./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/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_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/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_5d7d38c4-0daa-4f7c-8555-aee6824cb662/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 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 --- 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 06:58:34,694 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:58:34,697 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:58:34,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:58:34,735 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:58:34,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:58:34,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:58:34,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:58:34,741 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:58:34,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:58:34,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:58:34,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:58:34,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:58:34,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:58:34,763 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:58:34,764 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:58:34,764 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:58:34,765 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:58:34,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:58:34,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:58:34,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:58:34,774 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:58:34,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:58:34,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:58:34,791 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:58:34,792 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:58:34,792 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:58:34,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:58:34,794 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:58:34,795 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:58:34,795 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:58:34,796 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:58:34,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:58:34,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:58:34,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:58:34,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:58:34,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:58:34,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:58:34,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:58:34,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:58:34,803 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:58:34,804 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:58:34,844 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:58:34,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:58:34,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:58:34,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:58:34,846 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:58:34,846 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:58:34,846 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:58:34,847 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:58:34,847 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:58:34,847 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:58:34,848 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:58:34,848 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:58:34,848 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:58:34,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:58:34,849 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:58:34,849 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:58:34,849 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:58:34,849 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:58:34,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:58:34,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:58:34,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:58:34,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:58:34,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:58:34,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:58:34,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:58:34,851 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:58:34,852 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:58:34,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:58:34,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:58:34,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:34,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:58:34,853 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:58:34,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:58:34,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:58:34,853 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:58:34,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:58:34,854 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:58:34,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:58:34,854 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_5d7d38c4-0daa-4f7c-8555-aee6824cb662/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a394c873c772dcf5e6708cb37d9b35e24256f5a212c542b9c08f202c87eae6 [2022-11-19 06:58:35,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:58:35,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:58:35,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:58:35,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:58:35,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:58:35,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-19 06:58:35,302 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/data/9818993a3/7dfcc8b4f59e4d8e9407bc08060755fd/FLAG8416d13cd [2022-11-19 06:58:36,261 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:58:36,261 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-19 06:58:36,302 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/data/9818993a3/7dfcc8b4f59e4d8e9407bc08060755fd/FLAG8416d13cd [2022-11-19 06:58:36,663 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/data/9818993a3/7dfcc8b4f59e4d8e9407bc08060755fd [2022-11-19 06:58:36,666 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:58:36,667 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:58:36,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:36,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:58:36,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:58:36,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:36" (1/1) ... [2022-11-19 06:58:36,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d2d566d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:36, skipping insertion in model container [2022-11-19 06:58:36,676 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:36" (1/1) ... [2022-11-19 06:58:36,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:58:36,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:58:38,702 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_5d7d38c4-0daa-4f7c-8555-aee6824cb662/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-19 06:58:38,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:38,814 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:58:39,162 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_5d7d38c4-0daa-4f7c-8555-aee6824cb662/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i[263471,263484] [2022-11-19 06:58:39,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:58:39,345 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:58:39,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39 WrapperNode [2022-11-19 06:58:39,346 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:58:39,347 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:39,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:58:39,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:58:39,355 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,601 INFO L138 Inliner]: procedures = 225, calls = 1464, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 3724 [2022-11-19 06:58:39,601 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:58:39,602 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:58:39,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:58:39,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:58:39,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,920 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,960 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:58:39,961 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:58:39,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:58:39,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:58:39,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (1/1) ... [2022-11-19 06:58:39,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:58:39,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:58:39,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:58:40,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:58:40,043 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2022-11-19 06:58:40,044 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2022-11-19 06:58:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 06:58:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 06:58:40,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:58:40,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:58:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:58:40,045 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:58:40,045 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-19 06:58:40,045 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-19 06:58:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 06:58:40,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 06:58:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:58:40,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:58:40,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 06:58:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 06:58:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-19 06:58:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-19 06:58:40,047 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-19 06:58:40,047 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-19 06:58:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:58:40,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:58:40,048 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:58:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:58:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2022-11-19 06:58:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2022-11-19 06:58:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2022-11-19 06:58:40,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2022-11-19 06:58:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2022-11-19 06:58:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2022-11-19 06:58:40,050 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-19 06:58:40,050 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-19 06:58:40,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:58:40,051 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 06:58:40,051 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2022-11-19 06:58:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2022-11-19 06:58:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-11-19 06:58:40,052 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-11-19 06:58:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:58:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_get_stats [2022-11-19 06:58:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_get_stats [2022-11-19 06:58:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-19 06:58:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-19 06:58:40,053 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-19 06:58:40,053 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-19 06:58:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 06:58:40,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 06:58:40,054 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 06:58:40,055 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 06:58:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-19 06:58:40,056 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-19 06:58:40,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:58:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-11-19 06:58:40,057 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-11-19 06:58:40,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:58:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-19 06:58:40,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-19 06:58:40,058 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2022-11-19 06:58:40,058 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2022-11-19 06:58:40,059 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2022-11-19 06:58:40,059 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2022-11-19 06:58:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-19 06:58:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-19 06:58:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2022-11-19 06:58:40,060 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2022-11-19 06:58:40,060 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-19 06:58:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-19 06:58:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 06:58:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 06:58:40,061 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2022-11-19 06:58:40,061 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2022-11-19 06:58:40,062 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2022-11-19 06:58:40,062 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2022-11-19 06:58:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2022-11-19 06:58:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2022-11-19 06:58:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 06:58:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 06:58:40,063 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 06:58:40,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 06:58:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2022-11-19 06:58:40,064 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2022-11-19 06:58:40,064 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-19 06:58:40,065 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-19 06:58:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:58:40,065 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-19 06:58:40,066 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-19 06:58:40,066 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-19 06:58:40,066 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-19 06:58:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 06:58:40,067 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 06:58:40,067 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2022-11-19 06:58:40,067 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2022-11-19 06:58:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2022-11-19 06:58:40,068 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2022-11-19 06:58:40,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 06:58:40,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 06:58:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2022-11-19 06:58:40,069 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2022-11-19 06:58:40,069 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-11-19 06:58:40,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-11-19 06:58:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-19 06:58:40,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-19 06:58:40,070 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2022-11-19 06:58:40,071 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2022-11-19 06:58:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:58:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 06:58:40,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 06:58:40,071 INFO L130 BoogieDeclarations]: Found specification of procedure dev_consume_skb_any [2022-11-19 06:58:40,072 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_consume_skb_any [2022-11-19 06:58:40,072 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-19 06:58:40,073 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-19 06:58:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:58:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:58:40,076 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2022-11-19 06:58:40,076 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2022-11-19 06:58:40,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 06:58:40,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 06:58:40,079 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2022-11-19 06:58:40,080 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2022-11-19 06:58:40,080 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2022-11-19 06:58:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2022-11-19 06:58:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2022-11-19 06:58:40,085 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2022-11-19 06:58:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:58:40,085 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2022-11-19 06:58:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2022-11-19 06:58:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 06:58:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 06:58:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:58:40,086 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-19 06:58:40,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-19 06:58:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:58:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 06:58:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-11-19 06:58:40,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-11-19 06:58:40,087 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2022-11-19 06:58:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2022-11-19 06:58:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2022-11-19 06:58:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2022-11-19 06:58:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2022-11-19 06:58:40,088 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2022-11-19 06:58:40,088 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-19 06:58:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-19 06:58:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2022-11-19 06:58:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2022-11-19 06:58:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2022-11-19 06:58:40,089 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2022-11-19 06:58:40,089 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2022-11-19 06:58:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2022-11-19 06:58:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:58:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2022-11-19 06:58:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2022-11-19 06:58:40,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:58:40,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:58:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2022-11-19 06:58:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2022-11-19 06:58:40,091 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2022-11-19 06:58:40,091 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2022-11-19 06:58:40,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:58:40,881 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:58:41,537 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:58:44,403 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 06:58:44,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##8: assume 0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616; [2022-11-19 06:58:44,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !(0 == (if 0 == ~tmp___4~7#1 then 0 else (if 2096896 == ~tmp___4~7#1 then ~tmp___4~7#1 else ~bitwiseAnd(~tmp___4~7#1, 2096896))) % 18446744073709551616); [2022-11-19 06:58:44,669 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189-1: assume -9223372036854775808 <= #t~ret656#1 && #t~ret656#1 <= 9223372036854775807;havoc #t~ret656#1; [2022-11-19 06:58:44,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8189: SUMMARY for call #t~ret656#1 := schedule_timeout_interruptible(1); srcloc: null [2022-11-19 06:58:44,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2022-11-19 06:58:44,670 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8192: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2022-11-19 06:58:44,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:58:46,126 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:58:46,126 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-11-19 06:58:46,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:46 BoogieIcfgContainer [2022-11-19 06:58:46,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:58:46,134 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:58:46,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:58:46,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:58:46,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:58:36" (1/3) ... [2022-11-19 06:58:46,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f730c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:46, skipping insertion in model container [2022-11-19 06:58:46,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:39" (2/3) ... [2022-11-19 06:58:46,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40f730c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:46, skipping insertion in model container [2022-11-19 06:58:46,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:46" (3/3) ... [2022-11-19 06:58:46,141 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--hp--hp100.ko-entry_point.cil.out.i [2022-11-19 06:58:46,159 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:58:46,160 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:58:46,275 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:58:46,282 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;@3968e0be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:58:46,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:58:46,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 762 states have (on average 1.3648293963254594) internal successors, (1040), 816 states have internal predecessors, (1040), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) [2022-11-19 06:58:46,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-11-19 06:58:46,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:46,339 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:46,339 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:46,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash 115539995, now seen corresponding path program 1 times [2022-11-19 06:58:46,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:46,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212182283] [2022-11-19 06:58:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:46,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:47,642 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-19 06:58:47,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:47,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212182283] [2022-11-19 06:58:47,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212182283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:47,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:47,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:47,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853449139] [2022-11-19 06:58:47,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:47,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:47,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:47,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:47,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:47,704 INFO L87 Difference]: Start difference. First operand has 1366 states, 762 states have (on average 1.3648293963254594) internal successors, (1040), 816 states have internal predecessors, (1040), 535 states have call successors, (535), 70 states have call predecessors, (535), 69 states have return successors, (528), 512 states have call predecessors, (528), 528 states have call successors, (528) Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:58:51,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:51,268 INFO L93 Difference]: Finished difference Result 4042 states and 6298 transitions. [2022-11-19 06:58:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:58:51,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 130 [2022-11-19 06:58:51,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:51,324 INFO L225 Difference]: With dead ends: 4042 [2022-11-19 06:58:51,324 INFO L226 Difference]: Without dead ends: 2671 [2022-11-19 06:58:51,349 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:58:51,353 INFO L413 NwaCegarLoop]: 2871 mSDtfsCounter, 2056 mSDsluCounter, 7654 mSDsCounter, 0 mSdLazyCounter, 659 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2060 SdHoareTripleChecker+Valid, 10525 SdHoareTripleChecker+Invalid, 662 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 659 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:51,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2060 Valid, 10525 Invalid, 662 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 659 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 06:58:51,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2671 states. [2022-11-19 06:58:51,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2671 to 2657. [2022-11-19 06:58:51,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2657 states, 1484 states have (on average 1.355121293800539) internal successors, (2011), 1578 states have internal predecessors, (2011), 1037 states have call successors, (1037), 137 states have call predecessors, (1037), 135 states have return successors, (1036), 997 states have call predecessors, (1036), 1036 states have call successors, (1036) [2022-11-19 06:58:51,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 4084 transitions. [2022-11-19 06:58:51,806 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 4084 transitions. Word has length 130 [2022-11-19 06:58:51,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:51,807 INFO L495 AbstractCegarLoop]: Abstraction has 2657 states and 4084 transitions. [2022-11-19 06:58:51,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:58:51,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 4084 transitions. [2022-11-19 06:58:51,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-19 06:58:51,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:51,827 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:51,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:58:51,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:51,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:51,830 INFO L85 PathProgramCache]: Analyzing trace with hash 459872670, now seen corresponding path program 1 times [2022-11-19 06:58:51,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:51,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842272539] [2022-11-19 06:58:51,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:51,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:51,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:52,393 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-19 06:58:52,393 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:52,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842272539] [2022-11-19 06:58:52,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842272539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:52,395 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:52,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:52,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505773731] [2022-11-19 06:58:52,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:52,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:52,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:52,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:52,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:52,403 INFO L87 Difference]: Start difference. First operand 2657 states and 4084 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:58:55,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:55,237 INFO L93 Difference]: Finished difference Result 5560 states and 8485 transitions. [2022-11-19 06:58:55,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:58:55,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 132 [2022-11-19 06:58:55,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:55,269 INFO L225 Difference]: With dead ends: 5560 [2022-11-19 06:58:55,269 INFO L226 Difference]: Without dead ends: 3989 [2022-11-19 06:58:55,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:58:55,283 INFO L413 NwaCegarLoop]: 2709 mSDtfsCounter, 2029 mSDsluCounter, 7308 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2033 SdHoareTripleChecker+Valid, 10017 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:55,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2033 Valid, 10017 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 06:58:55,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3989 states. [2022-11-19 06:58:55,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3989 to 3970. [2022-11-19 06:58:55,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 2220 states have (on average 1.3558558558558558) internal successors, (3010), 2359 states have internal predecessors, (3010), 1547 states have call successors, (1547), 205 states have call predecessors, (1547), 202 states have return successors, (1546), 1489 states have call predecessors, (1546), 1546 states have call successors, (1546) [2022-11-19 06:58:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 6103 transitions. [2022-11-19 06:58:55,714 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 6103 transitions. Word has length 132 [2022-11-19 06:58:55,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:55,715 INFO L495 AbstractCegarLoop]: Abstraction has 3970 states and 6103 transitions. [2022-11-19 06:58:55,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:58:55,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 6103 transitions. [2022-11-19 06:58:55,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-19 06:58:55,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:55,724 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:55,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:58:55,724 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:55,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2054516214, now seen corresponding path program 1 times [2022-11-19 06:58:55,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:55,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124151821] [2022-11-19 06:58:55,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:55,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:55,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-19 06:58:56,255 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:56,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124151821] [2022-11-19 06:58:56,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124151821] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:56,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:56,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:58:56,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140781737] [2022-11-19 06:58:56,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:56,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:58:56,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:56,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:58:56,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:56,259 INFO L87 Difference]: Start difference. First operand 3970 states and 6103 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:58:59,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:59,619 INFO L93 Difference]: Finished difference Result 6878 states and 10506 transitions. [2022-11-19 06:58:59,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:58:59,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 133 [2022-11-19 06:58:59,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:59,649 INFO L225 Difference]: With dead ends: 6878 [2022-11-19 06:58:59,649 INFO L226 Difference]: Without dead ends: 3993 [2022-11-19 06:58:59,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:58:59,668 INFO L413 NwaCegarLoop]: 2686 mSDtfsCounter, 2027 mSDsluCounter, 7262 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2031 SdHoareTripleChecker+Valid, 9948 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:59,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2031 Valid, 9948 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 06:58:59,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3993 states. [2022-11-19 06:59:00,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3993 to 3974. [2022-11-19 06:59:00,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3974 states, 2224 states have (on average 1.3552158273381294) internal successors, (3014), 2362 states have internal predecessors, (3014), 1546 states have call successors, (1546), 206 states have call predecessors, (1546), 203 states have return successors, (1545), 1489 states have call predecessors, (1545), 1545 states have call successors, (1545) [2022-11-19 06:59:00,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3974 states to 3974 states and 6105 transitions. [2022-11-19 06:59:00,043 INFO L78 Accepts]: Start accepts. Automaton has 3974 states and 6105 transitions. Word has length 133 [2022-11-19 06:59:00,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:00,046 INFO L495 AbstractCegarLoop]: Abstraction has 3974 states and 6105 transitions. [2022-11-19 06:59:00,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:59:00,046 INFO L276 IsEmpty]: Start isEmpty. Operand 3974 states and 6105 transitions. [2022-11-19 06:59:00,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-11-19 06:59:00,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:00,054 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:00,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:59:00,054 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:00,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:00,056 INFO L85 PathProgramCache]: Analyzing trace with hash -2120965613, now seen corresponding path program 1 times [2022-11-19 06:59:00,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:00,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622757603] [2022-11-19 06:59:00,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:00,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-11-19 06:59:00,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:00,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622757603] [2022-11-19 06:59:00,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622757603] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:00,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:00,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 06:59:00,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895087980] [2022-11-19 06:59:00,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:00,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 06:59:00,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:00,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 06:59:00,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:59:00,601 INFO L87 Difference]: Start difference. First operand 3974 states and 6105 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:59:04,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:04,772 INFO L93 Difference]: Finished difference Result 6749 states and 10307 transitions. [2022-11-19 06:59:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-19 06:59:04,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 131 [2022-11-19 06:59:04,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:04,809 INFO L225 Difference]: With dead ends: 6749 [2022-11-19 06:59:04,810 INFO L226 Difference]: Without dead ends: 3859 [2022-11-19 06:59:04,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-19 06:59:04,833 INFO L413 NwaCegarLoop]: 2637 mSDtfsCounter, 2028 mSDsluCounter, 7164 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2032 SdHoareTripleChecker+Valid, 9801 SdHoareTripleChecker+Invalid, 636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:04,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2032 Valid, 9801 Invalid, 636 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-19 06:59:04,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3859 states. [2022-11-19 06:59:05,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3859 to 3843. [2022-11-19 06:59:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3843 states, 2145 states have (on average 1.3552447552447553) internal successors, (2907), 2276 states have internal predecessors, (2907), 1500 states have call successors, (1500), 200 states have call predecessors, (1500), 197 states have return successors, (1499), 1444 states have call predecessors, (1499), 1499 states have call successors, (1499) [2022-11-19 06:59:05,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3843 states to 3843 states and 5906 transitions. [2022-11-19 06:59:05,233 INFO L78 Accepts]: Start accepts. Automaton has 3843 states and 5906 transitions. Word has length 131 [2022-11-19 06:59:05,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:05,234 INFO L495 AbstractCegarLoop]: Abstraction has 3843 states and 5906 transitions. [2022-11-19 06:59:05,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-19 06:59:05,235 INFO L276 IsEmpty]: Start isEmpty. Operand 3843 states and 5906 transitions. [2022-11-19 06:59:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-11-19 06:59:05,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:05,247 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:05,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:59:05,247 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:05,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:05,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1540903318, now seen corresponding path program 1 times [2022-11-19 06:59:05,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:05,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649088390] [2022-11-19 06:59:05,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:05,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-19 06:59:05,973 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:05,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649088390] [2022-11-19 06:59:05,973 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649088390] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 06:59:05,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [471933612] [2022-11-19 06:59:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:05,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:05,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:05,985 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:05,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 06:59:06,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:06,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 2197 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 06:59:06,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:06,913 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-19 06:59:06,913 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:06,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [471933612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:06,913 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 06:59:06,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-11-19 06:59:06,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070082088] [2022-11-19 06:59:06,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:06,915 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:59:06,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:06,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:59:06,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:59:06,916 INFO L87 Difference]: Start difference. First operand 3843 states and 5906 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-19 06:59:08,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:08,686 INFO L93 Difference]: Finished difference Result 6513 states and 10009 transitions. [2022-11-19 06:59:08,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:59:08,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 143 [2022-11-19 06:59:08,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:08,715 INFO L225 Difference]: With dead ends: 6513 [2022-11-19 06:59:08,715 INFO L226 Difference]: Without dead ends: 3861 [2022-11-19 06:59:08,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-19 06:59:08,732 INFO L413 NwaCegarLoop]: 1927 mSDtfsCounter, 7 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3845 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:08,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3845 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-19 06:59:08,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3861 states. [2022-11-19 06:59:09,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3861 to 3845. [2022-11-19 06:59:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3845 states, 2147 states have (on average 1.3549138332557056) internal successors, (2909), 2278 states have internal predecessors, (2909), 1500 states have call successors, (1500), 200 states have call predecessors, (1500), 197 states have return successors, (1499), 1444 states have call predecessors, (1499), 1499 states have call successors, (1499) [2022-11-19 06:59:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3845 states to 3845 states and 5908 transitions. [2022-11-19 06:59:09,043 INFO L78 Accepts]: Start accepts. Automaton has 3845 states and 5908 transitions. Word has length 143 [2022-11-19 06:59:09,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:09,047 INFO L495 AbstractCegarLoop]: Abstraction has 3845 states and 5908 transitions. [2022-11-19 06:59:09,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2022-11-19 06:59:09,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3845 states and 5908 transitions. [2022-11-19 06:59:09,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2022-11-19 06:59:09,058 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:09,058 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:09,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 06:59:09,268 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:09,268 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:09,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:09,268 INFO L85 PathProgramCache]: Analyzing trace with hash -360851960, now seen corresponding path program 1 times [2022-11-19 06:59:09,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:09,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109398036] [2022-11-19 06:59:09,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:09,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:09,365 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:59:09,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394910963] [2022-11-19 06:59:09,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:09,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:09,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:09,367 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:09,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 06:59:10,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:10,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 2230 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:59:10,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:10,399 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-19 06:59:10,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:10,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:10,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109398036] [2022-11-19 06:59:10,400 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:59:10,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394910963] [2022-11-19 06:59:10,400 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394910963] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:10,401 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:10,401 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 06:59:10,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164180408] [2022-11-19 06:59:10,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:10,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 06:59:10,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:10,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 06:59:10,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:59:10,403 INFO L87 Difference]: Start difference. First operand 3845 states and 5908 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:15,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:15,392 INFO L93 Difference]: Finished difference Result 9031 states and 13869 transitions. [2022-11-19 06:59:15,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:59:15,393 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 147 [2022-11-19 06:59:15,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:15,445 INFO L225 Difference]: With dead ends: 9031 [2022-11-19 06:59:15,445 INFO L226 Difference]: Without dead ends: 6377 [2022-11-19 06:59:15,466 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:59:15,467 INFO L413 NwaCegarLoop]: 2914 mSDtfsCounter, 2062 mSDsluCounter, 13552 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 16466 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:15,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 16466 Invalid, 1123 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 06:59:15,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6377 states. [2022-11-19 06:59:16,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6377 to 6344. [2022-11-19 06:59:16,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6344 states, 3543 states have (on average 1.3567598080722552) internal successors, (4807), 3765 states have internal predecessors, (4807), 2474 states have call successors, (2474), 329 states have call predecessors, (2474), 326 states have return successors, (2478), 2377 states have call predecessors, (2478), 2473 states have call successors, (2478) [2022-11-19 06:59:16,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6344 states to 6344 states and 9759 transitions. [2022-11-19 06:59:16,153 INFO L78 Accepts]: Start accepts. Automaton has 6344 states and 9759 transitions. Word has length 147 [2022-11-19 06:59:16,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:16,153 INFO L495 AbstractCegarLoop]: Abstraction has 6344 states and 9759 transitions. [2022-11-19 06:59:16,153 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 5 states have internal predecessors, (60), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:16,155 INFO L276 IsEmpty]: Start isEmpty. Operand 6344 states and 9759 transitions. [2022-11-19 06:59:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-11-19 06:59:16,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:16,172 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:16,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 06:59:16,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-19 06:59:16,396 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:16,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:16,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1432080469, now seen corresponding path program 1 times [2022-11-19 06:59:16,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:16,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668031722] [2022-11-19 06:59:16,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:16,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:16,489 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:59:16,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1239436689] [2022-11-19 06:59:16,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:16,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:16,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:16,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:16,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 06:59:17,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:17,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 2232 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:59:17,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:17,451 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-19 06:59:17,451 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:17,452 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:17,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668031722] [2022-11-19 06:59:17,452 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:59:17,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239436689] [2022-11-19 06:59:17,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239436689] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:17,452 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:17,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 06:59:17,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143846855] [2022-11-19 06:59:17,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:17,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 06:59:17,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:17,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 06:59:17,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:59:17,455 INFO L87 Difference]: Start difference. First operand 6344 states and 9759 transitions. Second operand has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:22,693 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:59:24,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:24,186 INFO L93 Difference]: Finished difference Result 14040 states and 21581 transitions. [2022-11-19 06:59:24,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:59:24,187 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 148 [2022-11-19 06:59:24,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:24,236 INFO L225 Difference]: With dead ends: 14040 [2022-11-19 06:59:24,236 INFO L226 Difference]: Without dead ends: 8887 [2022-11-19 06:59:24,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:59:24,268 INFO L413 NwaCegarLoop]: 3071 mSDtfsCounter, 2062 mSDsluCounter, 14168 mSDsCounter, 0 mSdLazyCounter, 1148 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 17239 SdHoareTripleChecker+Invalid, 1150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:24,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 17239 Invalid, 1150 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1148 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 06:59:24,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8887 states. [2022-11-19 06:59:25,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8887 to 8848. [2022-11-19 06:59:25,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8848 states, 4942 states have (on average 1.3573452043707002) internal successors, (6708), 5258 states have internal predecessors, (6708), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3309 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-11-19 06:59:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8848 states to 8848 states and 13616 transitions. [2022-11-19 06:59:25,103 INFO L78 Accepts]: Start accepts. Automaton has 8848 states and 13616 transitions. Word has length 148 [2022-11-19 06:59:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:25,104 INFO L495 AbstractCegarLoop]: Abstraction has 8848 states and 13616 transitions. [2022-11-19 06:59:25,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.714285714285714) internal successors, (61), 5 states have internal predecessors, (61), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 8848 states and 13616 transitions. [2022-11-19 06:59:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2022-11-19 06:59:25,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:25,123 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:25,137 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 06:59:25,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-19 06:59:25,338 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:25,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:25,343 INFO L85 PathProgramCache]: Analyzing trace with hash -901747345, now seen corresponding path program 1 times [2022-11-19 06:59:25,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:25,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399111739] [2022-11-19 06:59:25,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:25,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:25,415 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:59:25,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [300878048] [2022-11-19 06:59:25,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:25,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:25,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:25,417 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:25,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 06:59:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:26,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 2234 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:59:26,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:26,340 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-19 06:59:26,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:26,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:26,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399111739] [2022-11-19 06:59:26,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:59:26,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300878048] [2022-11-19 06:59:26,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300878048] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:26,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:26,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 06:59:26,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181450869] [2022-11-19 06:59:26,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:26,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 06:59:26,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:26,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 06:59:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:59:26,343 INFO L87 Difference]: Start difference. First operand 8848 states and 13616 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:31,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:31,464 INFO L93 Difference]: Finished difference Result 19046 states and 29291 transitions. [2022-11-19 06:59:31,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:59:31,465 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 149 [2022-11-19 06:59:31,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:31,535 INFO L225 Difference]: With dead ends: 19046 [2022-11-19 06:59:31,535 INFO L226 Difference]: Without dead ends: 11389 [2022-11-19 06:59:31,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:59:31,574 INFO L413 NwaCegarLoop]: 3123 mSDtfsCounter, 2062 mSDsluCounter, 14376 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 17499 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:31,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2066 Valid, 17499 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1168 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-11-19 06:59:31,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11389 states. [2022-11-19 06:59:32,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11389 to 8849. [2022-11-19 06:59:32,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8849 states, 4943 states have (on average 1.357272911187538) internal successors, (6709), 5258 states have internal predecessors, (6709), 3448 states have call successors, (3448), 458 states have call predecessors, (3448), 457 states have return successors, (3460), 3310 states have call predecessors, (3460), 3447 states have call successors, (3460) [2022-11-19 06:59:32,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8849 states to 8849 states and 13617 transitions. [2022-11-19 06:59:32,438 INFO L78 Accepts]: Start accepts. Automaton has 8849 states and 13617 transitions. Word has length 149 [2022-11-19 06:59:32,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:32,440 INFO L495 AbstractCegarLoop]: Abstraction has 8849 states and 13617 transitions. [2022-11-19 06:59:32,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:32,441 INFO L276 IsEmpty]: Start isEmpty. Operand 8849 states and 13617 transitions. [2022-11-19 06:59:32,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-19 06:59:32,459 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:32,459 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:32,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 06:59:32,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:32,669 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:32,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:32,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1978843484, now seen corresponding path program 1 times [2022-11-19 06:59:32,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:32,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966512307] [2022-11-19 06:59:32,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:32,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:32,742 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:59:32,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1513578242] [2022-11-19 06:59:32,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:32,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:32,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:32,743 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:32,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-19 06:59:33,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:33,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 2236 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 06:59:33,644 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:33,714 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2022-11-19 06:59:33,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:33,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:33,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966512307] [2022-11-19 06:59:33,715 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:59:33,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513578242] [2022-11-19 06:59:33,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513578242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:33,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:33,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 06:59:33,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959496432] [2022-11-19 06:59:33,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:33,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 06:59:33,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:33,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 06:59:33,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-19 06:59:33,718 INFO L87 Difference]: Start difference. First operand 8849 states and 13617 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:38,543 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 06:59:38,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:38,904 INFO L93 Difference]: Finished difference Result 19320 states and 29709 transitions. [2022-11-19 06:59:38,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-19 06:59:38,905 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 150 [2022-11-19 06:59:38,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:38,965 INFO L225 Difference]: With dead ends: 19320 [2022-11-19 06:59:38,965 INFO L226 Difference]: Without dead ends: 11662 [2022-11-19 06:59:38,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2022-11-19 06:59:38,999 INFO L413 NwaCegarLoop]: 3059 mSDtfsCounter, 2060 mSDsluCounter, 14120 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 17179 SdHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:38,999 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 17179 Invalid, 1140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1137 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2022-11-19 06:59:39,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11662 states. [2022-11-19 06:59:39,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11662 to 11592. [2022-11-19 06:59:39,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11592 states, 6463 states have (on average 1.357573882098097) internal successors, (8774), 6875 states have internal predecessors, (8774), 4530 states have call successors, (4530), 600 states have call predecessors, (4530), 598 states have return successors, (4547), 4348 states have call predecessors, (4547), 4529 states have call successors, (4547) [2022-11-19 06:59:40,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11592 states to 11592 states and 17851 transitions. [2022-11-19 06:59:40,065 INFO L78 Accepts]: Start accepts. Automaton has 11592 states and 17851 transitions. Word has length 150 [2022-11-19 06:59:40,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:40,066 INFO L495 AbstractCegarLoop]: Abstraction has 11592 states and 17851 transitions. [2022-11-19 06:59:40,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 5 states have internal predecessors, (63), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-19 06:59:40,066 INFO L276 IsEmpty]: Start isEmpty. Operand 11592 states and 17851 transitions. [2022-11-19 06:59:40,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-19 06:59:40,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:40,101 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:40,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-19 06:59:40,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:40,311 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:40,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:40,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1779344255, now seen corresponding path program 1 times [2022-11-19 06:59:40,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:40,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647321651] [2022-11-19 06:59:40,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:40,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:40,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:40,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647321651] [2022-11-19 06:59:40,472 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 06:59:40,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964592775] [2022-11-19 06:59:40,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:40,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:40,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:40,474 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:40,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-19 06:59:41,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:41,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 2453 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 06:59:41,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:41,448 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-19 06:59:41,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:41,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964592775] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:41,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:41,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:59:41,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425797964] [2022-11-19 06:59:41,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:41,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:59:41,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:41,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:59:41,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:59:41,452 INFO L87 Difference]: Start difference. First operand 11592 states and 17851 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:59:44,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:44,097 INFO L93 Difference]: Finished difference Result 33783 states and 51979 transitions. [2022-11-19 06:59:44,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:59:44,098 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2022-11-19 06:59:44,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:44,228 INFO L225 Difference]: With dead ends: 33783 [2022-11-19 06:59:44,228 INFO L226 Difference]: Without dead ends: 22210 [2022-11-19 06:59:44,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 152 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 06:59:44,283 INFO L413 NwaCegarLoop]: 2375 mSDtfsCounter, 1887 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 4202 SdHoareTripleChecker+Invalid, 373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:44,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 4202 Invalid, 373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 06:59:44,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22210 states. [2022-11-19 06:59:45,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22210 to 22180. [2022-11-19 06:59:45,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22180 states, 12365 states have (on average 1.3505054589567327) internal successors, (16699), 13181 states have internal predecessors, (16699), 8619 states have call successors, (8619), 1198 states have call predecessors, (8619), 1195 states have return successors, (8654), 8255 states have call predecessors, (8654), 8618 states have call successors, (8654) [2022-11-19 06:59:45,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22180 states to 22180 states and 33972 transitions. [2022-11-19 06:59:45,893 INFO L78 Accepts]: Start accepts. Automaton has 22180 states and 33972 transitions. Word has length 154 [2022-11-19 06:59:45,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:45,894 INFO L495 AbstractCegarLoop]: Abstraction has 22180 states and 33972 transitions. [2022-11-19 06:59:45,894 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:59:45,894 INFO L276 IsEmpty]: Start isEmpty. Operand 22180 states and 33972 transitions. [2022-11-19 06:59:45,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-11-19 06:59:45,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:45,922 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:45,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-19 06:59:46,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:46,133 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:46,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:46,134 INFO L85 PathProgramCache]: Analyzing trace with hash -439335598, now seen corresponding path program 1 times [2022-11-19 06:59:46,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:46,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116950491] [2022-11-19 06:59:46,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:46,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:46,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:46,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:46,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116950491] [2022-11-19 06:59:46,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-19 06:59:46,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440789649] [2022-11-19 06:59:46,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:46,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:46,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:46,275 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:46,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 06:59:47,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:47,485 INFO L263 TraceCheckSpWp]: Trace formula consists of 2465 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 06:59:47,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:47,521 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-11-19 06:59:47,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 06:59:47,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440789649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:47,522 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:47,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:59:47,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512181173] [2022-11-19 06:59:47,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:47,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:59:47,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:47,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:59:47,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:59:47,528 INFO L87 Difference]: Start difference. First operand 22180 states and 33972 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:59:48,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:48,960 INFO L93 Difference]: Finished difference Result 40565 states and 62100 transitions. [2022-11-19 06:59:48,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:59:48,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 160 [2022-11-19 06:59:48,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:49,054 INFO L225 Difference]: With dead ends: 40565 [2022-11-19 06:59:49,054 INFO L226 Difference]: Without dead ends: 18404 [2022-11-19 06:59:49,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 158 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 06:59:49,144 INFO L413 NwaCegarLoop]: 1726 mSDtfsCounter, 1862 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1862 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:49,144 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1862 Valid, 1726 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 06:59:49,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18404 states. [2022-11-19 06:59:50,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18404 to 18404. [2022-11-19 06:59:50,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18404 states, 10483 states have (on average 1.3355909567871793) internal successors, (14001), 11162 states have internal predecessors, (14001), 6906 states have call successors, (6906), 1009 states have call predecessors, (6906), 1014 states have return successors, (6941), 6638 states have call predecessors, (6941), 6905 states have call successors, (6941) [2022-11-19 06:59:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18404 states to 18404 states and 27848 transitions. [2022-11-19 06:59:50,625 INFO L78 Accepts]: Start accepts. Automaton has 18404 states and 27848 transitions. Word has length 160 [2022-11-19 06:59:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:50,625 INFO L495 AbstractCegarLoop]: Abstraction has 18404 states and 27848 transitions. [2022-11-19 06:59:50,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-11-19 06:59:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 18404 states and 27848 transitions. [2022-11-19 06:59:50,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-11-19 06:59:50,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:50,630 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:50,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-11-19 06:59:50,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-19 06:59:50,840 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:50,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:50,841 INFO L85 PathProgramCache]: Analyzing trace with hash 353839356, now seen corresponding path program 1 times [2022-11-19 06:59:50,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:50,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77670894] [2022-11-19 06:59:50,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:50,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:50,912 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 06:59:50,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930226097] [2022-11-19 06:59:50,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:50,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 06:59:50,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:59:50,914 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 06:59:50,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d7d38c4-0daa-4f7c-8555-aee6824cb662/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-19 06:59:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:51,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 2303 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 06:59:51,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 06:59:51,984 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-11-19 06:59:51,984 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 06:59:52,312 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2022-11-19 06:59:52,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:52,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77670894] [2022-11-19 06:59:52,312 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 06:59:52,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930226097] [2022-11-19 06:59:52,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930226097] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 06:59:52,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [934941795] [2022-11-19 06:59:52,338 INFO L159 IcfgInterpreter]: Started Sifa with 90 locations of interest [2022-11-19 06:59:52,338 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 06:59:52,342 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 06:59:52,349 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 06:59:52,349 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 06:59:55,292 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-19 06:59:55,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-19 06:59:55,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-19 06:59:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:55,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 06:59:55,975 INFO L217 Elim1Store]: Index analysis took 174 ms [2022-11-19 07:00:04,386 WARN L233 SmtUtils]: Spent 8.39s on a formula simplification. DAG size of input: 959 DAG size of output: 479 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:00:04,389 INFO L321 Elim1Store]: treesize reduction 2264, result has 25.5 percent of original size [2022-11-19 07:00:04,390 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 63 select indices, 63 select index equivalence classes, 1834 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 180 case distinctions, treesize of input 329 treesize of output 981 [2022-11-19 07:00:05,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-19 07:00:05,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-19 07:00:05,906 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-19 07:00:06,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 21 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 36 [2022-11-19 07:00:06,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:06,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:06,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 60 select indices, 60 select index equivalence classes, 1893 disjoint index pairs (out of 1770 index pairs), introduced 60 new quantified variables, introduced 0 case distinctions, treesize of input 310 treesize of output 491 [2022-11-19 07:00:11,931 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:00:11,941 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:00:11,953 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2022-11-19 07:00:15,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 63 select indices, 63 select index equivalence classes, 1953 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 190 [2022-11-19 07:00:15,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:15,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 113 select indices, 113 select index equivalence classes, 1300 disjoint index pairs (out of 6328 index pairs), introduced 113 new quantified variables, introduced 0 case distinctions, treesize of input 902 treesize of output 340 [2022-11-19 07:00:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:16,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:16,328 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1893 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-19 07:00:24,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:24,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:24,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 62 select indices, 62 select index equivalence classes, 1893 disjoint index pairs (out of 1891 index pairs), introduced 62 new quantified variables, introduced 0 case distinctions, treesize of input 311 treesize of output 187 [2022-11-19 07:00:25,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 63 select indices, 63 select index equivalence classes, 1953 disjoint index pairs (out of 1953 index pairs), introduced 63 new quantified variables, introduced 0 case distinctions, treesize of input 316 treesize of output 190 [2022-11-19 07:00:25,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:00:25,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 113 select indices, 113 select index equivalence classes, 1300 disjoint index pairs (out of 6328 index pairs), introduced 113 new quantified variables, introduced 0 case distinctions, treesize of input 902 treesize of output 340 [2022-11-19 07:01:14,481 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:01:15,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:01:15,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:01:16,196 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:01:16,241 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:01:16,257 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:01:54,652 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:01:54,762 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:01:55,184 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:01:56,321 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:01:56,336 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:01:56,381 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:02:40,557 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:02:40,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:02:40,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:02:42,393 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:02:42,397 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:02:42,432 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:03:14,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:14,810 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:03:15,280 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:03:16,049 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:03:16,080 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:03:16,116 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:24,480 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:04:24,709 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:25,188 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:04:26,190 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:26,209 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:04:26,260 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:05:25,381 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:05:25,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:05:26,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:05:27,111 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:05:27,165 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:05:27,169 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:06:25,394 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:06:25,725 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:06:25,987 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:06:27,105 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:06:27,133 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:06:27,153 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:31,120 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-11-19 07:07:31,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:07:31,369 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-11-19 07:07:32,811 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:32,824 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:07:32,829 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:10:22,077 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_memset with input of size 1403 for LOIs [2022-11-19 07:10:35,382 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_init_zalloc with input of size 114 for LOIs [2022-11-19 07:10:35,417 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-19 07:10:35,435 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-19 07:10:35,954 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.meminit with input of size 135 for LOIs [2022-11-19 07:10:35,973 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 140 for LOIs [2022-11-19 07:10:36,018 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 1403 for LOIs [2022-11-19 07:10:40,693 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:12:03,657 WARN L233 SmtUtils]: Spent 1.37m on a formula simplification. DAG size of input: 2034 DAG size of output: 1802 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)