./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:52:40,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:52:40,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:52:40,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:52:40,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:52:40,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:52:40,704 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:52:40,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:52:40,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:52:40,708 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:52:40,710 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:52:40,711 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:52:40,711 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:52:40,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:52:40,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:52:40,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:52:40,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:52:40,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:52:40,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:52:40,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:52:40,723 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:52:40,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:52:40,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:52:40,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:52:40,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:52:40,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:52:40,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:52:40,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:52:40,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:52:40,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:52:40,735 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:52:40,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:52:40,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:52:40,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:52:40,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:52:40,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:52:40,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:52:40,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:52:40,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:52:40,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:52:40,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:52:40,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:52:40,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:52:40,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:52:40,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:52:40,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:52:40,766 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:52:40,766 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:52:40,766 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:52:40,767 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:52:40,774 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:52:40,774 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:52:40,775 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:52:40,775 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:52:40,775 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:52:40,775 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:52:40,776 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:52:40,776 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:52:40,776 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:52:40,776 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:52:40,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:52:40,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:52:40,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:52:40,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:52:40,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:52:40,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:52:40,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:52:40,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:52:40,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:52:40,779 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:52:40,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:52:40,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:52:40,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:52:40,780 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:52:40,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:52:40,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:52:40,780 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:52:40,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:52:40,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:52:40,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:52:40,781 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_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 [2022-11-19 07:52:41,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:52:41,076 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:52:41,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:52:41,080 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:52:41,081 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:52:41,082 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-19 07:52:41,152 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/69d622d63/b26892deb34e442d9c779825b1121c59/FLAG0f4985809 [2022-11-19 07:52:42,110 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:52:42,111 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-19 07:52:42,172 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/69d622d63/b26892deb34e442d9c779825b1121c59/FLAG0f4985809 [2022-11-19 07:52:42,525 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/69d622d63/b26892deb34e442d9c779825b1121c59 [2022-11-19 07:52:42,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:52:42,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:52:42,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:52:42,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:52:42,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:52:42,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:52:42" (1/1) ... [2022-11-19 07:52:42,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1987f98e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:42, skipping insertion in model container [2022-11-19 07:52:42,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:52:42" (1/1) ... [2022-11-19 07:52:42,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:52:42,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:52:45,565 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-19 07:52:45,571 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-19 07:52:45,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:52:45,669 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:52:46,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-19 07:52:46,079 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-19 07:52:46,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:52:46,258 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:52:46,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46 WrapperNode [2022-11-19 07:52:46,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:52:46,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:52:46,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:52:46,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:52:46,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,366 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,610 INFO L138 Inliner]: procedures = 430, calls = 2331, calls flagged for inlining = 195, calls inlined = 180, statements flattened = 4987 [2022-11-19 07:52:46,611 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:52:46,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:52:46,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:52:46,612 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:52:46,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,885 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:52:46,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:52:46,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:52:46,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:52:46,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (1/1) ... [2022-11-19 07:52:46,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:52:46,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:52:46,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:52:47,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:52:47,042 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-11-19 07:52:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-11-19 07:52:47,043 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:52:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:52:47,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:52:47,043 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:52:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:52:47,044 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:52:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-11-19 07:52:47,044 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-11-19 07:52:47,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 07:52:47,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 07:52:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:52:47,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:52:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-11-19 07:52:47,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-11-19 07:52:47,045 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-11-19 07:52:47,045 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-11-19 07:52:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:52:47,046 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:52:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-19 07:52:47,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-19 07:52:47,046 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-11-19 07:52:47,046 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-11-19 07:52:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-11-19 07:52:47,047 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-11-19 07:52:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:52:47,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:52:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:52:47,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:52:47,047 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:52:47,048 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:52:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:52:47,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:52:47,048 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:52:47,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:52:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:52:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:52:47,049 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:52:47,049 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-11-19 07:52:47,050 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-11-19 07:52:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-11-19 07:52:47,050 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-11-19 07:52:47,050 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:52:47,051 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:52:47,051 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-11-19 07:52:47,051 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-11-19 07:52:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 07:52:47,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 07:52:47,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-19 07:52:47,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-19 07:52:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-11-19 07:52:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-11-19 07:52:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-11-19 07:52:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-11-19 07:52:47,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:52:47,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:52:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:52:47,055 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:52:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:52:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:52:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:52:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:52:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:52:47,056 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:52:47,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:52:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:52:47,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:52:47,057 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-11-19 07:52:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-11-19 07:52:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2022-11-19 07:52:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2022-11-19 07:52:47,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-11-19 07:52:47,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-11-19 07:52:47,059 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-11-19 07:52:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-11-19 07:52:47,059 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:52:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:52:47,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2022-11-19 07:52:47,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2022-11-19 07:52:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:52:47,060 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:52:47,060 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-11-19 07:52:47,061 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-11-19 07:52:47,061 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-11-19 07:52:47,061 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-11-19 07:52:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-11-19 07:52:47,062 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-11-19 07:52:47,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:52:47,063 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-19 07:52:47,063 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-19 07:52:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-11-19 07:52:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-11-19 07:52:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:52:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:52:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:52:47,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:52:47,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:52:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:52:47,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:52:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:52:47,065 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:52:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:52:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:52:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-11-19 07:52:47,066 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-11-19 07:52:47,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:52:47,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:52:47,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:52:47,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:52:47,070 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:52:47,071 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:52:47,071 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:52:47,072 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:52:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:52:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:52:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-19 07:52:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-19 07:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-19 07:52:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-19 07:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-11-19 07:52:47,080 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-11-19 07:52:47,080 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-11-19 07:52:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-11-19 07:52:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:52:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:52:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-19 07:52:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-19 07:52:47,081 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2022-11-19 07:52:47,081 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2022-11-19 07:52:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:52:47,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:52:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:52:47,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:52:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-19 07:52:47,082 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-19 07:52:47,082 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-11-19 07:52:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-11-19 07:52:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-11-19 07:52:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-11-19 07:52:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:52:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:52:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2022-11-19 07:52:47,083 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2022-11-19 07:52:47,083 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:52:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:52:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:52:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:52:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-19 07:52:47,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-19 07:52:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2022-11-19 07:52:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2022-11-19 07:52:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:52:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-11-19 07:52:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-11-19 07:52:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:52:47,085 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:52:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:52:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 07:52:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 07:52:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-11-19 07:52:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-11-19 07:52:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:52:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-11-19 07:52:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-11-19 07:52:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-11-19 07:52:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-11-19 07:52:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 07:52:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 07:52:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:52:47,087 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:52:47,087 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:52:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:52:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:52:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:52:47,088 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 07:52:47,088 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 07:52:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-11-19 07:52:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-11-19 07:52:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-11-19 07:52:47,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-11-19 07:52:47,089 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:52:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:52:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:52:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:52:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-11-19 07:52:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-11-19 07:52:47,090 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 07:52:47,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 07:52:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-11-19 07:52:47,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-11-19 07:52:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-11-19 07:52:47,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-11-19 07:52:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:52:47,091 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-11-19 07:52:47,091 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-11-19 07:52:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:52:47,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:52:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-11-19 07:52:47,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-11-19 07:52:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:52:47,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:52:47,092 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-11-19 07:52:47,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-11-19 07:52:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-11-19 07:52:47,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-11-19 07:52:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2022-11-19 07:52:47,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2022-11-19 07:52:47,093 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-11-19 07:52:47,093 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-11-19 07:52:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:52:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:52:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-11-19 07:52:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-11-19 07:52:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:52:47,094 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:52:47,094 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 07:52:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 07:52:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 07:52:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 07:52:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:52:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-19 07:52:47,095 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-19 07:52:47,095 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-19 07:52:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:52:47,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:52:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 07:52:47,096 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 07:52:47,096 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-19 07:52:47,096 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-19 07:52:48,111 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:52:48,118 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:52:49,333 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:52:52,582 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume 1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296; [2022-11-19 07:52:52,583 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume !(1 != tlan_eisa_probe_~tmp___3~1#1 % 256 % 4294967296); [2022-11-19 07:52:52,583 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet334#1; [2022-11-19 07:52:52,583 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume !(16 == ~debug~0); [2022-11-19 07:52:52,583 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret322#1;havoc tlan_eisa_probe_#t~ret322#1;havoc tlan_eisa_probe_#t~nondet323#1; [2022-11-19 07:52:52,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: SUMMARY for call tlan_eisa_probe_#t~ret322#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-19 07:52:52,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume 16 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-19 07:52:52,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume !(16 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-19 07:52:52,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: tlan_eisa_probe_~irq~0#1 := 5; [2022-11-19 07:52:52,584 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2022-11-19 07:52:52,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet335#1; [2022-11-19 07:52:52,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume !(16 == ~debug~0); [2022-11-19 07:52:52,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: assume -2147483648 <= tlan_eisa_probe_#t~ret333#1 && tlan_eisa_probe_#t~ret333#1 <= 2147483647;tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret333#1;havoc tlan_eisa_probe_#t~ret333#1; [2022-11-19 07:52:52,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~ret329#1; [2022-11-19 07:52:52,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960: SUMMARY for call tlan_eisa_probe_#t~ret329#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-19 07:52:52,585 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume 32 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-19 07:52:52,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume !(32 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-19 07:52:52,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: tlan_eisa_probe_~irq~0#1 := 9; [2022-11-19 07:52:52,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume 0 != (if 0 == ~debug~0 then 0 else (if 16 == ~debug~0 then ~debug~0 else ~bitwiseAnd(~debug~0, 16)));havoc tlan_eisa_probe_#t~nondet326#1; [2022-11-19 07:52:52,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume !(0 != (if 0 == ~debug~0 then 0 else (if 16 == ~debug~0 then ~debug~0 else ~bitwiseAnd(~debug~0, 16)))); [2022-11-19 07:52:52,586 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume 0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616; [2022-11-19 07:52:52,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume !(0 == (tlan_eisa_probe_~tmp___1~5#1.base + tlan_eisa_probe_~tmp___1~5#1.offset) % 18446744073709551616); [2022-11-19 07:52:52,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume 8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296; [2022-11-19 07:52:52,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume !(8433 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296 && 16625 != tlan_eisa_probe_~device_id~1#1 % 65536 % 4294967296); [2022-11-19 07:52:52,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume 16 == ~debug~0;havoc tlan_eisa_probe_#t~nondet331#1; [2022-11-19 07:52:52,587 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume !(16 == ~debug~0); [2022-11-19 07:52:52,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume tlan_eisa_probe_~ioaddr~0#1 <= 36863; [2022-11-19 07:52:52,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume !(tlan_eisa_probe_~ioaddr~0#1 <= 36863); [2022-11-19 07:52:52,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979-2: SUMMARY for call tlan_eisa_probe_#t~ret332#1 := inb((if (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3264 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-19 07:52:52,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930: SUMMARY for call tlan_eisa_probe_#t~ret324#1 := inw((if (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3202 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-19 07:52:52,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret324#1;havoc tlan_eisa_probe_#t~ret324#1;havoc tlan_eisa_probe_#t~nondet325#1; [2022-11-19 07:52:52,588 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6964: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2022-11-19 07:52:52,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume 64 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-19 07:52:52,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume !(64 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-19 07:52:52,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume 0 != (if 0 == ~debug~0 then 0 else (if 16 == ~debug~0 then ~debug~0 else ~bitwiseAnd(~debug~0, 16))); [2022-11-19 07:52:52,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume !(0 != (if 0 == ~debug~0 then 0 else (if 16 == ~debug~0 then ~debug~0 else ~bitwiseAnd(~debug~0, 16)))); [2022-11-19 07:52:52,589 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: tlan_eisa_probe_~irq~0#1 := 10; [2022-11-19 07:52:52,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950: SUMMARY for call tlan_eisa_probe_#t~ret328#1 := inw((if (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3200 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-19 07:52:52,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret328#1;havoc tlan_eisa_probe_#t~ret328#1; [2022-11-19 07:52:52,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7017: SUMMARY for call tlan_eisa_probe_#t~ret333#1 := tlan_probe1(0, 0, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12, 0, 0); srcloc: null [2022-11-19 07:52:52,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935-1: call tlan_eisa_probe_#t~ret327#1.base, tlan_eisa_probe_#t~ret327#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret327#1.base, tlan_eisa_probe_#t~ret327#1.offset;havoc tlan_eisa_probe_#t~ret327#1.base, tlan_eisa_probe_#t~ret327#1.offset; [2022-11-19 07:52:52,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume 128 == tlan_eisa_probe_~tmp___4~0#1 % 256; [2022-11-19 07:52:52,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume !(128 == tlan_eisa_probe_~tmp___4~0#1 % 256); [2022-11-19 07:52:52,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume 4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296; [2022-11-19 07:52:52,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume !(4366 != tlan_eisa_probe_~tmp___2~2#1 % 65536 % 4294967296); [2022-11-19 07:52:52,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: tlan_eisa_probe_~irq~0#1 := 11; [2022-11-19 07:52:52,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~ret332#1; [2022-11-19 07:52:52,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: SUMMARY for call tlan_eisa_probe_#t~ret330#1 := inb((if (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 <= 2147483647 then (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 else (3204 + tlan_eisa_probe_~ioaddr~0#1) % 4294967296 % 4294967296 - 4294967296)); srcloc: null [2022-11-19 07:52:52,592 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7036-1: tlan_eisa_probe_~ioaddr~0#1 := 4096 + tlan_eisa_probe_~ioaddr~0#1; [2022-11-19 07:52:52,592 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret330#1;havoc tlan_eisa_probe_#t~ret330#1; [2022-11-19 07:52:52,592 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6954: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16); srcloc: null [2022-11-19 07:52:52,592 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume 0 != (if 0 == ~debug~0 then 0 else (if 16 == ~debug~0 then ~debug~0 else ~bitwiseAnd(~debug~0, 16))); [2022-11-19 07:52:52,592 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume !(0 != (if 0 == ~debug~0 then 0 else (if 16 == ~debug~0 then ~debug~0 else ~bitwiseAnd(~debug~0, 16)))); [2022-11-19 07:52:52,800 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:52:54,809 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:52:54,809 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:52:54,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:52:54 BoogieIcfgContainer [2022-11-19 07:52:54,814 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:52:54,817 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:52:54,817 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:52:54,821 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:52:54,821 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:52:42" (1/3) ... [2022-11-19 07:52:54,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a2bc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:52:54, skipping insertion in model container [2022-11-19 07:52:54,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:52:46" (2/3) ... [2022-11-19 07:52:54,822 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22a2bc03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:52:54, skipping insertion in model container [2022-11-19 07:52:54,822 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:52:54" (3/3) ... [2022-11-19 07:52:54,824 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-19 07:52:54,845 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:52:54,846 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:52:54,970 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:52:54,978 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;@60db43db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:52:54,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:52:54,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 1552 states, 841 states have (on average 1.2330558858501783) internal successors, (1037), 895 states have internal predecessors, (1037), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) [2022-11-19 07:52:55,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-19 07:52:55,013 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:52:55,014 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:52:55,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:52:55,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:52:55,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1343636132, now seen corresponding path program 1 times [2022-11-19 07:52:55,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:52:55,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40019296] [2022-11-19 07:52:55,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:52:55,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:52:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:52:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-19 07:52:56,120 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:52:56,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40019296] [2022-11-19 07:52:56,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40019296] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:52:56,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:52:56,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:52:56,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959271002] [2022-11-19 07:52:56,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:52:56,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:52:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:52:56,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:52:56,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:52:56,171 INFO L87 Difference]: Start difference. First operand has 1552 states, 841 states have (on average 1.2330558858501783) internal successors, (1037), 895 states have internal predecessors, (1037), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:52:58,504 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 [] [2022-11-19 07:53:00,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:00,777 INFO L93 Difference]: Finished difference Result 3100 states and 4501 transitions. [2022-11-19 07:53:00,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:00,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 137 [2022-11-19 07:53:00,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:00,812 INFO L225 Difference]: With dead ends: 3100 [2022-11-19 07:53:00,813 INFO L226 Difference]: Without dead ends: 1497 [2022-11-19 07:53:00,828 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 [2022-11-19 07:53:00,831 INFO L413 NwaCegarLoop]: 1997 mSDtfsCounter, 12 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 491 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 3983 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 491 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:00,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 3983 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 491 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-11-19 07:53:00,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2022-11-19 07:53:00,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1481. [2022-11-19 07:53:01,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1481 states, 811 states have (on average 1.2268803945745992) internal successors, (995), 862 states have internal predecessors, (995), 566 states have call successors, (566), 103 states have call predecessors, (566), 103 states have return successors, (566), 548 states have call predecessors, (566), 566 states have call successors, (566) [2022-11-19 07:53:01,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1481 states to 1481 states and 2127 transitions. [2022-11-19 07:53:01,026 INFO L78 Accepts]: Start accepts. Automaton has 1481 states and 2127 transitions. Word has length 137 [2022-11-19 07:53:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:01,029 INFO L495 AbstractCegarLoop]: Abstraction has 1481 states and 2127 transitions. [2022-11-19 07:53:01,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 07:53:01,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1481 states and 2127 transitions. [2022-11-19 07:53:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-19 07:53:01,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:01,045 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:01,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:53:01,046 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:01,047 INFO L85 PathProgramCache]: Analyzing trace with hash 705549011, now seen corresponding path program 1 times [2022-11-19 07:53:01,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:01,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789453014] [2022-11-19 07:53:01,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:01,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:01,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:01,677 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-11-19 07:53:01,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:01,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789453014] [2022-11-19 07:53:01,678 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789453014] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:01,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524719903] [2022-11-19 07:53:01,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:01,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:01,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:01,687 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:01,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:53:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:02,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 2962 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:53:03,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:03,046 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-19 07:53:03,046 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:53:03,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524719903] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:53:03,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:53:03,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:53:03,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699285921] [2022-11-19 07:53:03,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:53:03,049 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:53:03,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:53:03,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:53:03,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:03,050 INFO L87 Difference]: Start difference. First operand 1481 states and 2127 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:53:05,267 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 [] [2022-11-19 07:53:07,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:53:07,699 INFO L93 Difference]: Finished difference Result 2960 states and 4266 transitions. [2022-11-19 07:53:07,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:53:07,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 149 [2022-11-19 07:53:07,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:53:07,784 INFO L225 Difference]: With dead ends: 2960 [2022-11-19 07:53:07,790 INFO L226 Difference]: Without dead ends: 1493 [2022-11-19 07:53:07,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:53:07,802 INFO L413 NwaCegarLoop]: 1895 mSDtfsCounter, 6 mSDsluCounter, 1886 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3781 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:53:07,802 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3781 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 07:53:07,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1493 states. [2022-11-19 07:53:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1493 to 1487. [2022-11-19 07:53:07,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 816 states have (on average 1.2267156862745099) internal successors, (1001), 867 states have internal predecessors, (1001), 567 states have call successors, (567), 103 states have call predecessors, (567), 103 states have return successors, (567), 549 states have call predecessors, (567), 567 states have call successors, (567) [2022-11-19 07:53:07,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2135 transitions. [2022-11-19 07:53:07,882 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2135 transitions. Word has length 149 [2022-11-19 07:53:07,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:53:07,883 INFO L495 AbstractCegarLoop]: Abstraction has 1487 states and 2135 transitions. [2022-11-19 07:53:07,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-11-19 07:53:07,884 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2135 transitions. [2022-11-19 07:53:07,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-19 07:53:07,888 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:53:07,889 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:53:07,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:53:08,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:08,101 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:53:08,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:53:08,102 INFO L85 PathProgramCache]: Analyzing trace with hash 380119545, now seen corresponding path program 1 times [2022-11-19 07:53:08,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:53:08,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559031412] [2022-11-19 07:53:08,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:08,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:53:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:08,764 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-19 07:53:08,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:53:08,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559031412] [2022-11-19 07:53:08,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559031412] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:53:08,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267780936] [2022-11-19 07:53:08,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:53:08,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:53:08,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:53:08,771 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:53:08,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:53:10,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:53:10,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 3031 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:53:10,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:53:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-11-19 07:53:10,116 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:53:10,311 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-11-19 07:53:10,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267780936] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:53:10,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [856484036] [2022-11-19 07:53:10,336 INFO L159 IcfgInterpreter]: Started Sifa with 96 locations of interest [2022-11-19 07:53:10,336 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:53:10,341 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:53:10,347 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:53:10,347 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:53:16,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:16,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:16,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:16,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:16,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:16,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:16,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:16,976 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:53:16,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:53:16,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:53:16,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:53:16,980 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:53:16,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:53:17,000 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 29 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:53:18,095 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:53:18,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:53:18,134 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 49 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 41 [2022-11-19 07:58:56,853 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:58:57,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:58:57,042 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:285) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostconditionCall(PredicateTransformer.java:157) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.postCall(SymbolicTools.java:132) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretCallReturnSummary(DagInterpreter.java:218) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:207) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:266) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:147) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-19 07:58:57,055 INFO L158 Benchmark]: Toolchain (without parser) took 374513.26ms. Allocated memory was 142.6MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 99.2MB in the beginning and 632.9MB in the end (delta: -533.7MB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2022-11-19 07:58:57,055 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:58:57,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3725.17ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 99.2MB in the beginning and 102.3MB in the end (delta: -3.1MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. [2022-11-19 07:58:57,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 350.49ms. Allocated memory is still 197.1MB. Free memory was 102.3MB in the beginning and 112.9MB in the end (delta: -10.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-11-19 07:58:57,056 INFO L158 Benchmark]: Boogie Preprocessor took 343.15ms. Allocated memory is still 197.1MB. Free memory was 112.9MB in the beginning and 78.2MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-19 07:58:57,057 INFO L158 Benchmark]: RCFGBuilder took 7858.14ms. Allocated memory was 197.1MB in the beginning and 658.5MB in the end (delta: 461.4MB). Free memory was 78.2MB in the beginning and 453.9MB in the end (delta: -375.7MB). Peak memory consumption was 219.9MB. Max. memory is 16.1GB. [2022-11-19 07:58:57,057 INFO L158 Benchmark]: TraceAbstraction took 362228.56ms. Allocated memory was 658.5MB in the beginning and 1.7GB in the end (delta: 1.1GB). Free memory was 453.9MB in the beginning and 632.9MB in the end (delta: -179.0MB). Peak memory consumption was 995.7MB. Max. memory is 16.1GB. [2022-11-19 07:58:57,060 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 92.3MB. Free memory was 47.0MB in the beginning and 47.0MB in the end (delta: 75.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3725.17ms. Allocated memory was 142.6MB in the beginning and 197.1MB in the end (delta: 54.5MB). Free memory was 99.2MB in the beginning and 102.3MB in the end (delta: -3.1MB). Peak memory consumption was 82.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 350.49ms. Allocated memory is still 197.1MB. Free memory was 102.3MB in the beginning and 112.9MB in the end (delta: -10.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 343.15ms. Allocated memory is still 197.1MB. Free memory was 112.9MB in the beginning and 78.2MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * RCFGBuilder took 7858.14ms. Allocated memory was 197.1MB in the beginning and 658.5MB in the end (delta: 461.4MB). Free memory was 78.2MB in the beginning and 453.9MB in the end (delta: -375.7MB). Peak memory consumption was 219.9MB. Max. memory is 16.1GB. * TraceAbstraction took 362228.56ms. Allocated memory was 658.5MB in the beginning and 1.7GB in the end (delta: 1.1GB). Free memory was 453.9MB in the beginning and 632.9MB in the end (delta: -179.0MB). Peak memory consumption was 995.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-19 07:58:57,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:58:59,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:58:59,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:58:59,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:58:59,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:58:59,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:58:59,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:58:59,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:58:59,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:58:59,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:58:59,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:58:59,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:58:59,849 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:58:59,850 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:58:59,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:58:59,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:58:59,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:58:59,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:58:59,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:58:59,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:58:59,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:58:59,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:58:59,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:58:59,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:58:59,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:58:59,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:58:59,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:58:59,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:58:59,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:58:59,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:58:59,899 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:58:59,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:58:59,902 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:58:59,903 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:58:59,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:58:59,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:58:59,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:58:59,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:58:59,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:58:59,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:58:59,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:58:59,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 07:58:59,953 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:58:59,953 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:58:59,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:58:59,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:58:59,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:58:59,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:58:59,956 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:58:59,956 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:58:59,957 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:58:59,957 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:58:59,958 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:58:59,958 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:58:59,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:58:59,961 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:58:59,961 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:58:59,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:58:59,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:58:59,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 07:58:59,962 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 07:58:59,962 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 07:58:59,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:58:59,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:58:59,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:58:59,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:58:59,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 07:58:59,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:58:59,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:58:59,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:58:59,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:58:59,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:58:59,965 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 07:58:59,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 07:58:59,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:58:59,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:58:59,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 07:58:59,967 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe434f0112be26c4714543d386b3350bd2a9bdce09b4b83ffbdf4c55da2983b7 [2022-11-19 07:59:00,391 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:59:00,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:59:00,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:59:00,423 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:59:00,424 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:59:00,425 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-19 07:59:00,511 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/d5b558e0c/2b50156e3fd047cb8481316f3a96b3cf/FLAG546f38164 [2022-11-19 07:59:01,708 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:59:01,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-19 07:59:01,780 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/d5b558e0c/2b50156e3fd047cb8481316f3a96b3cf/FLAG546f38164 [2022-11-19 07:59:01,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/data/d5b558e0c/2b50156e3fd047cb8481316f3a96b3cf [2022-11-19 07:59:01,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:59:01,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:59:01,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:01,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:59:01,960 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:59:01,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:01" (1/1) ... [2022-11-19 07:59:01,962 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa64b7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:01, skipping insertion in model container [2022-11-19 07:59:01,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:59:01" (1/1) ... [2022-11-19 07:59:01,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:59:02,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:59:05,541 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-19 07:59:05,545 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-19 07:59:05,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:05,626 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-19 07:59:05,704 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:59:06,195 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-19 07:59:06,195 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-19 07:59:06,201 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:06,242 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:59:06,734 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339084,339097] [2022-11-19 07:59:06,735 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i[339229,339242] [2022-11-19 07:59:06,741 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:59:06,978 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:59:06,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06 WrapperNode [2022-11-19 07:59:06,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:59:06,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:06,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:59:06,981 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:59:06,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,360 INFO L138 Inliner]: procedures = 439, calls = 2331, calls flagged for inlining = 195, calls inlined = 180, statements flattened = 4730 [2022-11-19 07:59:07,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:59:07,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:59:07,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:59:07,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:59:07,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,622 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,698 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:59:07,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:59:07,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:59:07,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:59:07,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (1/1) ... [2022-11-19 07:59:07,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:59:07,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:59:07,739 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:59:07,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:59:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_resume [2022-11-19 07:59:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_resume [2022-11-19 07:59:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-19 07:59:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-19 07:59:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 07:59:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 07:59:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-19 07:59:07,812 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-19 07:59:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_write_reg [2022-11-19 07:59:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_write_reg [2022-11-19 07:59:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 07:59:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2022-11-19 07:59:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:59:07,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:59:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_3 [2022-11-19 07:59:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_3 [2022-11-19 07:59:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read8 [2022-11-19 07:59:07,814 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read8 [2022-11-19 07:59:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 07:59:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 07:59:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-19 07:59:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tlan_priv [2022-11-19 07:59:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_read_and_clear_stats [2022-11-19 07:59:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_read_and_clear_stats [2022-11-19 07:59:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_sync [2022-11-19 07:59:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_sync [2022-11-19 07:59:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 07:59:07,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 07:59:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:59:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 07:59:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 07:59:07,817 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 07:59:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 07:59:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 07:59:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 07:59:07,818 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 07:59:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:59:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2022-11-19 07:59:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-19 07:59:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-19 07:59:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-19 07:59:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 07:59:07,820 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 07:59:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_lists [2022-11-19 07:59:07,821 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_lists [2022-11-19 07:59:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_close [2022-11-19 07:59:07,822 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_close [2022-11-19 07:59:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:59:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:59:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_print [2022-11-19 07:59:07,823 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_print [2022-11-19 07:59:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-19 07:59:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-19 07:59:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-19 07:59:07,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tlan_priv [2022-11-19 07:59:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pci_unregister_driver [2022-11-19 07:59:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pci_unregister_driver [2022-11-19 07:59:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_probe1 [2022-11-19 07:59:07,825 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_probe1 [2022-11-19 07:59:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 07:59:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 07:59:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 07:59:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 07:59:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 07:59:07,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 07:59:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 07:59:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 07:59:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 07:59:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 07:59:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 07:59:07,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 07:59:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_timer [2022-11-19 07:59:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_timer [2022-11-19 07:59:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_timer [2022-11-19 07:59:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_timer [2022-11-19 07:59:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_3_2 [2022-11-19 07:59:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_3_2 [2022-11-19 07:59:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_stop [2022-11-19 07:59:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_stop [2022-11-19 07:59:07,831 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 07:59:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 07:59:07,832 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_88 [2022-11-19 07:59:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_88 [2022-11-19 07:59:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 07:59:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 07:59:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_remove_one [2022-11-19 07:59:07,834 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_remove_one [2022-11-19 07:59:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_get_skb [2022-11-19 07:59:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_get_skb [2022-11-19 07:59:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_byte [2022-11-19 07:59:07,836 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_byte [2022-11-19 07:59:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:59:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure inb_p [2022-11-19 07:59:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure inb_p [2022-11-19 07:59:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_poll [2022-11-19 07:59:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_poll [2022-11-19 07:59:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 07:59:07,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 07:59:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:59:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:59:07,838 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:59:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 07:59:07,839 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 07:59:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:59:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:59:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:07,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:59:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_free_lists [2022-11-19 07:59:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_free_lists [2022-11-19 07:59:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:59:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 07:59:07,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 07:59:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 07:59:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 07:59:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 07:59:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 07:59:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 07:59:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-19 07:59:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-19 07:59:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure outb_p [2022-11-19 07:59:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure outb_p [2022-11-19 07:59:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_store_skb [2022-11-19 07:59:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_store_skb [2022-11-19 07:59:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_tx_timeout [2022-11-19 07:59:07,855 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_tx_timeout [2022-11-19 07:59:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:59:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:59:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-19 07:59:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-19 07:59:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unregister_driver [2022-11-19 07:59:07,856 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unregister_driver [2022-11-19 07:59:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-19 07:59:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_up [2022-11-19 07:59:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_up [2022-11-19 07:59:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-19 07:59:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:59:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:59:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-19 07:59:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-19 07:59:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2022-11-19 07:59:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2022-11-19 07:59:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_handle_interrupt [2022-11-19 07:59:07,858 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_handle_interrupt [2022-11-19 07:59:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_start [2022-11-19 07:59:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_start [2022-11-19 07:59:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 07:59:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 07:59:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_finish_auto_neg [2022-11-19 07:59:07,859 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_finish_auto_neg [2022-11-19 07:59:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 07:59:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 07:59:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-19 07:59:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-19 07:59:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb_ip_align [2022-11-19 07:59:07,860 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb_ip_align [2022-11-19 07:59:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_start_link [2022-11-19 07:59:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_start_link [2022-11-19 07:59:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:59:07,861 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_multicast_list [2022-11-19 07:59:07,861 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_multicast_list [2022-11-19 07:59:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-19 07:59:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-19 07:59:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:59:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-19 07:59:07,862 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-19 07:59:07,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_8_2 [2022-11-19 07:59:07,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_8_2 [2022-11-19 07:59:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-19 07:59:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-19 07:59:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-19 07:59:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-19 07:59:07,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:59:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_print_list [2022-11-19 07:59:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_print_list [2022-11-19 07:59:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write16 [2022-11-19 07:59:07,864 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write16 [2022-11-19 07:59:07,864 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 07:59:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 07:59:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 07:59:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 07:59:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 07:59:07,865 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 07:59:07,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 07:59:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 07:59:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 07:59:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 07:59:07,866 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_finish_reset [2022-11-19 07:59:07,866 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_finish_reset [2022-11-19 07:59:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write32 [2022-11-19 07:59:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write32 [2022-11-19 07:59:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-19 07:59:07,867 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-19 07:59:07,867 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 07:59:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 07:59:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_set_mac [2022-11-19 07:59:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_set_mac [2022-11-19 07:59:07,868 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 07:59:07,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 07:59:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_ee_send_start [2022-11-19 07:59:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_ee_send_start [2022-11-19 07:59:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_read32 [2022-11-19 07:59:07,869 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_read32 [2022-11-19 07:59:07,869 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_dio_write8 [2022-11-19 07:59:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_dio_write8 [2022-11-19 07:59:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 07:59:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 07:59:07,870 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_power_down [2022-11-19 07:59:07,870 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_power_down [2022-11-19 07:59:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-19 07:59:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-19 07:59:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_reset_adapter [2022-11-19 07:59:07,871 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_reset_adapter [2022-11-19 07:59:07,871 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_send_data [2022-11-19 07:59:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_send_data [2022-11-19 07:59:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_phy_reset [2022-11-19 07:59:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_phy_reset [2022-11-19 07:59:07,872 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_mii_read_reg [2022-11-19 07:59:07,872 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_mii_read_reg [2022-11-19 07:59:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 07:59:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 07:59:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure tlan_open [2022-11-19 07:59:07,873 INFO L138 BoogieDeclarations]: Found implementation of procedure tlan_open [2022-11-19 07:59:07,873 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 07:59:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 07:59:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 07:59:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 07:59:07,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~C_ULONG~TO~VOID [2022-11-19 07:59:07,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~C_ULONG~TO~VOID [2022-11-19 07:59:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 07:59:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 07:59:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-11-19 07:59:07,875 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-19 07:59:07,875 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-19 07:59:07,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 07:59:07,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 07:59:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-19 07:59:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-19 07:59:07,882 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-19 07:59:07,882 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-19 07:59:09,074 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:59:09,085 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:59:21,899 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:59:51,241 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume 1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1); [2022-11-19 07:59:51,243 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6972: assume !(1bv32 != ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___3~1#1)); [2022-11-19 07:59:51,248 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet333#1; [2022-11-19 07:59:51,248 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7005: assume !(16bv32 == ~debug~0); [2022-11-19 07:59:51,248 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923-1: tlan_eisa_probe_~tmp~35#1 := tlan_eisa_probe_#t~ret321#1;havoc tlan_eisa_probe_#t~ret321#1;havoc tlan_eisa_probe_#t~nondet322#1; [2022-11-19 07:59:51,249 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6923: SUMMARY for call tlan_eisa_probe_#t~ret321#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-19 07:59:51,249 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume 16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-19 07:59:51,249 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6989: assume !(16bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-19 07:59:51,250 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6990: tlan_eisa_probe_~irq~0#1 := 5bv32; [2022-11-19 07:59:51,250 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-19 07:59:51,255 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet334#1; [2022-11-19 07:59:51,256 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6974-1: assume !(16bv32 == ~debug~0); [2022-11-19 07:59:51,256 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7024: tlan_eisa_probe_~rc~2#1 := tlan_eisa_probe_#t~ret332#1;havoc tlan_eisa_probe_#t~ret332#1; [2022-11-19 07:59:51,256 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960-1: tlan_eisa_probe_~device_id~1#1 := tlan_eisa_probe_#t~ret328#1;havoc tlan_eisa_probe_#t~ret328#1; [2022-11-19 07:59:51,256 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6960: SUMMARY for call tlan_eisa_probe_#t~ret328#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-19 07:59:51,256 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume 32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-19 07:59:51,257 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6993: assume !(32bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-19 07:59:51,257 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6994: tlan_eisa_probe_~irq~0#1 := 9bv32; [2022-11-19 07:59:51,257 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0);havoc tlan_eisa_probe_#t~nondet325#1; [2022-11-19 07:59:51,257 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6928-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-19 07:59:51,257 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume 0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset); [2022-11-19 07:59:51,258 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6945: assume !(0bv64 == ~bvadd64(tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset)); [2022-11-19 07:59:51,258 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume 8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1); [2022-11-19 07:59:51,258 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6962: assume !(8433bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1) && 16625bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~device_id~1#1)); [2022-11-19 07:59:51,258 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume 16bv32 == ~debug~0;havoc tlan_eisa_probe_#t~nondet330#1; [2022-11-19 07:59:51,258 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979: assume !(16bv32 == ~debug~0); [2022-11-19 07:59:51,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume ~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-11-19 07:59:51,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7045: assume !~bvsle64(tlan_eisa_probe_~ioaddr~0#1, 36863bv64); [2022-11-19 07:59:51,260 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6979-2: SUMMARY for call tlan_eisa_probe_#t~ret331#1 := inb(~bvadd32(3264bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-19 07:59:51,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930: SUMMARY for call tlan_eisa_probe_#t~ret323#1 := inw(~bvadd32(3202bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-19 07:59:51,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6930-1: tlan_eisa_probe_~tmp___0~12#1 := tlan_eisa_probe_#t~ret323#1;havoc tlan_eisa_probe_#t~ret323#1;havoc tlan_eisa_probe_#t~nondet324#1; [2022-11-19 07:59:51,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6964: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-19 07:59:51,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume 64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-19 07:59:51,261 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6997: assume !(64bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-19 07:59:51,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-11-19 07:59:51,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7047: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-19 07:59:51,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6998: tlan_eisa_probe_~irq~0#1 := 10bv32; [2022-11-19 07:59:51,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950: SUMMARY for call tlan_eisa_probe_#t~ret327#1 := inw(~bvadd32(3200bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-19 07:59:51,262 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6950-1: tlan_eisa_probe_~tmp___2~2#1 := tlan_eisa_probe_#t~ret327#1;havoc tlan_eisa_probe_#t~ret327#1; [2022-11-19 07:59:51,263 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7017: SUMMARY for call tlan_eisa_probe_#t~ret332#1 := tlan_probe1(0bv64, 0bv64, tlan_eisa_probe_~ioaddr~0#1, tlan_eisa_probe_~irq~0#1, 12bv32, 0bv64, 0bv64); srcloc: null [2022-11-19 07:59:51,263 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6935-1: call tlan_eisa_probe_#t~ret326#1.base, tlan_eisa_probe_#t~ret326#1.offset := __request_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64, ~#tlan_signature~0.base, ~#tlan_signature~0.offset, 0bv32);tlan_eisa_probe_~tmp___1~5#1.base, tlan_eisa_probe_~tmp___1~5#1.offset := tlan_eisa_probe_#t~ret326#1.base, tlan_eisa_probe_#t~ret326#1.offset;havoc tlan_eisa_probe_#t~ret326#1.base, tlan_eisa_probe_#t~ret326#1.offset; [2022-11-19 07:59:51,263 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume 128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1); [2022-11-19 07:59:51,263 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7001: assume !(128bv32 == ~zero_extendFrom8To32(tlan_eisa_probe_~tmp___4~0#1)); [2022-11-19 07:59:51,263 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume 4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1); [2022-11-19 07:59:51,264 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6952: assume !(4366bv32 != ~zero_extendFrom16To32(tlan_eisa_probe_~tmp___2~2#1)); [2022-11-19 07:59:51,264 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7002: tlan_eisa_probe_~irq~0#1 := 11bv32; [2022-11-19 07:59:51,264 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6986: tlan_eisa_probe_~tmp___4~0#1 := tlan_eisa_probe_#t~ret331#1;havoc tlan_eisa_probe_#t~ret331#1; [2022-11-19 07:59:51,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970: SUMMARY for call tlan_eisa_probe_#t~ret329#1 := inb(~bvadd32(3204bv32, tlan_eisa_probe_~ioaddr~0#1[32:0])); srcloc: null [2022-11-19 07:59:51,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L7036-1: tlan_eisa_probe_~ioaddr~0#1 := ~bvadd64(4096bv64, tlan_eisa_probe_~ioaddr~0#1); [2022-11-19 07:59:51,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6970-1: tlan_eisa_probe_~tmp___3~1#1 := tlan_eisa_probe_#t~ret329#1;havoc tlan_eisa_probe_#t~ret329#1; [2022-11-19 07:59:51,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6954: SUMMARY for call __release_region(~#ioport_resource~0.base, ~#ioport_resource~0.offset, tlan_eisa_probe_~ioaddr~0#1, 16bv64); srcloc: null [2022-11-19 07:59:51,265 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume 0bv32 != ~bvand32(16bv32, ~debug~0); [2022-11-19 07:59:51,266 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L6921-1: assume !(0bv32 != ~bvand32(16bv32, ~debug~0)); [2022-11-19 07:59:51,421 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:59:51,467 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:59:51,468 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 07:59:51,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:51 BoogieIcfgContainer [2022-11-19 07:59:51,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:59:51,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:59:51,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:59:51,483 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:59:51,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:59:01" (1/3) ... [2022-11-19 07:59:51,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ff2b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:51, skipping insertion in model container [2022-11-19 07:59:51,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:59:06" (2/3) ... [2022-11-19 07:59:51,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34ff2b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:59:51, skipping insertion in model container [2022-11-19 07:59:51,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:59:51" (3/3) ... [2022-11-19 07:59:51,486 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-ti-tlan.cil.i [2022-11-19 07:59:51,507 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:59:51,507 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:59:51,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:59:51,632 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;@cbb4307, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:59:51,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:59:51,644 INFO L276 IsEmpty]: Start isEmpty. Operand has 1974 states, 1263 states have (on average 1.2517814726840855) internal successors, (1581), 1317 states have internal predecessors, (1581), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) [2022-11-19 07:59:51,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2022-11-19 07:59:51,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:51,686 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:51,687 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:51,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:51,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1732274290, now seen corresponding path program 1 times [2022-11-19 07:59:51,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:59:51,715 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [467072985] [2022-11-19 07:59:51,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:51,716 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:59:51,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:59:51,724 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:59:51,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 07:59:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:59:54,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 2116 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 07:59:54,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:59:54,524 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2022-11-19 07:59:54,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:59:54,525 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 07:59:54,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [467072985] [2022-11-19 07:59:54,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [467072985] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:59:54,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:59:54,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:59:54,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461971066] [2022-11-19 07:59:54,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:59:54,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:59:54,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 07:59:54,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:59:54,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:59:54,618 INFO L87 Difference]: Start difference. First operand has 1974 states, 1263 states have (on average 1.2517814726840855) internal successors, (1581), 1317 states have internal predecessors, (1581), 602 states have call successors, (602), 108 states have call predecessors, (602), 107 states have return successors, (598), 580 states have call predecessors, (598), 598 states have call successors, (598) Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 07:59:56,827 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:59:57,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:59:57,728 INFO L93 Difference]: Finished difference Result 5649 states and 8191 transitions. [2022-11-19 07:59:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:59:57,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) Word has length 172 [2022-11-19 07:59:57,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:59:57,803 INFO L225 Difference]: With dead ends: 5649 [2022-11-19 07:59:57,804 INFO L226 Difference]: Without dead ends: 3514 [2022-11-19 07:59:57,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:59:57,852 INFO L413 NwaCegarLoop]: 3875 mSDtfsCounter, 2394 mSDsluCounter, 2677 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 30 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2394 SdHoareTripleChecker+Valid, 6552 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:59:57,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2394 Valid, 6552 Invalid, 119 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 88 Invalid, 1 Unknown, 0 Unchecked, 2.6s Time] [2022-11-19 07:59:57,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3514 states. [2022-11-19 07:59:58,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3514 to 3497. [2022-11-19 07:59:58,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2262 states have (on average 1.2338638373121131) internal successors, (2791), 2358 states have internal predecessors, (2791), 1033 states have call successors, (1033), 201 states have call predecessors, (1033), 201 states have return successors, (1042), 999 states have call predecessors, (1042), 1033 states have call successors, (1042) [2022-11-19 07:59:58,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 4866 transitions. [2022-11-19 07:59:58,296 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 4866 transitions. Word has length 172 [2022-11-19 07:59:58,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:59:58,299 INFO L495 AbstractCegarLoop]: Abstraction has 3497 states and 4866 transitions. [2022-11-19 07:59:58,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 1 states have call successors, (24), 1 states have call predecessors, (24), 1 states have return successors, (19), 1 states have call predecessors, (19), 1 states have call successors, (19) [2022-11-19 07:59:58,300 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 4866 transitions. [2022-11-19 07:59:58,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2022-11-19 07:59:58,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:59:58,318 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:59:58,381 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:59:58,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:59:58,538 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:59:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:59:58,538 INFO L85 PathProgramCache]: Analyzing trace with hash 253847956, now seen corresponding path program 1 times [2022-11-19 07:59:58,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 07:59:58,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18688478] [2022-11-19 07:59:58,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:59:58,543 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 07:59:58,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 07:59:58,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 07:59:58,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:00:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:01,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-19 08:00:01,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:02,784 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-11-19 08:00:02,784 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:00:02,785 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:00:02,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [18688478] [2022-11-19 08:00:02,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [18688478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:02,785 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:02,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-19 08:00:02,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313271757] [2022-11-19 08:00:02,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:02,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:00:02,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:00:02,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:00:02,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-11-19 08:00:02,789 INFO L87 Difference]: Start difference. First operand 3497 states and 4866 transitions. Second operand has 12 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (22), 6 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-19 08:00:05,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:05,496 INFO L93 Difference]: Finished difference Result 6983 states and 9716 transitions. [2022-11-19 08:00:05,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-19 08:00:05,497 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (22), 6 states have call predecessors, (22), 4 states have call successors, (22) Word has length 174 [2022-11-19 08:00:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:05,544 INFO L225 Difference]: With dead ends: 6983 [2022-11-19 08:00:05,545 INFO L226 Difference]: Without dead ends: 3501 [2022-11-19 08:00:05,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:00:05,571 INFO L413 NwaCegarLoop]: 2608 mSDtfsCounter, 73 mSDsluCounter, 18085 mSDsCounter, 0 mSdLazyCounter, 330 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 20693 SdHoareTripleChecker+Invalid, 332 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:05,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 20693 Invalid, 332 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 330 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-19 08:00:05,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3501 states. [2022-11-19 08:00:05,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3501 to 3497. [2022-11-19 08:00:05,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3497 states, 2262 states have (on average 1.23342175066313) internal successors, (2790), 2357 states have internal predecessors, (2790), 1033 states have call successors, (1033), 201 states have call predecessors, (1033), 201 states have return successors, (1042), 999 states have call predecessors, (1042), 1033 states have call successors, (1042) [2022-11-19 08:00:05,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3497 states to 3497 states and 4865 transitions. [2022-11-19 08:00:05,818 INFO L78 Accepts]: Start accepts. Automaton has 3497 states and 4865 transitions. Word has length 174 [2022-11-19 08:00:05,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:05,820 INFO L495 AbstractCegarLoop]: Abstraction has 3497 states and 4865 transitions. [2022-11-19 08:00:05,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.9) internal successors, (89), 9 states have internal predecessors, (89), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (22), 6 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-19 08:00:05,821 INFO L276 IsEmpty]: Start isEmpty. Operand 3497 states and 4865 transitions. [2022-11-19 08:00:05,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2022-11-19 08:00:05,826 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:05,827 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:05,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:06,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:06,047 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:06,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:06,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1814807791, now seen corresponding path program 1 times [2022-11-19 08:00:06,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:00:06,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1526382314] [2022-11-19 08:00:06,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:06,052 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:06,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:00:06,058 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:00:06,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-19 08:00:08,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:08,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 2128 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 08:00:08,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:09,356 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-19 08:00:09,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:00:09,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:00:09,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1526382314] [2022-11-19 08:00:09,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1526382314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:09,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:09,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-11-19 08:00:09,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298984570] [2022-11-19 08:00:09,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:09,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-19 08:00:09,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:00:09,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-19 08:00:09,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2022-11-19 08:00:09,360 INFO L87 Difference]: Start difference. First operand 3497 states and 4865 transitions. Second operand has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-19 08:00:13,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:13,141 INFO L93 Difference]: Finished difference Result 7049 states and 9805 transitions. [2022-11-19 08:00:13,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-19 08:00:13,142 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) Word has length 176 [2022-11-19 08:00:13,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:13,176 INFO L225 Difference]: With dead ends: 7049 [2022-11-19 08:00:13,176 INFO L226 Difference]: Without dead ends: 3569 [2022-11-19 08:00:13,202 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:00:13,207 INFO L413 NwaCegarLoop]: 2622 mSDtfsCounter, 60 mSDsluCounter, 31303 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 33925 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:13,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 33925 Invalid, 600 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-11-19 08:00:13,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2022-11-19 08:00:13,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3519. [2022-11-19 08:00:13,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 2278 states have (on average 1.231782265144864) internal successors, (2806), 2373 states have internal predecessors, (2806), 1037 states have call successors, (1037), 201 states have call predecessors, (1037), 203 states have return successors, (1048), 1005 states have call predecessors, (1048), 1037 states have call successors, (1048) [2022-11-19 08:00:13,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 4891 transitions. [2022-11-19 08:00:13,454 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 4891 transitions. Word has length 176 [2022-11-19 08:00:13,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:13,457 INFO L495 AbstractCegarLoop]: Abstraction has 3519 states and 4891 transitions. [2022-11-19 08:00:13,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.153846153846154) internal successors, (80), 12 states have internal predecessors, (80), 5 states have call successors, (25), 2 states have call predecessors, (25), 5 states have return successors, (20), 6 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-19 08:00:13,457 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 4891 transitions. [2022-11-19 08:00:13,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-11-19 08:00:13,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:13,462 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:13,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:13,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:13,682 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:13,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1967285099, now seen corresponding path program 1 times [2022-11-19 08:00:13,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:00:13,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [249203275] [2022-11-19 08:00:13,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:13,688 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:13,688 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:00:13,690 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:00:13,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-19 08:00:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:15,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 2139 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:00:15,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:16,056 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-11-19 08:00:16,056 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:00:16,057 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:00:16,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [249203275] [2022-11-19 08:00:16,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [249203275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:16,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:16,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:00:16,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004912855] [2022-11-19 08:00:16,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:16,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:16,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:00:16,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:16,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:16,059 INFO L87 Difference]: Start difference. First operand 3519 states and 4891 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:00:18,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:00:18,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:18,543 INFO L93 Difference]: Finished difference Result 7069 states and 9835 transitions. [2022-11-19 08:00:18,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:18,545 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 180 [2022-11-19 08:00:18,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:18,579 INFO L225 Difference]: With dead ends: 7069 [2022-11-19 08:00:18,580 INFO L226 Difference]: Without dead ends: 3569 [2022-11-19 08:00:18,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:00:18,611 INFO L413 NwaCegarLoop]: 2652 mSDtfsCounter, 33 mSDsluCounter, 2605 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 5257 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:18,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 5257 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 19 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 08:00:18,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3569 states. [2022-11-19 08:00:18,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3569 to 3561. [2022-11-19 08:00:18,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3561 states, 2308 states have (on average 1.2305025996533796) internal successors, (2840), 2403 states have internal predecessors, (2840), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 203 states have return successors, (1060), 1017 states have call predecessors, (1060), 1049 states have call successors, (1060) [2022-11-19 08:00:18,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3561 states to 3561 states and 4949 transitions. [2022-11-19 08:00:18,929 INFO L78 Accepts]: Start accepts. Automaton has 3561 states and 4949 transitions. Word has length 180 [2022-11-19 08:00:18,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:18,933 INFO L495 AbstractCegarLoop]: Abstraction has 3561 states and 4949 transitions. [2022-11-19 08:00:18,934 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-11-19 08:00:18,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3561 states and 4949 transitions. [2022-11-19 08:00:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-19 08:00:18,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:18,940 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:19,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:19,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:19,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:19,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:19,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1135154616, now seen corresponding path program 1 times [2022-11-19 08:00:19,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:00:19,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851587601] [2022-11-19 08:00:19,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:19,167 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:19,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:00:19,169 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:00:19,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 08:00:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:21,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 2147 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-19 08:00:21,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:22,501 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-11-19 08:00:22,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:00:22,502 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:00:22,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [851587601] [2022-11-19 08:00:22,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [851587601] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:22,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:00:22,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-19 08:00:22,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937014549] [2022-11-19 08:00:22,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:22,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 08:00:22,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:00:22,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 08:00:22,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2022-11-19 08:00:22,506 INFO L87 Difference]: Start difference. First operand 3561 states and 4949 transitions. Second operand has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2022-11-19 08:00:26,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:26,655 INFO L93 Difference]: Finished difference Result 7310 states and 10178 transitions. [2022-11-19 08:00:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-19 08:00:26,656 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) Word has length 184 [2022-11-19 08:00:26,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:26,684 INFO L225 Difference]: With dead ends: 7310 [2022-11-19 08:00:26,685 INFO L226 Difference]: Without dead ends: 3766 [2022-11-19 08:00:26,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=112, Invalid=644, Unknown=0, NotChecked=0, Total=756 [2022-11-19 08:00:26,705 INFO L413 NwaCegarLoop]: 2702 mSDtfsCounter, 187 mSDsluCounter, 34878 mSDsCounter, 0 mSdLazyCounter, 629 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 37580 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:26,706 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 37580 Invalid, 667 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [38 Valid, 629 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 08:00:26,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3766 states. [2022-11-19 08:00:26,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3766 to 3565. [2022-11-19 08:00:26,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 2310 states have (on average 1.2303030303030302) internal successors, (2842), 2407 states have internal predecessors, (2842), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-19 08:00:26,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4955 transitions. [2022-11-19 08:00:26,966 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4955 transitions. Word has length 184 [2022-11-19 08:00:26,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:26,968 INFO L495 AbstractCegarLoop]: Abstraction has 3565 states and 4955 transitions. [2022-11-19 08:00:26,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.142857142857143) internal successors, (86), 13 states have internal predecessors, (86), 6 states have call successors, (26), 2 states have call predecessors, (26), 5 states have return successors, (21), 7 states have call predecessors, (21), 6 states have call successors, (21) [2022-11-19 08:00:26,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4955 transitions. [2022-11-19 08:00:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-19 08:00:26,974 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:26,974 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:27,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:27,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:27,195 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:27,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:27,196 INFO L85 PathProgramCache]: Analyzing trace with hash 121126379, now seen corresponding path program 1 times [2022-11-19 08:00:27,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:00:27,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307375465] [2022-11-19 08:00:27,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:27,205 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:27,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:00:27,206 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:00:27,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-19 08:00:30,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:30,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:00:30,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:32,219 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:00:32,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:00:35,457 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:00:35,457 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:00:35,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307375465] [2022-11-19 08:00:35,457 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307375465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:00:35,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1799422989] [2022-11-19 08:00:35,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:35,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:00:35,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:00:35,462 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:00:35,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2022-11-19 08:00:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:37,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:00:37,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:39,466 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:00:39,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:00:39,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1799422989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:39,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:00:39,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:00:39,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415854220] [2022-11-19 08:00:39,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:39,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:39,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:00:39,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:39,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:00:39,470 INFO L87 Difference]: Start difference. First operand 3565 states and 4955 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:00:39,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:39,713 INFO L93 Difference]: Finished difference Result 7111 states and 9934 transitions. [2022-11-19 08:00:39,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:39,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 244 [2022-11-19 08:00:39,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:39,748 INFO L225 Difference]: With dead ends: 7111 [2022-11-19 08:00:39,748 INFO L226 Difference]: Without dead ends: 3565 [2022-11-19 08:00:39,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:00:39,770 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 2463 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2463 SdHoareTripleChecker+Valid, 2636 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:39,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2463 Valid, 2636 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:00:39,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-19 08:00:40,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3565. [2022-11-19 08:00:40,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 2310 states have (on average 1.2294372294372293) internal successors, (2840), 2407 states have internal predecessors, (2840), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-19 08:00:40,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4953 transitions. [2022-11-19 08:00:40,061 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4953 transitions. Word has length 244 [2022-11-19 08:00:40,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:40,062 INFO L495 AbstractCegarLoop]: Abstraction has 3565 states and 4953 transitions. [2022-11-19 08:00:40,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 2 states have internal predecessors, (118), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:00:40,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4953 transitions. [2022-11-19 08:00:40,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-19 08:00:40,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:40,067 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:40,138 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:40,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:40,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:00:40,488 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:40,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:40,488 INFO L85 PathProgramCache]: Analyzing trace with hash -1822792335, now seen corresponding path program 1 times [2022-11-19 08:00:40,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:00:40,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [167275253] [2022-11-19 08:00:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:40,492 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:40,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:00:40,494 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:00:40,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-19 08:00:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:43,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 2882 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:00:43,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:00:45,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:00:48,501 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:00:48,501 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:00:48,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [167275253] [2022-11-19 08:00:48,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [167275253] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:00:48,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1493221098] [2022-11-19 08:00:48,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:48,502 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:00:48,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:00:48,505 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:00:48,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-19 08:00:50,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:50,823 INFO L263 TraceCheckSpWp]: Trace formula consists of 2882 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:00:50,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:52,662 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:00:52,663 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:00:52,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1493221098] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:00:52,663 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:00:52,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:00:52,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107067064] [2022-11-19 08:00:52,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:00:52,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:00:52,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:00:52,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:00:52,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:00:52,666 INFO L87 Difference]: Start difference. First operand 3565 states and 4953 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:00:52,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:00:52,964 INFO L93 Difference]: Finished difference Result 7111 states and 9930 transitions. [2022-11-19 08:00:52,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:00:52,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 245 [2022-11-19 08:00:52,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:00:52,995 INFO L225 Difference]: With dead ends: 7111 [2022-11-19 08:00:52,995 INFO L226 Difference]: Without dead ends: 3565 [2022-11-19 08:00:53,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:00:53,018 INFO L413 NwaCegarLoop]: 2635 mSDtfsCounter, 2461 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2461 SdHoareTripleChecker+Valid, 2635 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:00:53,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2461 Valid, 2635 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:00:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-19 08:00:53,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3565. [2022-11-19 08:00:53,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 2310 states have (on average 1.2285714285714286) internal successors, (2838), 2407 states have internal predecessors, (2838), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-19 08:00:53,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4951 transitions. [2022-11-19 08:00:53,356 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4951 transitions. Word has length 245 [2022-11-19 08:00:53,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:00:53,358 INFO L495 AbstractCegarLoop]: Abstraction has 3565 states and 4951 transitions. [2022-11-19 08:00:53,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:00:53,358 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4951 transitions. [2022-11-19 08:00:53,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-19 08:00:53,363 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:00:53,364 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:00:53,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2022-11-19 08:00:53,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-19 08:00:53,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:53,786 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:00:53,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:00:53,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1840213721, now seen corresponding path program 1 times [2022-11-19 08:00:53,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:00:53,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1827232568] [2022-11-19 08:00:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:00:53,790 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:00:53,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:00:53,791 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:00:53,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-19 08:00:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:00:56,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 2883 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:00:56,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:00:58,549 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:00:58,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:01:01,469 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:01,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1827232568] [2022-11-19 08:01:01,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1827232568] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:01,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1466312499] [2022-11-19 08:01:01,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:01,470 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:01,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:01:01,471 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:01:01,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2022-11-19 08:01:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:03,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 2883 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:01:03,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:05,532 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:01:05,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:05,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1466312499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:05,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:01:05,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:01:05,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423506860] [2022-11-19 08:01:05,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:05,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:05,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:05,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:05,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:05,536 INFO L87 Difference]: Start difference. First operand 3565 states and 4951 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:05,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:05,824 INFO L93 Difference]: Finished difference Result 7111 states and 9926 transitions. [2022-11-19 08:01:05,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:05,824 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 246 [2022-11-19 08:01:05,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:05,847 INFO L225 Difference]: With dead ends: 7111 [2022-11-19 08:01:05,847 INFO L226 Difference]: Without dead ends: 3565 [2022-11-19 08:01:05,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 711 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:05,864 INFO L413 NwaCegarLoop]: 2634 mSDtfsCounter, 2459 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2459 SdHoareTripleChecker+Valid, 2634 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:05,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2459 Valid, 2634 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:05,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-19 08:01:06,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3565. [2022-11-19 08:01:06,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 2310 states have (on average 1.2277056277056277) internal successors, (2836), 2407 states have internal predecessors, (2836), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-19 08:01:06,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4949 transitions. [2022-11-19 08:01:06,180 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4949 transitions. Word has length 246 [2022-11-19 08:01:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:06,181 INFO L495 AbstractCegarLoop]: Abstraction has 3565 states and 4949 transitions. [2022-11-19 08:01:06,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4949 transitions. [2022-11-19 08:01:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-19 08:01:06,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:06,187 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:06,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:06,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2022-11-19 08:01:06,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:06,604 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:06,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:06,604 INFO L85 PathProgramCache]: Analyzing trace with hash 2029207213, now seen corresponding path program 1 times [2022-11-19 08:01:06,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:06,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [70564914] [2022-11-19 08:01:06,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:06,606 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:06,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:06,607 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:06,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-19 08:01:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:09,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:01:09,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:11,123 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:01:11,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:13,991 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:01:13,991 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:13,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [70564914] [2022-11-19 08:01:13,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [70564914] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:13,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2114968522] [2022-11-19 08:01:13,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:13,991 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:13,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:01:13,995 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:01:14,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2022-11-19 08:01:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:16,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 2884 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:01:16,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:18,169 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:01:18,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:18,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2114968522] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:18,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:01:18,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:01:18,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656395793] [2022-11-19 08:01:18,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:18,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:18,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:18,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:18,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:18,172 INFO L87 Difference]: Start difference. First operand 3565 states and 4949 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:18,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:18,423 INFO L93 Difference]: Finished difference Result 7111 states and 9922 transitions. [2022-11-19 08:01:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:18,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 247 [2022-11-19 08:01:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:18,444 INFO L225 Difference]: With dead ends: 7111 [2022-11-19 08:01:18,444 INFO L226 Difference]: Without dead ends: 3565 [2022-11-19 08:01:18,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 714 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:18,455 INFO L413 NwaCegarLoop]: 2633 mSDtfsCounter, 2457 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2457 SdHoareTripleChecker+Valid, 2633 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:18,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2457 Valid, 2633 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:18,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-19 08:01:18,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3565. [2022-11-19 08:01:18,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 2310 states have (on average 1.2268398268398268) internal successors, (2834), 2407 states have internal predecessors, (2834), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-19 08:01:18,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4947 transitions. [2022-11-19 08:01:18,843 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4947 transitions. Word has length 247 [2022-11-19 08:01:18,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:18,843 INFO L495 AbstractCegarLoop]: Abstraction has 3565 states and 4947 transitions. [2022-11-19 08:01:18,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:18,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4947 transitions. [2022-11-19 08:01:18,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-19 08:01:18,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:18,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:18,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:19,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:19,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:19,271 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:19,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:19,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1836688483, now seen corresponding path program 1 times [2022-11-19 08:01:19,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:19,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [996655399] [2022-11-19 08:01:19,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:19,274 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:19,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:19,275 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:19,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-19 08:01:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:22,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 2885 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:01:22,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:23,854 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:01:23,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:26,712 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:01:26,712 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:26,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [996655399] [2022-11-19 08:01:26,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [996655399] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:26,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [173940526] [2022-11-19 08:01:26,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:26,713 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:26,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:01:26,715 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:01:26,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2022-11-19 08:01:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:29,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 2885 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:01:29,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:30,836 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:01:30,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:30,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [173940526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:30,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:01:30,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:01:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862728455] [2022-11-19 08:01:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:30,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:30,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:30,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:30,839 INFO L87 Difference]: Start difference. First operand 3565 states and 4947 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:31,102 INFO L93 Difference]: Finished difference Result 7111 states and 9918 transitions. [2022-11-19 08:01:31,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:31,103 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 248 [2022-11-19 08:01:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:31,125 INFO L225 Difference]: With dead ends: 7111 [2022-11-19 08:01:31,126 INFO L226 Difference]: Without dead ends: 3565 [2022-11-19 08:01:31,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 717 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:31,144 INFO L413 NwaCegarLoop]: 2632 mSDtfsCounter, 2455 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 2632 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:31,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 2632 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:31,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-19 08:01:31,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3565. [2022-11-19 08:01:31,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 2310 states have (on average 1.225974025974026) internal successors, (2832), 2407 states have internal predecessors, (2832), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-19 08:01:31,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4945 transitions. [2022-11-19 08:01:31,575 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4945 transitions. Word has length 248 [2022-11-19 08:01:31,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:31,576 INFO L495 AbstractCegarLoop]: Abstraction has 3565 states and 4945 transitions. [2022-11-19 08:01:31,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:31,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4945 transitions. [2022-11-19 08:01:31,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-19 08:01:31,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:31,580 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:31,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:31,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:31,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:31,995 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:31,996 INFO L85 PathProgramCache]: Analyzing trace with hash 278091753, now seen corresponding path program 1 times [2022-11-19 08:01:31,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:31,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [526802348] [2022-11-19 08:01:31,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:31,999 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:31,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:32,003 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:32,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-19 08:01:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:35,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:01:35,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:01:36,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:39,455 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:01:39,456 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:39,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [526802348] [2022-11-19 08:01:39,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [526802348] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:39,456 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [829961370] [2022-11-19 08:01:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:39,456 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:39,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:01:39,459 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:01:39,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2022-11-19 08:01:42,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:42,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 2886 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:01:42,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:43,790 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:01:43,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:43,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [829961370] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:43,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:01:43,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:01:43,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896781877] [2022-11-19 08:01:43,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:43,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:01:43,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:43,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:01:43,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:43,793 INFO L87 Difference]: Start difference. First operand 3565 states and 4945 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:44,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:44,082 INFO L93 Difference]: Finished difference Result 7111 states and 9914 transitions. [2022-11-19 08:01:44,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:01:44,082 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) Word has length 249 [2022-11-19 08:01:44,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:44,105 INFO L225 Difference]: With dead ends: 7111 [2022-11-19 08:01:44,106 INFO L226 Difference]: Without dead ends: 3565 [2022-11-19 08:01:44,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 720 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:01:44,123 INFO L413 NwaCegarLoop]: 2631 mSDtfsCounter, 2453 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:44,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 2631 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:01:44,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3565 states. [2022-11-19 08:01:44,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3565 to 3565. [2022-11-19 08:01:44,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 2310 states have (on average 1.225108225108225) internal successors, (2830), 2407 states have internal predecessors, (2830), 1049 states have call successors, (1049), 201 states have call predecessors, (1049), 205 states have return successors, (1064), 1017 states have call predecessors, (1064), 1049 states have call successors, (1064) [2022-11-19 08:01:44,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4943 transitions. [2022-11-19 08:01:44,689 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4943 transitions. Word has length 249 [2022-11-19 08:01:44,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:44,690 INFO L495 AbstractCegarLoop]: Abstraction has 3565 states and 4943 transitions. [2022-11-19 08:01:44,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (34), 1 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 1 states have call successors, (28) [2022-11-19 08:01:44,691 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4943 transitions. [2022-11-19 08:01:44,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-19 08:01:44,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:44,696 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:44,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:44,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:45,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:45,120 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:45,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:45,120 INFO L85 PathProgramCache]: Analyzing trace with hash -679250017, now seen corresponding path program 1 times [2022-11-19 08:01:45,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:45,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [990123757] [2022-11-19 08:01:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:45,123 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:45,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:45,124 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:45,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-19 08:01:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:48,266 INFO L263 TraceCheckSpWp]: Trace formula consists of 2887 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:01:48,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:01:49,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:01:52,579 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:01:52,579 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:01:52,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [990123757] [2022-11-19 08:01:52,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [990123757] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:01:52,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [188348421] [2022-11-19 08:01:52,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:52,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:52,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:01:52,587 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:01:52,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2022-11-19 08:01:55,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:01:55,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 2887 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:01:55,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:01:55,692 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-19 08:01:55,692 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:01:55,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [188348421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:01:55,693 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:01:55,693 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [15, 13] total 27 [2022-11-19 08:01:55,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381933648] [2022-11-19 08:01:55,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:01:55,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:01:55,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:01:55,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:01:55,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=626, Unknown=0, NotChecked=0, Total=702 [2022-11-19 08:01:55,695 INFO L87 Difference]: Start difference. First operand 3565 states and 4943 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 08:01:56,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:01:56,380 INFO L93 Difference]: Finished difference Result 7143 states and 9917 transitions. [2022-11-19 08:01:56,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:01:56,381 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 250 [2022-11-19 08:01:56,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:01:56,399 INFO L225 Difference]: With dead ends: 7143 [2022-11-19 08:01:56,400 INFO L226 Difference]: Without dead ends: 3597 [2022-11-19 08:01:56,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 748 GetRequests, 722 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-11-19 08:01:56,417 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 19 mSDsluCounter, 5259 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 7910 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:01:56,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 7910 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:01:56,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2022-11-19 08:01:56,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3581. [2022-11-19 08:01:56,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3581 states, 2322 states have (on average 1.2256675279931093) internal successors, (2846), 2421 states have internal predecessors, (2846), 1053 states have call successors, (1053), 201 states have call predecessors, (1053), 205 states have return successors, (1068), 1021 states have call predecessors, (1068), 1053 states have call successors, (1068) [2022-11-19 08:01:56,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3581 states to 3581 states and 4967 transitions. [2022-11-19 08:01:56,874 INFO L78 Accepts]: Start accepts. Automaton has 3581 states and 4967 transitions. Word has length 250 [2022-11-19 08:01:56,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:01:56,875 INFO L495 AbstractCegarLoop]: Abstraction has 3581 states and 4967 transitions. [2022-11-19 08:01:56,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-11-19 08:01:56,875 INFO L276 IsEmpty]: Start isEmpty. Operand 3581 states and 4967 transitions. [2022-11-19 08:01:56,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-19 08:01:56,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:01:56,880 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:01:56,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:57,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2022-11-19 08:01:57,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:01:57,295 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:01:57,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:01:57,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1451393686, now seen corresponding path program 1 times [2022-11-19 08:01:57,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:01:57,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341364868] [2022-11-19 08:01:57,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:01:57,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:01:57,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:01:57,301 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:01:57,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-11-19 08:02:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:00,789 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:02:00,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:02,384 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:02:02,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:02:05,311 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:02:05,311 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:05,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341364868] [2022-11-19 08:02:05,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341364868] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:02:05,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [409515352] [2022-11-19 08:02:05,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:05,312 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:05,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:02:05,313 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:02:05,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2022-11-19 08:02:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:08,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:02:08,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-11-19 08:02:08,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:08,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [409515352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:08,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:02:08,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [15, 13] total 26 [2022-11-19 08:02:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145793523] [2022-11-19 08:02:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:08,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:08,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:08,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:08,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:08,442 INFO L87 Difference]: Start difference. First operand 3581 states and 4967 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:02:08,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:08,784 INFO L93 Difference]: Finished difference Result 7523 states and 10487 transitions. [2022-11-19 08:02:08,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:02:08,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 260 [2022-11-19 08:02:08,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:08,807 INFO L225 Difference]: With dead ends: 7523 [2022-11-19 08:02:08,808 INFO L226 Difference]: Without dead ends: 3961 [2022-11-19 08:02:08,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 753 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:08,825 INFO L413 NwaCegarLoop]: 2724 mSDtfsCounter, 202 mSDsluCounter, 2632 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 5356 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:08,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 5356 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:08,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3961 states. [2022-11-19 08:02:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3961 to 3583. [2022-11-19 08:02:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3583 states, 2324 states have (on average 1.2259036144578312) internal successors, (2849), 2423 states have internal predecessors, (2849), 1053 states have call successors, (1053), 201 states have call predecessors, (1053), 205 states have return successors, (1068), 1021 states have call predecessors, (1068), 1053 states have call successors, (1068) [2022-11-19 08:02:09,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3583 states to 3583 states and 4970 transitions. [2022-11-19 08:02:09,349 INFO L78 Accepts]: Start accepts. Automaton has 3583 states and 4970 transitions. Word has length 260 [2022-11-19 08:02:09,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:09,349 INFO L495 AbstractCegarLoop]: Abstraction has 3583 states and 4970 transitions. [2022-11-19 08:02:09,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:02:09,350 INFO L276 IsEmpty]: Start isEmpty. Operand 3583 states and 4970 transitions. [2022-11-19 08:02:09,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2022-11-19 08:02:09,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:09,359 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:09,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:09,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:09,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:09,775 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:09,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:09,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1422893396, now seen corresponding path program 1 times [2022-11-19 08:02:09,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:09,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911644068] [2022-11-19 08:02:09,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:09,779 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:09,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:09,781 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:09,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Waiting until timeout for monitored process [2022-11-19 08:02:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:13,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:02:13,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:14,759 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:02:14,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:02:17,824 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:02:17,824 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:17,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1911644068] [2022-11-19 08:02:17,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1911644068] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:02:17,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2000078612] [2022-11-19 08:02:17,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:17,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:17,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:02:17,827 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:02:17,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2022-11-19 08:02:20,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:21,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 3009 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-19 08:02:21,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:22,789 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:02:22,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:22,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2000078612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:22,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:02:22,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:02:22,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232399673] [2022-11-19 08:02:22,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:22,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:22,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:22,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:22,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:22,793 INFO L87 Difference]: Start difference. First operand 3583 states and 4970 transitions. Second operand has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:02:23,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:23,440 INFO L93 Difference]: Finished difference Result 10153 states and 14471 transitions. [2022-11-19 08:02:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:02:23,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 260 [2022-11-19 08:02:23,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:23,494 INFO L225 Difference]: With dead ends: 10153 [2022-11-19 08:02:23,494 INFO L226 Difference]: Without dead ends: 6589 [2022-11-19 08:02:23,518 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 777 GetRequests, 753 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:23,518 INFO L413 NwaCegarLoop]: 3246 mSDtfsCounter, 2065 mSDsluCounter, 2647 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 5893 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:23,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 5893 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:23,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6589 states. [2022-11-19 08:02:24,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6589 to 6579. [2022-11-19 08:02:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6579 states, 4256 states have (on average 1.2225093984962405) internal successors, (5203), 4452 states have internal predecessors, (5203), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-19 08:02:24,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6579 states to 6579 states and 9463 transitions. [2022-11-19 08:02:24,493 INFO L78 Accepts]: Start accepts. Automaton has 6579 states and 9463 transitions. Word has length 260 [2022-11-19 08:02:24,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:24,494 INFO L495 AbstractCegarLoop]: Abstraction has 6579 states and 9463 transitions. [2022-11-19 08:02:24,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.0) internal successors, (132), 2 states have internal predecessors, (132), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:02:24,494 INFO L276 IsEmpty]: Start isEmpty. Operand 6579 states and 9463 transitions. [2022-11-19 08:02:24,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2022-11-19 08:02:24,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:24,499 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:24,571 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (23)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:24,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:24,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:24,915 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:24,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:24,916 INFO L85 PathProgramCache]: Analyzing trace with hash 564379152, now seen corresponding path program 1 times [2022-11-19 08:02:24,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:24,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044855527] [2022-11-19 08:02:24,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:24,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:24,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:24,921 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:24,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2022-11-19 08:02:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:28,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:02:28,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:30,289 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:02:30,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:02:33,296 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:02:33,296 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:33,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044855527] [2022-11-19 08:02:33,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044855527] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:02:33,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [845361840] [2022-11-19 08:02:33,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:33,297 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:33,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:02:33,298 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:02:33,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2022-11-19 08:02:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:36,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 3010 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:02:36,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:38,350 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:02:38,350 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:38,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [845361840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:38,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:02:38,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:02:38,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949483313] [2022-11-19 08:02:38,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:38,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:38,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:38,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:38,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:38,353 INFO L87 Difference]: Start difference. First operand 6579 states and 9463 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:02:39,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:39,069 INFO L93 Difference]: Finished difference Result 13139 states and 19055 transitions. [2022-11-19 08:02:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:02:39,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 261 [2022-11-19 08:02:39,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:39,104 INFO L225 Difference]: With dead ends: 13139 [2022-11-19 08:02:39,105 INFO L226 Difference]: Without dead ends: 6579 [2022-11-19 08:02:39,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 780 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:39,143 INFO L413 NwaCegarLoop]: 2630 mSDtfsCounter, 2440 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2440 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:39,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2440 Valid, 2630 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:39,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2022-11-19 08:02:40,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 6579. [2022-11-19 08:02:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6579 states, 4256 states have (on average 1.2215695488721805) internal successors, (5199), 4452 states have internal predecessors, (5199), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-19 08:02:40,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6579 states to 6579 states and 9459 transitions. [2022-11-19 08:02:40,159 INFO L78 Accepts]: Start accepts. Automaton has 6579 states and 9459 transitions. Word has length 261 [2022-11-19 08:02:40,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:40,160 INFO L495 AbstractCegarLoop]: Abstraction has 6579 states and 9459 transitions. [2022-11-19 08:02:40,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:02:40,160 INFO L276 IsEmpty]: Start isEmpty. Operand 6579 states and 9459 transitions. [2022-11-19 08:02:40,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-19 08:02:40,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:40,165 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:40,199 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:40,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:40,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:40,572 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:40,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:40,573 INFO L85 PathProgramCache]: Analyzing trace with hash -165242032, now seen corresponding path program 1 times [2022-11-19 08:02:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:40,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693559864] [2022-11-19 08:02:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:40,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:40,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:40,576 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:40,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2022-11-19 08:02:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:44,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 3011 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:02:44,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:45,634 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:02:45,634 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:02:48,506 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:02:48,506 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:02:48,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693559864] [2022-11-19 08:02:48,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693559864] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:02:48,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [809952032] [2022-11-19 08:02:48,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:48,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:48,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:02:48,507 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:02:48,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2022-11-19 08:02:51,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:51,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 3011 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:02:51,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:53,732 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:02:53,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:53,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [809952032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:53,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:02:53,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:02:53,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169270954] [2022-11-19 08:02:53,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:53,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:53,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:02:53,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:53,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:53,735 INFO L87 Difference]: Start difference. First operand 6579 states and 9459 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:02:54,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:54,519 INFO L93 Difference]: Finished difference Result 13139 states and 19047 transitions. [2022-11-19 08:02:54,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:02:54,521 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 262 [2022-11-19 08:02:54,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:54,563 INFO L225 Difference]: With dead ends: 13139 [2022-11-19 08:02:54,563 INFO L226 Difference]: Without dead ends: 6579 [2022-11-19 08:02:54,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 783 GetRequests, 759 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:02:54,612 INFO L413 NwaCegarLoop]: 2629 mSDtfsCounter, 2438 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 2629 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:54,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 2629 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:02:54,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2022-11-19 08:02:55,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 6579. [2022-11-19 08:02:55,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6579 states, 4256 states have (on average 1.2206296992481203) internal successors, (5195), 4452 states have internal predecessors, (5195), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-19 08:02:55,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6579 states to 6579 states and 9455 transitions. [2022-11-19 08:02:55,494 INFO L78 Accepts]: Start accepts. Automaton has 6579 states and 9455 transitions. Word has length 262 [2022-11-19 08:02:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:55,495 INFO L495 AbstractCegarLoop]: Abstraction has 6579 states and 9455 transitions. [2022-11-19 08:02:55,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:02:55,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6579 states and 9455 transitions. [2022-11-19 08:02:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2022-11-19 08:02:55,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:55,498 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:55,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:55,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:55,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:02:55,915 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:55,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1194145652, now seen corresponding path program 1 times [2022-11-19 08:02:55,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:02:55,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2028937924] [2022-11-19 08:02:55,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:55,919 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:02:55,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:02:55,920 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:02:55,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Waiting until timeout for monitored process [2022-11-19 08:02:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:59,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:02:59,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:03:01,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:03:04,370 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:03:04,370 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:04,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2028937924] [2022-11-19 08:03:04,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2028937924] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:03:04,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [484851249] [2022-11-19 08:03:04,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:04,371 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:03:04,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:03:04,371 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:03:04,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2022-11-19 08:03:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:07,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 3012 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:03:07,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:03:09,493 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:09,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [484851249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:09,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:03:09,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:03:09,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673845423] [2022-11-19 08:03:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:09,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:03:09,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:09,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:03:09,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:03:09,496 INFO L87 Difference]: Start difference. First operand 6579 states and 9455 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:03:10,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:10,365 INFO L93 Difference]: Finished difference Result 13139 states and 19039 transitions. [2022-11-19 08:03:10,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:03:10,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 263 [2022-11-19 08:03:10,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:10,398 INFO L225 Difference]: With dead ends: 13139 [2022-11-19 08:03:10,398 INFO L226 Difference]: Without dead ends: 6579 [2022-11-19 08:03:10,429 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:03:10,430 INFO L413 NwaCegarLoop]: 2628 mSDtfsCounter, 2436 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2436 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:10,431 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2436 Valid, 2628 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:10,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2022-11-19 08:03:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 6579. [2022-11-19 08:03:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6579 states, 4256 states have (on average 1.2196898496240602) internal successors, (5191), 4452 states have internal predecessors, (5191), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-19 08:03:11,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6579 states to 6579 states and 9451 transitions. [2022-11-19 08:03:11,220 INFO L78 Accepts]: Start accepts. Automaton has 6579 states and 9451 transitions. Word has length 263 [2022-11-19 08:03:11,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:11,221 INFO L495 AbstractCegarLoop]: Abstraction has 6579 states and 9451 transitions. [2022-11-19 08:03:11,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:03:11,221 INFO L276 IsEmpty]: Start isEmpty. Operand 6579 states and 9451 transitions. [2022-11-19 08:03:11,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2022-11-19 08:03:11,225 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:11,225 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:11,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2022-11-19 08:03:11,480 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (29)] Ended with exit code 0 [2022-11-19 08:03:11,635 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:11,636 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:11,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:11,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1384097100, now seen corresponding path program 1 times [2022-11-19 08:03:11,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:11,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1699643315] [2022-11-19 08:03:11,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:11,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:11,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:11,640 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:11,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Waiting until timeout for monitored process [2022-11-19 08:03:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:15,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:03:15,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:16,810 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:03:16,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:03:19,686 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:03:19,686 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:19,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1699643315] [2022-11-19 08:03:19,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1699643315] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:03:19,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1479333458] [2022-11-19 08:03:19,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:19,687 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:03:19,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:03:19,691 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:03:19,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2022-11-19 08:03:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:23,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 3013 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 08:03:23,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:03:24,888 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:24,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1479333458] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:24,888 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:03:24,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [15, 13] total 26 [2022-11-19 08:03:24,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020071388] [2022-11-19 08:03:24,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:24,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:03:24,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:24,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:03:24,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:03:24,890 INFO L87 Difference]: Start difference. First operand 6579 states and 9451 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:03:25,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:25,688 INFO L93 Difference]: Finished difference Result 13139 states and 19031 transitions. [2022-11-19 08:03:25,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:03:25,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 264 [2022-11-19 08:03:25,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:25,723 INFO L225 Difference]: With dead ends: 13139 [2022-11-19 08:03:25,724 INFO L226 Difference]: Without dead ends: 6579 [2022-11-19 08:03:25,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 765 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2022-11-19 08:03:25,757 INFO L413 NwaCegarLoop]: 2627 mSDtfsCounter, 2434 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 2627 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:25,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 2627 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:25,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2022-11-19 08:03:26,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 6579. [2022-11-19 08:03:26,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6579 states, 4256 states have (on average 1.21875) internal successors, (5187), 4452 states have internal predecessors, (5187), 1927 states have call successors, (1927), 397 states have call predecessors, (1927), 395 states have return successors, (2333), 1837 states have call predecessors, (2333), 1927 states have call successors, (2333) [2022-11-19 08:03:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6579 states to 6579 states and 9447 transitions. [2022-11-19 08:03:26,677 INFO L78 Accepts]: Start accepts. Automaton has 6579 states and 9447 transitions. Word has length 264 [2022-11-19 08:03:26,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:26,678 INFO L495 AbstractCegarLoop]: Abstraction has 6579 states and 9447 transitions. [2022-11-19 08:03:26,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (35), 1 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2022-11-19 08:03:26,678 INFO L276 IsEmpty]: Start isEmpty. Operand 6579 states and 9447 transitions. [2022-11-19 08:03:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2022-11-19 08:03:26,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:26,683 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:26,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:26,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (31)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:27,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:27,108 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:27,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:27,108 INFO L85 PathProgramCache]: Analyzing trace with hash -151610457, now seen corresponding path program 1 times [2022-11-19 08:03:27,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:03:27,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913090097] [2022-11-19 08:03:27,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:27,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:03:27,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:03:27,112 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:03:27,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Waiting until timeout for monitored process [2022-11-19 08:03:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:30,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 3014 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 08:03:30,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 101 proven. 15 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-19 08:03:32,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:03:35,259 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 19 proven. 19 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2022-11-19 08:03:35,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:03:35,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913090097] [2022-11-19 08:03:35,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913090097] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:03:35,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [460000725] [2022-11-19 08:03:35,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:35,259 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:03:35,260 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:03:35,260 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:03:35,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2022-11-19 08:03:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:38,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 3014 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:03:38,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:39,250 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2022-11-19 08:03:39,250 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:39,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [460000725] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:39,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-19 08:03:39,251 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [15, 13] total 28 [2022-11-19 08:03:39,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426740608] [2022-11-19 08:03:39,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:39,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 08:03:39,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:03:39,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 08:03:39,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2022-11-19 08:03:39,253 INFO L87 Difference]: Start difference. First operand 6579 states and 9447 transitions. Second operand has 5 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:03:40,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:40,186 INFO L93 Difference]: Finished difference Result 13065 states and 18936 transitions. [2022-11-19 08:03:40,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:03:40,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 265 [2022-11-19 08:03:40,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:40,193 INFO L225 Difference]: With dead ends: 13065 [2022-11-19 08:03:40,193 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:03:40,248 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 793 GetRequests, 766 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=82, Invalid=730, Unknown=0, NotChecked=0, Total=812 [2022-11-19 08:03:40,249 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 9 mSDsluCounter, 7795 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 10397 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:40,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 10397 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 08:03:40,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:03:40,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:03:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:03:40,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:03:40,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 265 [2022-11-19 08:03:40,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:40,255 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:03:40,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 3 states have call successors, (35), 3 states have call predecessors, (35), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2022-11-19 08:03:40,256 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:03:40,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:03:40,258 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:03:40,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (33)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:40,501 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:40,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,34 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ab3a32f6-a71c-4ed5-956e-396ba9a3dd62/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:03:40,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.