225), 9562 states have call successors, (9562), 2798 states have call predecessors, (9562), 2809 states have return successors, (9585), 9470 states have call predecessors, (9585), 9562 states have call successors, (9585) [2022-11-22 02:26:29,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31551 states to 31551 states and 43372 transitions. [2022-11-22 02:26:29,402 INFO L78 Accepts]: Start accepts. Automaton has 31551 states and 43372 transitions. Word has length 551 [2022-11-22 02:26:29,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:29,403 INFO L495 AbstractCegarLoop]: Abstraction has 31551 states and 43372 transitions. [2022-11-22 02:26:29,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-22 02:26:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 31551 states and 43372 transitions. [2022-11-22 02:26:29,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-11-22 02:26:29,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:29,428 INFO L195 NwaCegarLoop]: trace histogram [37, 24, 24, 24, 24, 24, 24, 12, 12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:29,429 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-22 02:26:29,429 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:29,430 INFO L85 PathProgramCache]: Analyzing trace with hash -563363249, now seen corresponding path program 1 times [2022-11-22 02:26:29,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:29,430 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433972544] [2022-11-22 02:26:29,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:29,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:29,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3492 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 3413 trivial. 0 not checked. [2022-11-22 02:26:29,947 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:29,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433972544] [2022-11-22 02:26:29,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433972544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:29,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:26:29,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:26:29,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677118212] [2022-11-22 02:26:29,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:29,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:26:29,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:29,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:26:29,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:26:29,950 INFO L87 Difference]: Start difference. First operand 31551 states and 43372 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-22 02:26:32,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:33,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:35,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:38,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:26:41,188 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 [] [2022-11-22 02:26:49,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:26:49,461 INFO L93 Difference]: Finished difference Result 65449 states and 89948 transitions. [2022-11-22 02:26:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 02:26:49,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) Word has length 552 [2022-11-22 02:26:49,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:26:49,585 INFO L225 Difference]: With dead ends: 65449 [2022-11-22 02:26:49,585 INFO L226 Difference]: Without dead ends: 33947 [2022-11-22 02:26:49,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:26:49,646 INFO L413 NwaCegarLoop]: 4651 mSDtfsCounter, 2219 mSDsluCounter, 12020 mSDsCounter, 0 mSdLazyCounter, 2842 mSolverCounterSat, 8 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2226 SdHoareTripleChecker+Valid, 16671 SdHoareTripleChecker+Invalid, 2852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 2842 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2022-11-22 02:26:49,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2226 Valid, 16671 Invalid, 2852 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 2842 Invalid, 2 Unknown, 0 Unchecked, 15.4s Time] [2022-11-22 02:26:49,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33947 states. [2022-11-22 02:26:52,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33947 to 33613. [2022-11-22 02:26:52,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33613 states, 20421 states have (on average 1.2629645952695754) internal successors, (25791), 20756 states have internal predecessors, (25791), 10181 states have call successors, (10181), 2997 states have call predecessors, (10181), 3010 states have return successors, (10219), 10085 states have call predecessors, (10219), 10181 states have call successors, (10219) [2022-11-22 02:26:52,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33613 states to 33613 states and 46191 transitions. [2022-11-22 02:26:52,962 INFO L78 Accepts]: Start accepts. Automaton has 33613 states and 46191 transitions. Word has length 552 [2022-11-22 02:26:52,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:26:52,963 INFO L495 AbstractCegarLoop]: Abstraction has 33613 states and 46191 transitions. [2022-11-22 02:26:52,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-22 02:26:52,964 INFO L276 IsEmpty]: Start isEmpty. Operand 33613 states and 46191 transitions. [2022-11-22 02:26:52,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 554 [2022-11-22 02:26:52,984 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:26:52,984 INFO L195 NwaCegarLoop]: trace histogram [37, 24, 24, 24, 24, 24, 24, 12, 12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:26:52,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-22 02:26:52,985 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:26:52,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:26:52,985 INFO L85 PathProgramCache]: Analyzing trace with hash 2009170644, now seen corresponding path program 1 times [2022-11-22 02:26:52,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:26:52,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868586827] [2022-11-22 02:26:52,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:52,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:26:53,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:53,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 109 proven. 30 refuted. 0 times theorem prover too weak. 3354 trivial. 0 not checked. [2022-11-22 02:26:53,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:26:53,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868586827] [2022-11-22 02:26:53,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868586827] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:26:53,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [78075454] [2022-11-22 02:26:53,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:26:53,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:26:53,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:26:53,955 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:26:53,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 02:26:55,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:26:55,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 5313 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 02:26:55,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:26:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 3493 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 3340 trivial. 0 not checked. [2022-11-22 02:26:56,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 02:26:56,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [78075454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:26:56,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 02:26:56,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2022-11-22 02:26:56,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685140286] [2022-11-22 02:26:56,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:26:56,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:26:56,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:26:56,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:26:56,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-11-22 02:26:56,150 INFO L87 Difference]: Start difference. First operand 33613 states and 46191 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 3 states have call successors, (58), 3 states have call predecessors, (58), 4 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-22 02:26:58,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-22 02:27:10,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:27:10,280 INFO L93 Difference]: Finished difference Result 69068 states and 94958 transitions. [2022-11-22 02:27:10,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 02:27:10,281 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 3 states have call successors, (58), 3 states have call predecessors, (58), 4 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) Word has length 553 [2022-11-22 02:27:10,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:27:10,374 INFO L225 Difference]: With dead ends: 69068 [2022-11-22 02:27:10,374 INFO L226 Difference]: Without dead ends: 35504 [2022-11-22 02:27:10,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 554 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-22 02:27:10,445 INFO L413 NwaCegarLoop]: 3605 mSDtfsCounter, 2981 mSDsluCounter, 9473 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2981 SdHoareTripleChecker+Valid, 13078 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.7s IncrementalHoareTripleChecker+Time [2022-11-22 02:27:10,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2981 Valid, 13078 Invalid, 1991 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 9.7s Time] [2022-11-22 02:27:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35504 states. [2022-11-22 02:27:13,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35504 to 35496. [2022-11-22 02:27:13,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35496 states, 21581 states have (on average 1.264121217737825) internal successors, (27281), 21934 states have internal predecessors, (27281), 10748 states have call successors, (10748), 3153 states have call predecessors, (10748), 3166 states have return successors, (10786), 10646 states have call predecessors, (10786), 10748 states have call successors, (10786) [2022-11-22 02:27:14,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35496 states to 35496 states and 48815 transitions. [2022-11-22 02:27:14,106 INFO L78 Accepts]: Start accepts. Automaton has 35496 states and 48815 transitions. Word has length 553 [2022-11-22 02:27:14,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:27:14,107 INFO L495 AbstractCegarLoop]: Abstraction has 35496 states and 48815 transitions. [2022-11-22 02:27:14,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 3 states have call successors, (58), 3 states have call predecessors, (58), 4 states have return successors, (55), 4 states have call predecessors, (55), 3 states have call successors, (55) [2022-11-22 02:27:14,107 INFO L276 IsEmpty]: Start isEmpty. Operand 35496 states and 48815 transitions. [2022-11-22 02:27:14,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2022-11-22 02:27:14,142 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:27:14,143 INFO L195 NwaCegarLoop]: trace histogram [36, 24, 24, 24, 24, 24, 24, 14, 14, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:27:14,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 02:27:14,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9f2a39-e413-4af9-bbe7-c405fbc477c1/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:27:14,361 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_nonatomicErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 02:27:14,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:27:14,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1124850381, now seen corresponding path program 1 times [2022-11-22 02:27:14,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:27:14,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167285484] [2022-11-22 02:27:14,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:27:14,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:27:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat