./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--usb--host--fotg210-hcd.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_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/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_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/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_56706fa0-70cd-4d54-a660-65e7fdd80c85/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 6831c80473b3bd102fb10b7b3c65e4c88728eb3739081530d9e505e798afb064 --- 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 06:57:25,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 06:57:25,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 06:57:25,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 06:57:25,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 06:57:25,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 06:57:25,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 06:57:25,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 06:57:25,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 06:57:25,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 06:57:25,785 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 06:57:25,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 06:57:25,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 06:57:25,796 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 06:57:25,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 06:57:25,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 06:57:25,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 06:57:25,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 06:57:25,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 06:57:25,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 06:57:25,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 06:57:25,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 06:57:25,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 06:57:25,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 06:57:25,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 06:57:25,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 06:57:25,833 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 06:57:25,834 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 06:57:25,835 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 06:57:25,836 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 06:57:25,838 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 06:57:25,839 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 06:57:25,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 06:57:25,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 06:57:25,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 06:57:25,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 06:57:25,848 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 06:57:25,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 06:57:25,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 06:57:25,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 06:57:25,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 06:57:25,852 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 06:57:25,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 06:57:25,878 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 06:57:25,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 06:57:25,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 06:57:25,879 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 06:57:25,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 06:57:25,880 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 06:57:25,880 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 06:57:25,880 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 06:57:25,881 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 06:57:25,881 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 06:57:25,881 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 06:57:25,881 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 06:57:25,881 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 06:57:25,882 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 06:57:25,882 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 06:57:25,882 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 06:57:25,882 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 06:57:25,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 06:57:25,884 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 06:57:25,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 06:57:25,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 06:57:25,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 06:57:25,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 06:57:25,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 06:57:25,885 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 06:57:25,885 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 06:57:25,885 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 06:57:25,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 06:57:25,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:57:25,886 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 06:57:25,886 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 06:57:25,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 06:57:25,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 06:57:25,887 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 06:57:25,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 06:57:25,887 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 06:57:25,888 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 06:57:25,888 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_56706fa0-70cd-4d54-a660-65e7fdd80c85/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6831c80473b3bd102fb10b7b3c65e4c88728eb3739081530d9e505e798afb064 [2022-11-19 06:57:26,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 06:57:26,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 06:57:26,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 06:57:26,167 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 06:57:26,171 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 06:57:26,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i [2022-11-19 06:57:26,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/data/311ae1898/c7378a047c0d4c94a56527d3644e5f7e/FLAG9f23b87c4 [2022-11-19 06:57:27,243 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 06:57:27,243 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i [2022-11-19 06:57:27,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/data/311ae1898/c7378a047c0d4c94a56527d3644e5f7e/FLAG9f23b87c4 [2022-11-19 06:57:27,731 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/data/311ae1898/c7378a047c0d4c94a56527d3644e5f7e [2022-11-19 06:57:27,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 06:57:27,736 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 06:57:27,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 06:57:27,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 06:57:27,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 06:57:27,742 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:27" (1/1) ... [2022-11-19 06:57:27,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f7a9105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:27, skipping insertion in model container [2022-11-19 06:57:27,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:57:27" (1/1) ... [2022-11-19 06:57:27,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 06:57:27,899 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 06:57:30,789 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_56706fa0-70cd-4d54-a660-65e7fdd80c85/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i[367830,367843] [2022-11-19 06:57:30,828 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-19 06:57:30,837 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:57:30,865 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 06:57:31,466 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_56706fa0-70cd-4d54-a660-65e7fdd80c85/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i[367830,367843] [2022-11-19 06:57:31,473 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-19 06:57:31,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 06:57:31,596 INFO L208 MainTranslator]: Completed translation [2022-11-19 06:57:31,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31 WrapperNode [2022-11-19 06:57:31,597 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 06:57:31,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 06:57:31,599 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 06:57:31,599 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 06:57:31,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:31,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,250 INFO L138 Inliner]: procedures = 335, calls = 4720, calls flagged for inlining = 153, calls inlined = 151, statements flattened = 12127 [2022-11-19 06:57:32,251 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 06:57:32,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 06:57:32,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 06:57:32,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 06:57:32,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,789 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,867 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 06:57:32,868 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 06:57:32,868 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 06:57:32,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 06:57:32,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (1/1) ... [2022-11-19 06:57:32,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 06:57:32,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 06:57:32,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 06:57:33,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56706fa0-70cd-4d54-a660-65e7fdd80c85/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 06:57:33,115 INFO L130 BoogieDeclarations]: Found specification of procedure single_unlink_async [2022-11-19 06:57:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure single_unlink_async [2022-11-19 06:57:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_poll_PSS [2022-11-19 06:57:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_poll_PSS [2022-11-19 06:57:33,116 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2022-11-19 06:57:33,116 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2022-11-19 06:57:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2022-11-19 06:57:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2022-11-19 06:57:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure platform_driver_unregister [2022-11-19 06:57:33,117 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_driver_unregister [2022-11-19 06:57:33,117 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_qh_alloc [2022-11-19 06:57:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_qh_alloc [2022-11-19 06:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 06:57:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 06:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 06:57:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 06:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_urb_dequeue [2022-11-19 06:57:33,118 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_urb_dequeue [2022-11-19 06:57:33,118 INFO L130 BoogieDeclarations]: Found specification of procedure turn_on_io_watchdog [2022-11-19 06:57:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure turn_on_io_watchdog [2022-11-19 06:57:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_to_hcd [2022-11-19 06:57:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_to_hcd [2022-11-19 06:57:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-19 06:57:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-19 06:57:33,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-11-19 06:57:33,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-11-19 06:57:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 06:57:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 06:57:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpup [2022-11-19 06:57:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpup [2022-11-19 06:57:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure usb_disabled [2022-11-19 06:57:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_disabled [2022-11-19 06:57:33,120 INFO L130 BoogieDeclarations]: Found specification of procedure qh_destroy [2022-11-19 06:57:33,120 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_destroy [2022-11-19 06:57:33,121 INFO L130 BoogieDeclarations]: Found specification of procedure end_free_itds [2022-11-19 06:57:33,134 INFO L138 BoogieDeclarations]: Found implementation of procedure end_free_itds [2022-11-19 06:57:33,134 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 06:57:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 06:57:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 06:57:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 06:57:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_hcd_remove [2022-11-19 06:57:33,135 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_hcd_remove [2022-11-19 06:57:33,135 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2022-11-19 06:57:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2022-11-19 06:57:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_poll_ASS [2022-11-19 06:57:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_poll_ASS [2022-11-19 06:57:33,136 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_buffer [2022-11-19 06:57:33,136 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_buffer [2022-11-19 06:57:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_run [2022-11-19 06:57:33,137 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_run [2022-11-19 06:57:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-19 06:57:33,137 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-19 06:57:33,137 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 06:57:33,137 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 06:57:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_intr [2022-11-19 06:57:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_intr [2022-11-19 06:57:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 06:57:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 06:57:33,138 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_hub_status_data [2022-11-19 06:57:33,138 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_hub_status_data [2022-11-19 06:57:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_set_command_bit [2022-11-19 06:57:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_set_command_bit [2022-11-19 06:57:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure debug_output [2022-11-19 06:57:33,139 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_output [2022-11-19 06:57:33,139 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2022-11-19 06:57:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2022-11-19 06:57:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_qtd_init [2022-11-19 06:57:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_qtd_init [2022-11-19 06:57:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-11-19 06:57:33,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-11-19 06:57:33,140 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_relinquish_port [2022-11-19 06:57:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_relinquish_port [2022-11-19 06:57:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_fotg210 [2022-11-19 06:57:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_fotg210 [2022-11-19 06:57:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_irq [2022-11-19 06:57:33,141 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_irq [2022-11-19 06:57:33,141 INFO L130 BoogieDeclarations]: Found specification of procedure start_free_itds [2022-11-19 06:57:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure start_free_itds [2022-11-19 06:57:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_stop [2022-11-19 06:57:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_stop [2022-11-19 06:57:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 06:57:33,142 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 06:57:33,142 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 06:57:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure bus_to_hcd [2022-11-19 06:57:33,143 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_to_hcd [2022-11-19 06:57:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_clear_command_bit [2022-11-19 06:57:33,143 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_clear_command_bit [2022-11-19 06:57:33,143 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2022-11-19 06:57:33,143 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2022-11-19 06:57:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 06:57:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 06:57:33,144 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_create [2022-11-19 06:57:33,144 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_create [2022-11-19 06:57:33,158 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_num [2022-11-19 06:57:33,158 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_num [2022-11-19 06:57:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-19 06:57:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-19 06:57:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2022-11-19 06:57:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2022-11-19 06:57:33,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-11-19 06:57:33,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-11-19 06:57:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 06:57:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 06:57:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 06:57:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 06:57:33,160 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_readl [2022-11-19 06:57:33,160 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_readl [2022-11-19 06:57:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_destroy [2022-11-19 06:57:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_destroy [2022-11-19 06:57:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_clear_tt_buffer [2022-11-19 06:57:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_clear_tt_buffer [2022-11-19 06:57:33,161 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2022-11-19 06:57:33,161 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2022-11-19 06:57:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 06:57:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 06:57:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_writel [2022-11-19 06:57:33,162 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_writel [2022-11-19 06:57:33,162 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2022-11-19 06:57:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2022-11-19 06:57:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure start_iaa_cycle [2022-11-19 06:57:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure start_iaa_cycle [2022-11-19 06:57:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_halt [2022-11-19 06:57:33,163 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_halt [2022-11-19 06:57:33,163 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove [2022-11-19 06:57:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove [2022-11-19 06:57:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_hcd_probe [2022-11-19 06:57:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_hcd_probe [2022-11-19 06:57:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_usecs [2022-11-19 06:57:33,164 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_usecs [2022-11-19 06:57:33,164 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 06:57:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 06:57:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_endpoint_disable [2022-11-19 06:57:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_endpoint_disable [2022-11-19 06:57:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_dir [2022-11-19 06:57:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_dir [2022-11-19 06:57:33,165 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 06:57:33,165 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 06:57:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2022-11-19 06:57:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2022-11-19 06:57:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_mem_cleanup [2022-11-19 06:57:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_mem_cleanup [2022-11-19 06:57:33,166 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_handle_controller_death [2022-11-19 06:57:33,166 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_handle_controller_death [2022-11-19 06:57:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-19 06:57:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-19 06:57:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure disable_periodic [2022-11-19 06:57:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_periodic [2022-11-19 06:57:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2022-11-19 06:57:33,167 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2022-11-19 06:57:33,167 INFO L130 BoogieDeclarations]: Found specification of procedure enable_periodic [2022-11-19 06:57:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_periodic [2022-11-19 06:57:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_port_speed [2022-11-19 06:57:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_port_speed [2022-11-19 06:57:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure qh_lines [2022-11-19 06:57:33,168 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_lines [2022-11-19 06:57:33,168 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-19 06:57:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-19 06:57:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_shutdown [2022-11-19 06:57:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_shutdown [2022-11-19 06:57:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 06:57:33,169 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 06:57:33,169 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_handle_intr_unlinks [2022-11-19 06:57:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_handle_intr_unlinks [2022-11-19 06:57:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_enable_event [2022-11-19 06:57:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_enable_event [2022-11-19 06:57:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_qtd_free [2022-11-19 06:57:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_qtd_free [2022-11-19 06:57:33,170 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_read_frame_index [2022-11-19 06:57:33,170 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_read_frame_index [2022-11-19 06:57:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_unlink_urb_from_ep [2022-11-19 06:57:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_unlink_urb_from_ep [2022-11-19 06:57:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 06:57:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_quiesce [2022-11-19 06:57:33,171 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_quiesce [2022-11-19 06:57:33,171 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2022-11-19 06:57:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2022-11-19 06:57:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_get_frame [2022-11-19 06:57:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_get_frame [2022-11-19 06:57:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2022-11-19 06:57:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2022-11-19 06:57:33,172 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-19 06:57:33,172 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-19 06:57:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-19 06:57:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-19 06:57:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-19 06:57:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-19 06:57:33,173 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_silence_controller [2022-11-19 06:57:33,173 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_silence_controller [2022-11-19 06:57:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_remove_recursive [2022-11-19 06:57:33,174 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_remove_recursive [2022-11-19 06:57:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 06:57:33,174 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 06:57:33,174 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_clear_tt_buffer_complete [2022-11-19 06:57:33,174 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_clear_tt_buffer_complete [2022-11-19 06:57:33,175 INFO L130 BoogieDeclarations]: Found specification of procedure debugfs_create_file [2022-11-19 06:57:33,175 INFO L138 BoogieDeclarations]: Found implementation of procedure debugfs_create_file [2022-11-19 06:57:33,175 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 06:57:33,175 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 06:57:33,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 06:57:33,175 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_endpoint_reset [2022-11-19 06:57:33,176 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_endpoint_reset [2022-11-19 06:57:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hcd_link_urb_to_ep [2022-11-19 06:57:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hcd_link_urb_to_ep [2022-11-19 06:57:33,190 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-19 06:57:33,190 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-19 06:57:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 06:57:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 06:57:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure iso_sched_free [2022-11-19 06:57:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure iso_sched_free [2022-11-19 06:57:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-19 06:57:33,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-19 06:57:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 06:57:33,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2022-11-19 06:57:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_reset [2022-11-19 06:57:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_reset [2022-11-19 06:57:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-19 06:57:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-19 06:57:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-19 06:57:33,192 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-19 06:57:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 06:57:33,192 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2022-11-19 06:57:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2022-11-19 06:57:33,193 INFO L130 BoogieDeclarations]: Found specification of procedure hrtimer_cancel [2022-11-19 06:57:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure hrtimer_cancel [2022-11-19 06:57:33,193 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2022-11-19 06:57:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2022-11-19 06:57:33,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 06:57:33,193 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_qtd_alloc [2022-11-19 06:57:33,193 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_qtd_alloc [2022-11-19 06:57:33,193 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_work [2022-11-19 06:57:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_work [2022-11-19 06:57:33,194 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2022-11-19 06:57:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2022-11-19 06:57:33,194 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-19 06:57:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-19 06:57:33,194 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:57:33,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 06:57:33,197 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_hub_control [2022-11-19 06:57:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_hub_control [2022-11-19 06:57:33,197 INFO L130 BoogieDeclarations]: Found specification of procedure check_period [2022-11-19 06:57:33,197 INFO L138 BoogieDeclarations]: Found implementation of procedure check_period [2022-11-19 06:57:33,197 INFO L130 BoogieDeclarations]: Found specification of procedure default_llseek [2022-11-19 06:57:33,199 INFO L138 BoogieDeclarations]: Found implementation of procedure default_llseek [2022-11-19 06:57:33,199 INFO L130 BoogieDeclarations]: Found specification of procedure __list_splice [2022-11-19 06:57:33,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_splice [2022-11-19 06:57:33,200 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 06:57:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 06:57:33,204 INFO L130 BoogieDeclarations]: Found specification of procedure shadow_next_periodic [2022-11-19 06:57:33,204 INFO L138 BoogieDeclarations]: Found implementation of procedure shadow_next_periodic [2022-11-19 06:57:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-19 06:57:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-19 06:57:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure hc32_to_cpu [2022-11-19 06:57:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure hc32_to_cpu [2022-11-19 06:57:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure handshake [2022-11-19 06:57:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure handshake [2022-11-19 06:57:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure debug_close [2022-11-19 06:57:33,205 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_close [2022-11-19 06:57:33,205 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2022-11-19 06:57:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2022-11-19 06:57:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-19 06:57:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-19 06:57:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_urb_enqueue [2022-11-19 06:57:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_urb_enqueue [2022-11-19 06:57:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2022-11-19 06:57:33,206 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2022-11-19 06:57:33,206 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-19 06:57:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-19 06:57:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_to_hc32 [2022-11-19 06:57:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_to_hc32 [2022-11-19 06:57:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-19 06:57:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-19 06:57:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 06:57:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 06:57:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 06:57:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 06:57:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-19 06:57:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-19 06:57:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2022-11-19 06:57:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2022-11-19 06:57:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 06:57:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_fotg210_init [2022-11-19 06:57:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_fotg210_init [2022-11-19 06:57:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_port_handed_over [2022-11-19 06:57:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_port_handed_over [2022-11-19 06:57:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure fotg210_urb_done [2022-11-19 06:57:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure fotg210_urb_done [2022-11-19 06:57:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 06:57:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 06:57:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-11-19 06:57:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-11-19 06:57:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 06:57:33,209 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 06:57:34,827 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 06:57:34,831 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 06:57:35,552 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 06:57:47,612 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_platform_driver_unregister_29_returnLabel#1: assume { :end_inline_ldv_platform_driver_unregister_29 } true; [2022-11-19 06:57:48,037 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 06:57:52,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 06:57:52,466 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 06:57:52,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:52 BoogieIcfgContainer [2022-11-19 06:57:52,474 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 06:57:52,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 06:57:52,477 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 06:57:52,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 06:57:52,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:57:27" (1/3) ... [2022-11-19 06:57:52,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cf5b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:52, skipping insertion in model container [2022-11-19 06:57:52,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:57:31" (2/3) ... [2022-11-19 06:57:52,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cf5b7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:57:52, skipping insertion in model container [2022-11-19 06:57:52,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:57:52" (3/3) ... [2022-11-19 06:57:52,485 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--fotg210-hcd.ko-entry_point.cil.out.i [2022-11-19 06:57:52,508 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 06:57:52,509 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 06:57:52,609 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 06:57:52,616 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;@67afef56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 06:57:52,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 06:57:52,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 2915 states, 1814 states have (on average 1.3450937155457552) internal successors, (2440), 1900 states have internal predecessors, (2440), 961 states have call successors, (961), 139 states have call predecessors, (961), 138 states have return successors, (953), 934 states have call predecessors, (953), 953 states have call successors, (953) [2022-11-19 06:57:52,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-11-19 06:57:52,647 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:57:52,648 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:52,649 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:57:52,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:57:52,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1983073014, now seen corresponding path program 1 times [2022-11-19 06:57:52,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:57:52,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774991705] [2022-11-19 06:57:52,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:57:52,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:57:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:57:54,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2022-11-19 06:57:54,189 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:57:54,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774991705] [2022-11-19 06:57:54,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774991705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:57:54,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:57:54,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:57:54,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890133133] [2022-11-19 06:57:54,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:57:54,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:57:54,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:57:54,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:57:54,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:57:54,259 INFO L87 Difference]: Start difference. First operand has 2915 states, 1814 states have (on average 1.3450937155457552) internal successors, (2440), 1900 states have internal predecessors, (2440), 961 states have call successors, (961), 139 states have call predecessors, (961), 138 states have return successors, (953), 934 states have call predecessors, (953), 953 states have call successors, (953) Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 06:57:56,375 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:01,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:01,140 INFO L93 Difference]: Finished difference Result 8598 states and 12922 transitions. [2022-11-19 06:58:01,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:01,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 296 [2022-11-19 06:58:01,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:01,210 INFO L225 Difference]: With dead ends: 8598 [2022-11-19 06:58:01,210 INFO L226 Difference]: Without dead ends: 5691 [2022-11-19 06:58:01,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:01,243 INFO L413 NwaCegarLoop]: 4886 mSDtfsCounter, 4220 mSDsluCounter, 3951 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4220 SdHoareTripleChecker+Valid, 8837 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:01,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4220 Valid, 8837 Invalid, 789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 787 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 06:58:01,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5691 states. [2022-11-19 06:58:01,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5691 to 5686. [2022-11-19 06:58:01,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5686 states, 3555 states have (on average 1.3406469760900142) internal successors, (4766), 3707 states have internal predecessors, (4766), 1859 states have call successors, (1859), 272 states have call predecessors, (1859), 271 states have return successors, (1857), 1818 states have call predecessors, (1857), 1857 states have call successors, (1857) [2022-11-19 06:58:01,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5686 states to 5686 states and 8482 transitions. [2022-11-19 06:58:01,928 INFO L78 Accepts]: Start accepts. Automaton has 5686 states and 8482 transitions. Word has length 296 [2022-11-19 06:58:01,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:01,932 INFO L495 AbstractCegarLoop]: Abstraction has 5686 states and 8482 transitions. [2022-11-19 06:58:01,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 06:58:01,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5686 states and 8482 transitions. [2022-11-19 06:58:01,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2022-11-19 06:58:01,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:01,950 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:01,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 06:58:01,954 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:01,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:01,955 INFO L85 PathProgramCache]: Analyzing trace with hash 83464828, now seen corresponding path program 1 times [2022-11-19 06:58:01,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:01,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763721867] [2022-11-19 06:58:01,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:01,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2022-11-19 06:58:02,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:02,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763721867] [2022-11-19 06:58:02,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763721867] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:02,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:02,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:58:02,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994580746] [2022-11-19 06:58:02,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:03,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:03,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:03,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:03,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:03,004 INFO L87 Difference]: Start difference. First operand 5686 states and 8482 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 06:58:05,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:09,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:09,481 INFO L93 Difference]: Finished difference Result 16889 states and 25191 transitions. [2022-11-19 06:58:09,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:09,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 297 [2022-11-19 06:58:09,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:09,581 INFO L225 Difference]: With dead ends: 16889 [2022-11-19 06:58:09,581 INFO L226 Difference]: Without dead ends: 11264 [2022-11-19 06:58:09,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:09,625 INFO L413 NwaCegarLoop]: 4863 mSDtfsCounter, 4170 mSDsluCounter, 3909 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4170 SdHoareTripleChecker+Valid, 8772 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:09,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4170 Valid, 8772 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 782 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-11-19 06:58:09,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11264 states. [2022-11-19 06:58:10,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11264 to 11258. [2022-11-19 06:58:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11258 states, 7043 states have (on average 1.3413318188272043) internal successors, (9447), 7347 states have internal predecessors, (9447), 3673 states have call successors, (3673), 542 states have call predecessors, (3673), 541 states have return successors, (3671), 3592 states have call predecessors, (3671), 3671 states have call successors, (3671) [2022-11-19 06:58:10,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11258 states to 11258 states and 16791 transitions. [2022-11-19 06:58:10,444 INFO L78 Accepts]: Start accepts. Automaton has 11258 states and 16791 transitions. Word has length 297 [2022-11-19 06:58:10,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:10,450 INFO L495 AbstractCegarLoop]: Abstraction has 11258 states and 16791 transitions. [2022-11-19 06:58:10,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 06:58:10,451 INFO L276 IsEmpty]: Start isEmpty. Operand 11258 states and 16791 transitions. [2022-11-19 06:58:10,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-19 06:58:10,458 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:10,458 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:10,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 06:58:10,459 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1734457394, now seen corresponding path program 1 times [2022-11-19 06:58:10,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:10,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584846215] [2022-11-19 06:58:10,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:10,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:11,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2022-11-19 06:58:11,262 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:11,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584846215] [2022-11-19 06:58:11,262 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584846215] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:11,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:11,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:58:11,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783402450] [2022-11-19 06:58:11,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:11,264 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:11,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:11,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:11,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:11,266 INFO L87 Difference]: Start difference. First operand 11258 states and 16791 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 06:58:13,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:18,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:18,113 INFO L93 Difference]: Finished difference Result 33268 states and 49596 transitions. [2022-11-19 06:58:18,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:18,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 302 [2022-11-19 06:58:18,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:18,309 INFO L225 Difference]: With dead ends: 33268 [2022-11-19 06:58:18,309 INFO L226 Difference]: Without dead ends: 22071 [2022-11-19 06:58:18,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:18,391 INFO L413 NwaCegarLoop]: 5148 mSDtfsCounter, 4144 mSDsluCounter, 3908 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4144 SdHoareTripleChecker+Valid, 9056 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:18,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4144 Valid, 9056 Invalid, 832 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 830 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2022-11-19 06:58:18,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22071 states. [2022-11-19 06:58:19,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22071 to 22067. [2022-11-19 06:58:19,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22067 states, 13812 states have (on average 1.3413698233420215) internal successors, (18527), 14402 states have internal predecessors, (18527), 7181 states have call successors, (7181), 1074 states have call predecessors, (7181), 1073 states have return successors, (7179), 7031 states have call predecessors, (7179), 7179 states have call successors, (7179) [2022-11-19 06:58:20,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22067 states to 22067 states and 32887 transitions. [2022-11-19 06:58:20,138 INFO L78 Accepts]: Start accepts. Automaton has 22067 states and 32887 transitions. Word has length 302 [2022-11-19 06:58:20,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:20,139 INFO L495 AbstractCegarLoop]: Abstraction has 22067 states and 32887 transitions. [2022-11-19 06:58:20,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-11-19 06:58:20,140 INFO L276 IsEmpty]: Start isEmpty. Operand 22067 states and 32887 transitions. [2022-11-19 06:58:20,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2022-11-19 06:58:20,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:20,152 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:58:20,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 06:58:20,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:20,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash -918599414, now seen corresponding path program 1 times [2022-11-19 06:58:20,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:20,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263339400] [2022-11-19 06:58:20,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:20,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:21,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2022-11-19 06:58:21,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:21,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263339400] [2022-11-19 06:58:21,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263339400] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:21,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:21,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:58:21,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866294441] [2022-11-19 06:58:21,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:21,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:21,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:21,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:21,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:21,041 INFO L87 Difference]: Start difference. First operand 22067 states and 32887 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 06:58:23,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:29,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:29,345 INFO L93 Difference]: Finished difference Result 56446 states and 83421 transitions. [2022-11-19 06:58:29,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:29,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 329 [2022-11-19 06:58:29,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:29,609 INFO L225 Difference]: With dead ends: 56446 [2022-11-19 06:58:29,609 INFO L226 Difference]: Without dead ends: 34440 [2022-11-19 06:58:29,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:29,756 INFO L413 NwaCegarLoop]: 5626 mSDtfsCounter, 2468 mSDsluCounter, 3801 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2468 SdHoareTripleChecker+Valid, 9427 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:29,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2468 Valid, 9427 Invalid, 1052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1050 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-19 06:58:29,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34440 states. [2022-11-19 06:58:32,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34440 to 34432. [2022-11-19 06:58:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34432 states, 21602 states have (on average 1.332654383853347) internal successors, (28788), 22498 states have internal predecessors, (28788), 10911 states have call successors, (10911), 1919 states have call predecessors, (10911), 1918 states have return successors, (10909), 10680 states have call predecessors, (10909), 10909 states have call successors, (10909) [2022-11-19 06:58:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34432 states to 34432 states and 50608 transitions. [2022-11-19 06:58:32,600 INFO L78 Accepts]: Start accepts. Automaton has 34432 states and 50608 transitions. Word has length 329 [2022-11-19 06:58:32,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:32,602 INFO L495 AbstractCegarLoop]: Abstraction has 34432 states and 50608 transitions. [2022-11-19 06:58:32,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-19 06:58:32,603 INFO L276 IsEmpty]: Start isEmpty. Operand 34432 states and 50608 transitions. [2022-11-19 06:58:32,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2022-11-19 06:58:32,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:32,614 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 18, 18, 18, 18, 18, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:32,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 06:58:32,614 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:32,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:32,615 INFO L85 PathProgramCache]: Analyzing trace with hash -907225149, now seen corresponding path program 1 times [2022-11-19 06:58:32,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:32,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687805043] [2022-11-19 06:58:32,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:32,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:33,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3173 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3171 trivial. 0 not checked. [2022-11-19 06:58:33,985 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:33,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687805043] [2022-11-19 06:58:33,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687805043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:33,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:33,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 06:58:33,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36856890] [2022-11-19 06:58:33,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:33,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 06:58:33,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:33,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 06:58:33,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 06:58:33,989 INFO L87 Difference]: Start difference. First operand 34432 states and 50608 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 06:58:36,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:42,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:42,331 INFO L93 Difference]: Finished difference Result 68851 states and 101191 transitions. [2022-11-19 06:58:42,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 06:58:42,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 445 [2022-11-19 06:58:42,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:42,508 INFO L225 Difference]: With dead ends: 68851 [2022-11-19 06:58:42,508 INFO L226 Difference]: Without dead ends: 34432 [2022-11-19 06:58:42,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 06:58:42,653 INFO L413 NwaCegarLoop]: 3921 mSDtfsCounter, 3 mSDsluCounter, 7837 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11758 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:42,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11758 Invalid, 1158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 1156 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-19 06:58:42,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34432 states. [2022-11-19 06:58:44,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34432 to 34432. [2022-11-19 06:58:44,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34432 states, 21602 states have (on average 1.3319137116933617) internal successors, (28772), 22498 states have internal predecessors, (28772), 10911 states have call successors, (10911), 1919 states have call predecessors, (10911), 1918 states have return successors, (10909), 10680 states have call predecessors, (10909), 10909 states have call successors, (10909) [2022-11-19 06:58:44,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34432 states to 34432 states and 50592 transitions. [2022-11-19 06:58:45,004 INFO L78 Accepts]: Start accepts. Automaton has 34432 states and 50592 transitions. Word has length 445 [2022-11-19 06:58:45,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:45,005 INFO L495 AbstractCegarLoop]: Abstraction has 34432 states and 50592 transitions. [2022-11-19 06:58:45,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 2 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-11-19 06:58:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 34432 states and 50592 transitions. [2022-11-19 06:58:45,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 458 [2022-11-19 06:58:45,015 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:45,015 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 10, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:45,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 06:58:45,016 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:45,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:45,016 INFO L85 PathProgramCache]: Analyzing trace with hash -106558792, now seen corresponding path program 1 times [2022-11-19 06:58:45,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:45,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040350946] [2022-11-19 06:58:45,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:45,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:58:46,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1661 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1661 trivial. 0 not checked. [2022-11-19 06:58:46,341 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:58:46,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040350946] [2022-11-19 06:58:46,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040350946] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:58:46,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:58:46,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:58:46,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840112977] [2022-11-19 06:58:46,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:58:46,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:58:46,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:58:46,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:58:46,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:46,344 INFO L87 Difference]: Start difference. First operand 34432 states and 50592 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-19 06:58:48,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:58:54,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:58:54,693 INFO L93 Difference]: Finished difference Result 102366 states and 150476 transitions. [2022-11-19 06:58:54,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:58:54,694 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 457 [2022-11-19 06:58:54,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:58:55,074 INFO L225 Difference]: With dead ends: 102366 [2022-11-19 06:58:55,075 INFO L226 Difference]: Without dead ends: 67995 [2022-11-19 06:58:55,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:58:55,244 INFO L413 NwaCegarLoop]: 5262 mSDtfsCounter, 4180 mSDsluCounter, 3913 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4180 SdHoareTripleChecker+Valid, 9175 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 06:58:55,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4180 Valid, 9175 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 823 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 06:58:55,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67995 states. [2022-11-19 06:58:58,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67995 to 67991. [2022-11-19 06:58:58,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67991 states, 42662 states have (on average 1.3321457034363133) internal successors, (56832), 44451 states have internal predecessors, (56832), 21562 states have call successors, (21562), 3767 states have call predecessors, (21562), 3766 states have return successors, (21560), 21102 states have call predecessors, (21560), 21560 states have call successors, (21560) [2022-11-19 06:58:58,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67991 states to 67991 states and 99954 transitions. [2022-11-19 06:58:58,889 INFO L78 Accepts]: Start accepts. Automaton has 67991 states and 99954 transitions. Word has length 457 [2022-11-19 06:58:58,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:58:58,890 INFO L495 AbstractCegarLoop]: Abstraction has 67991 states and 99954 transitions. [2022-11-19 06:58:58,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 2 states have call successors, (64), 2 states have call predecessors, (64), 1 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2022-11-19 06:58:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 67991 states and 99954 transitions. [2022-11-19 06:58:58,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2022-11-19 06:58:58,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:58:58,902 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 18, 18, 18, 18, 18, 18, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:58:58,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 06:58:58,902 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:58:58,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:58:58,903 INFO L85 PathProgramCache]: Analyzing trace with hash -2056394458, now seen corresponding path program 1 times [2022-11-19 06:58:58,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:58:58,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060051279] [2022-11-19 06:58:58,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:58:58,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:58:59,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:00,391 INFO L134 CoverageAnalysis]: Checked inductivity of 3173 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3171 trivial. 0 not checked. [2022-11-19 06:59:00,392 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:00,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060051279] [2022-11-19 06:59:00,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060051279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:00,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:00,393 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:59:00,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771737683] [2022-11-19 06:59:00,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:00,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:59:00,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:00,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:59:00,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:59:00,396 INFO L87 Difference]: Start difference. First operand 67991 states and 99954 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-19 06:59:02,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 06:59:10,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 06:59:10,544 INFO L93 Difference]: Finished difference Result 168324 states and 247482 transitions. [2022-11-19 06:59:10,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 06:59:10,544 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) Word has length 473 [2022-11-19 06:59:10,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 06:59:11,169 INFO L225 Difference]: With dead ends: 168324 [2022-11-19 06:59:11,170 INFO L226 Difference]: Without dead ends: 100394 [2022-11-19 06:59:11,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:59:11,470 INFO L413 NwaCegarLoop]: 5558 mSDtfsCounter, 4190 mSDsluCounter, 3901 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4190 SdHoareTripleChecker+Valid, 9459 SdHoareTripleChecker+Invalid, 908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-19 06:59:11,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4190 Valid, 9459 Invalid, 908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 901 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-19 06:59:11,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100394 states. [2022-11-19 06:59:16,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100394 to 100388. [2022-11-19 06:59:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100388 states, 63035 states have (on average 1.3319584357896406) internal successors, (83960), 65662 states have internal predecessors, (83960), 31787 states have call successors, (31787), 5566 states have call predecessors, (31787), 5565 states have return successors, (31785), 31115 states have call predecessors, (31785), 31785 states have call successors, (31785) [2022-11-19 06:59:16,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100388 states to 100388 states and 147532 transitions. [2022-11-19 06:59:16,810 INFO L78 Accepts]: Start accepts. Automaton has 100388 states and 147532 transitions. Word has length 473 [2022-11-19 06:59:16,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 06:59:16,811 INFO L495 AbstractCegarLoop]: Abstraction has 100388 states and 147532 transitions. [2022-11-19 06:59:16,811 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-19 06:59:16,811 INFO L276 IsEmpty]: Start isEmpty. Operand 100388 states and 147532 transitions. [2022-11-19 06:59:16,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2022-11-19 06:59:16,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 06:59:16,823 INFO L195 NwaCegarLoop]: trace histogram [21, 21, 21, 21, 21, 21, 21, 21, 21, 18, 18, 18, 18, 18, 18, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 06:59:16,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 06:59:16,824 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 06:59:16,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 06:59:16,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2105467360, now seen corresponding path program 1 times [2022-11-19 06:59:16,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 06:59:16,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969799282] [2022-11-19 06:59:16,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 06:59:16,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 06:59:17,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 06:59:18,227 INFO L134 CoverageAnalysis]: Checked inductivity of 3174 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3171 trivial. 0 not checked. [2022-11-19 06:59:18,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 06:59:18,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969799282] [2022-11-19 06:59:18,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969799282] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 06:59:18,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 06:59:18,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 06:59:18,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634617945] [2022-11-19 06:59:18,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 06:59:18,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 06:59:18,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 06:59:18,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 06:59:18,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 06:59:18,230 INFO L87 Difference]: Start difference. First operand 100388 states and 147532 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (49), 2 states have call predecessors, (49), 2 states have call successors, (49) [2022-11-19 06:59:20,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []