./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7 --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 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:20:10,732 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:20:10,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:20:10,782 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:20:10,783 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:20:10,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:20:10,790 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:20:10,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:20:10,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:20:10,803 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:20:10,804 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:20:10,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:20:10,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:20:10,809 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:20:10,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:20:10,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:20:10,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:20:10,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:20:10,822 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:20:10,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:20:10,831 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:20:10,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:20:10,835 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:20:10,836 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:20:10,842 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:20:10,842 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:20:10,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:20:10,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:20:10,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:20:10,846 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:20:10,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:20:10,848 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:20:10,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:20:10,851 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:20:10,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:20:10,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:20:10,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:20:10,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:20:10,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:20:10,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:20:10,855 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:20:10,856 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-25 20:20:10,905 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:20:10,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:20:10,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:20:10,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:20:10,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:20:10,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:20:10,915 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:20:10,916 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:20:10,916 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:20:10,916 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:20:10,917 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:20:10,917 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:20:10,918 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:20:10,918 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:20:10,918 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:20:10,918 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:20:10,919 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:20:10,919 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:20:10,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:20:10,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:20:10,920 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:20:10,920 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:20:10,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:20:10,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:20:10,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:20:10,921 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:20:10,923 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:20:10,923 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:20:10,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:20:10,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:20:10,924 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:20:10,924 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:20:10,924 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:20:10,924 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:20:10,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:20:10,925 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:20:10,925 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:20:10,925 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:20:10,925 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2021-11-25 20:20:11,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:20:11,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:20:11,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:20:11,246 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:20:11,246 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:20:11,248 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2021-11-25 20:20:11,330 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/data/1e7f92477/9d6b23d58e254ff59f7fd730e582ef48/FLAG97adaeca4 [2021-11-25 20:20:12,230 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:20:12,231 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2021-11-25 20:20:12,281 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/data/1e7f92477/9d6b23d58e254ff59f7fd730e582ef48/FLAG97adaeca4 [2021-11-25 20:20:12,742 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/data/1e7f92477/9d6b23d58e254ff59f7fd730e582ef48 [2021-11-25 20:20:12,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:20:12,745 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:20:12,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:20:12,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:20:12,750 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:20:12,751 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:20:12" (1/1) ... [2021-11-25 20:20:12,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f031e05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:12, skipping insertion in model container [2021-11-25 20:20:12,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:20:12" (1/1) ... [2021-11-25 20:20:12,761 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:20:12,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:20:14,829 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2021-11-25 20:20:14,917 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:20:14,978 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:20:15,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2021-11-25 20:20:15,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:20:15,427 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:20:15,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15 WrapperNode [2021-11-25 20:20:15,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:20:15,429 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:20:15,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:20:15,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:20:15,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,499 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,696 INFO L137 Inliner]: procedures = 177, calls = 1597, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3739 [2021-11-25 20:20:15,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:20:15,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:20:15,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:20:15,699 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:20:15,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,989 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:20:15,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:20:15,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:20:15,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:20:15,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (1/1) ... [2021-11-25 20:20:15,999 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:20:16,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:20:16,027 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:20:16,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:20:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-25 20:20:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-25 20:20:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-11-25 20:20:16,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-11-25 20:20:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-11-25 20:20:16,083 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-11-25 20:20:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2021-11-25 20:20:16,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2021-11-25 20:20:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-25 20:20:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-25 20:20:16,084 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-25 20:20:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-11-25 20:20:16,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2021-11-25 20:20:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-25 20:20:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-25 20:20:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2021-11-25 20:20:16,085 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2021-11-25 20:20:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:20:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2021-11-25 20:20:16,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2021-11-25 20:20:16,085 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-25 20:20:16,086 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-25 20:20:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-11-25 20:20:16,086 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-11-25 20:20:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-25 20:20:16,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-25 20:20:16,086 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-25 20:20:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-25 20:20:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-25 20:20:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-25 20:20:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-25 20:20:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-25 20:20:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-11-25 20:20:16,088 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-11-25 20:20:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-25 20:20:16,088 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-25 20:20:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2021-11-25 20:20:16,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2021-11-25 20:20:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-25 20:20:16,089 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-25 20:20:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2021-11-25 20:20:16,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2021-11-25 20:20:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:20:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-25 20:20:16,089 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-25 20:20:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2021-11-25 20:20:16,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2021-11-25 20:20:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-25 20:20:16,090 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-25 20:20:16,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2021-11-25 20:20:16,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2021-11-25 20:20:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2021-11-25 20:20:16,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2021-11-25 20:20:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2021-11-25 20:20:16,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2021-11-25 20:20:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2021-11-25 20:20:16,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2021-11-25 20:20:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2021-11-25 20:20:16,092 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2021-11-25 20:20:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:20:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-25 20:20:16,092 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-25 20:20:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2021-11-25 20:20:16,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2021-11-25 20:20:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:20:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:20:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:20:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-25 20:20:16,093 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-25 20:20:16,094 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-25 20:20:16,094 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-25 20:20:16,094 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:20:16,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-25 20:20:16,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:20:16,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-25 20:20:16,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-25 20:20:16,095 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-25 20:20:16,095 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-25 20:20:16,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2021-11-25 20:20:16,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2021-11-25 20:20:16,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:20:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-25 20:20:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2021-11-25 20:20:16,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2021-11-25 20:20:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-25 20:20:16,096 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-25 20:20:16,096 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2021-11-25 20:20:16,097 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2021-11-25 20:20:16,097 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-25 20:20:16,097 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-25 20:20:16,097 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-25 20:20:16,097 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-25 20:20:16,097 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-25 20:20:16,098 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-25 20:20:16,098 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-11-25 20:20:16,098 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-11-25 20:20:16,098 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2021-11-25 20:20:16,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2021-11-25 20:20:16,098 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-11-25 20:20:16,098 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-11-25 20:20:16,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:20:16,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-11-25 20:20:16,099 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2021-11-25 20:20:16,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2021-11-25 20:20:16,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-25 20:20:16,099 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-25 20:20:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2021-11-25 20:20:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2021-11-25 20:20:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2021-11-25 20:20:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2021-11-25 20:20:16,100 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2021-11-25 20:20:16,100 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2021-11-25 20:20:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:20:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-25 20:20:16,101 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-25 20:20:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2021-11-25 20:20:16,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2021-11-25 20:20:16,101 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-25 20:20:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-25 20:20:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2021-11-25 20:20:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2021-11-25 20:20:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-25 20:20:16,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:20:16,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:20:16,792 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:20:16,795 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:20:16,954 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 20:20:17,073 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2021-11-25 20:20:17,073 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2021-11-25 20:20:17,345 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 20:20:18,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##203: assume false; [2021-11-25 20:20:18,340 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##204: assume !false; [2021-11-25 20:20:18,645 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2021-11-25 20:20:18,652 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 20:20:18,654 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 20:20:21,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2021-11-25 20:20:21,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2021-11-25 20:20:21,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2021-11-25 20:20:21,159 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2021-11-25 20:20:21,160 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2021-11-25 20:20:21,624 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-25 20:20:22,790 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2021-11-25 20:20:22,791 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2021-11-25 20:20:22,838 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:20:23,622 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:20:23,622 INFO L301 CfgBuilder]: Removed 38 assume(true) statements. [2021-11-25 20:20:23,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:20:23 BoogieIcfgContainer [2021-11-25 20:20:23,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:20:23,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:20:23,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:20:23,631 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:20:23,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:20:12" (1/3) ... [2021-11-25 20:20:23,632 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687e77b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:20:23, skipping insertion in model container [2021-11-25 20:20:23,632 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:20:15" (2/3) ... [2021-11-25 20:20:23,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@687e77b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:20:23, skipping insertion in model container [2021-11-25 20:20:23,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:20:23" (3/3) ... [2021-11-25 20:20:23,634 INFO L111 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2021-11-25 20:20:23,639 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:20:23,640 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 20:20:23,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:20:23,706 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 20:20:23,707 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 20:20:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 733 states, 479 states have (on average 1.4029227557411275) internal successors, (672), 503 states have internal predecessors, (672), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) [2021-11-25 20:20:23,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 20:20:23,753 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:23,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:23,755 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:23,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:23,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1276604776, now seen corresponding path program 1 times [2021-11-25 20:20:23,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:23,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777077947] [2021-11-25 20:20:23,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:23,772 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:24,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:20:24,431 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:24,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777077947] [2021-11-25 20:20:24,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777077947] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:24,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:24,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:20:24,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152868484] [2021-11-25 20:20:24,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:24,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:20:24,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:24,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:20:24,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:24,470 INFO L87 Difference]: Start difference. First operand has 733 states, 479 states have (on average 1.4029227557411275) internal successors, (672), 503 states have internal predecessors, (672), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:20:26,739 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:29,866 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:31,296 INFO L93 Difference]: Finished difference Result 2126 states and 3201 transitions. [2021-11-25 20:20:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:20:31,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-11-25 20:20:31,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:31,330 INFO L225 Difference]: With dead ends: 2126 [2021-11-25 20:20:31,330 INFO L226 Difference]: Without dead ends: 1387 [2021-11-25 20:20:31,344 INFO L932 BasicCegarLoop]: 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 [2021-11-25 20:20:31,347 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 930 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 68 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1985 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:31,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 1985 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 286 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2021-11-25 20:20:31,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2021-11-25 20:20:31,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1382. [2021-11-25 20:20:31,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 907 states have (on average 1.308710033076075) internal successors, (1187), 937 states have internal predecessors, (1187), 372 states have call successors, (372), 104 states have call predecessors, (372), 102 states have return successors, (380), 353 states have call predecessors, (380), 368 states have call successors, (380) [2021-11-25 20:20:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1939 transitions. [2021-11-25 20:20:31,521 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1939 transitions. Word has length 10 [2021-11-25 20:20:31,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:31,521 INFO L470 AbstractCegarLoop]: Abstraction has 1382 states and 1939 transitions. [2021-11-25 20:20:31,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:20:31,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1939 transitions. [2021-11-25 20:20:31,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 20:20:31,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:31,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:31,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 20:20:31,523 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:31,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:31,524 INFO L85 PathProgramCache]: Analyzing trace with hash -920422069, now seen corresponding path program 1 times [2021-11-25 20:20:31,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:31,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546838702] [2021-11-25 20:20:31,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:31,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:20:31,898 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:31,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546838702] [2021-11-25 20:20:31,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546838702] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:31,902 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:31,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:20:31,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121994694] [2021-11-25 20:20:31,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:31,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:20:31,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:31,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:20:31,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:20:31,906 INFO L87 Difference]: Start difference. First operand 1382 states and 1939 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:20:34,117 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:37,880 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:39,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:39,193 INFO L93 Difference]: Finished difference Result 3432 states and 4868 transitions. [2021-11-25 20:20:39,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:20:39,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-25 20:20:39,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:39,217 INFO L225 Difference]: With dead ends: 3432 [2021-11-25 20:20:39,217 INFO L226 Difference]: Without dead ends: 2050 [2021-11-25 20:20:39,227 INFO L932 BasicCegarLoop]: 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 [2021-11-25 20:20:39,229 INFO L933 BasicCegarLoop]: 1084 mSDtfsCounter, 935 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:39,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [935 Valid, 1959 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 284 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 20:20:39,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2021-11-25 20:20:39,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2043. [2021-11-25 20:20:39,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1342 states have (on average 1.3070044709388973) internal successors, (1754), 1384 states have internal predecessors, (1754), 548 states have call successors, (548), 154 states have call predecessors, (548), 152 states have return successors, (580), 522 states have call predecessors, (580), 544 states have call successors, (580) [2021-11-25 20:20:39,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2882 transitions. [2021-11-25 20:20:39,349 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2882 transitions. Word has length 11 [2021-11-25 20:20:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:39,350 INFO L470 AbstractCegarLoop]: Abstraction has 2043 states and 2882 transitions. [2021-11-25 20:20:39,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-25 20:20:39,350 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2882 transitions. [2021-11-25 20:20:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-25 20:20:39,353 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:39,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:20:39,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 20:20:39,354 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:39,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:39,354 INFO L85 PathProgramCache]: Analyzing trace with hash -805879540, now seen corresponding path program 1 times [2021-11-25 20:20:39,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:39,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544698040] [2021-11-25 20:20:39,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:39,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:39,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:20:39,628 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:39,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544698040] [2021-11-25 20:20:39,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544698040] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:39,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:39,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:20:39,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800667628] [2021-11-25 20:20:39,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:39,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:20:39,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:39,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:20:39,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:39,631 INFO L87 Difference]: Start difference. First operand 2043 states and 2882 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:20:42,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:44,142 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:45,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:47,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:47,210 INFO L93 Difference]: Finished difference Result 4161 states and 5886 transitions. [2021-11-25 20:20:47,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:20:47,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2021-11-25 20:20:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:47,232 INFO L225 Difference]: With dead ends: 4161 [2021-11-25 20:20:47,232 INFO L226 Difference]: Without dead ends: 2122 [2021-11-25 20:20:47,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:20:47,249 INFO L933 BasicCegarLoop]: 877 mSDtfsCounter, 54 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:47,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 2603 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 460 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2021-11-25 20:20:47,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2021-11-25 20:20:47,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2090. [2021-11-25 20:20:47,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 1389 states have (on average 1.312455003599712) internal successors, (1823), 1431 states have internal predecessors, (1823), 548 states have call successors, (548), 154 states have call predecessors, (548), 152 states have return successors, (580), 522 states have call predecessors, (580), 544 states have call successors, (580) [2021-11-25 20:20:47,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2951 transitions. [2021-11-25 20:20:47,381 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2951 transitions. Word has length 40 [2021-11-25 20:20:47,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:47,381 INFO L470 AbstractCegarLoop]: Abstraction has 2090 states and 2951 transitions. [2021-11-25 20:20:47,382 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-25 20:20:47,382 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2951 transitions. [2021-11-25 20:20:47,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 20:20:47,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:47,394 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-25 20:20:47,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-25 20:20:47,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:47,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:47,395 INFO L85 PathProgramCache]: Analyzing trace with hash 599544004, now seen corresponding path program 1 times [2021-11-25 20:20:47,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:47,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101123887] [2021-11-25 20:20:47,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:47,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:47,780 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-25 20:20:47,780 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:47,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101123887] [2021-11-25 20:20:47,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101123887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:47,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:47,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:20:47,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450556206] [2021-11-25 20:20:47,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:47,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:20:47,783 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:47,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:20:47,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:47,784 INFO L87 Difference]: Start difference. First operand 2090 states and 2951 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 20:20:50,817 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:52,674 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:54,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:58,485 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:20:58,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:20:58,811 INFO L93 Difference]: Finished difference Result 4201 states and 5928 transitions. [2021-11-25 20:20:58,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:20:58,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2021-11-25 20:20:58,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:20:58,829 INFO L225 Difference]: With dead ends: 4201 [2021-11-25 20:20:58,830 INFO L226 Difference]: Without dead ends: 2115 [2021-11-25 20:20:58,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:58,845 INFO L933 BasicCegarLoop]: 872 mSDtfsCounter, 10 mSDsluCounter, 3018 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3481 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:20:58,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 3481 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 559 Invalid, 1 Unknown, 0 Unchecked, 10.9s Time] [2021-11-25 20:20:58,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2021-11-25 20:20:58,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2100. [2021-11-25 20:20:58,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1396 states have (on average 1.310888252148997) internal successors, (1830), 1439 states have internal predecessors, (1830), 548 states have call successors, (548), 154 states have call predecessors, (548), 155 states have return successors, (585), 524 states have call predecessors, (585), 544 states have call successors, (585) [2021-11-25 20:20:58,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2963 transitions. [2021-11-25 20:20:58,954 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2963 transitions. Word has length 64 [2021-11-25 20:20:58,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:20:58,955 INFO L470 AbstractCegarLoop]: Abstraction has 2100 states and 2963 transitions. [2021-11-25 20:20:58,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-25 20:20:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2963 transitions. [2021-11-25 20:20:58,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-25 20:20:58,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:20:58,958 INFO L514 BasicCegarLoop]: trace histogram [5, 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] [2021-11-25 20:20:58,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:20:58,959 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:20:58,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:20:58,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1656071183, now seen corresponding path program 1 times [2021-11-25 20:20:58,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:20:58,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842069535] [2021-11-25 20:20:58,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:20:58,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:20:59,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:20:59,359 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:20:59,359 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:20:59,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842069535] [2021-11-25 20:20:59,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842069535] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:20:59,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:20:59,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 20:20:59,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917276708] [2021-11-25 20:20:59,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:20:59,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-25 20:20:59,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:20:59,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-25 20:20:59,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:20:59,363 INFO L87 Difference]: Start difference. First operand 2100 states and 2963 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:21:02,101 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:03,182 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:07,121 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:09,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:10,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:10,276 INFO L93 Difference]: Finished difference Result 2790 states and 3912 transitions. [2021-11-25 20:21:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 20:21:10,279 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2021-11-25 20:21:10,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:10,303 INFO L225 Difference]: With dead ends: 2790 [2021-11-25 20:21:10,303 INFO L226 Difference]: Without dead ends: 2775 [2021-11-25 20:21:10,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-25 20:21:10,306 INFO L933 BasicCegarLoop]: 1081 mSDtfsCounter, 947 mSDsluCounter, 3425 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:10,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [949 Valid, 4087 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 571 Invalid, 2 Unknown, 0 Unchecked, 10.8s Time] [2021-11-25 20:21:10,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2021-11-25 20:21:10,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2756. [2021-11-25 20:21:10,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 1827 states have (on average 1.3081554460864806) internal successors, (2390), 1882 states have internal predecessors, (2390), 723 states have call successors, (723), 204 states have call predecessors, (723), 205 states have return successors, (763), 693 states have call predecessors, (763), 719 states have call successors, (763) [2021-11-25 20:21:10,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3876 transitions. [2021-11-25 20:21:10,456 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3876 transitions. Word has length 92 [2021-11-25 20:21:10,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:10,457 INFO L470 AbstractCegarLoop]: Abstraction has 2756 states and 3876 transitions. [2021-11-25 20:21:10,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2021-11-25 20:21:10,457 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3876 transitions. [2021-11-25 20:21:10,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-11-25 20:21:10,459 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:10,459 INFO L514 BasicCegarLoop]: trace histogram [5, 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] [2021-11-25 20:21:10,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-25 20:21:10,460 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:21:10,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:10,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1886125916, now seen corresponding path program 1 times [2021-11-25 20:21:10,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:10,461 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014981198] [2021-11-25 20:21:10,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:10,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:11,498 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:21:11,498 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:11,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014981198] [2021-11-25 20:21:11,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014981198] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:11,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:21:11,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:21:11,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816281608] [2021-11-25 20:21:11,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:11,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:21:11,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:11,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:21:11,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:21:11,501 INFO L87 Difference]: Start difference. First operand 2756 states and 3876 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:21:14,263 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:17,042 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:17,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:17,260 INFO L93 Difference]: Finished difference Result 5510 states and 7839 transitions. [2021-11-25 20:21:17,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:21:17,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2021-11-25 20:21:17,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:17,285 INFO L225 Difference]: With dead ends: 5510 [2021-11-25 20:21:17,285 INFO L226 Difference]: Without dead ends: 2760 [2021-11-25 20:21:17,306 INFO L932 BasicCegarLoop]: 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 [2021-11-25 20:21:17,307 INFO L933 BasicCegarLoop]: 870 mSDtfsCounter, 0 mSDsluCounter, 1005 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:17,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1739 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2021-11-25 20:21:17,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2021-11-25 20:21:17,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2760. [2021-11-25 20:21:17,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 1831 states have (on average 1.3074822501365375) internal successors, (2394), 1886 states have internal predecessors, (2394), 723 states have call successors, (723), 204 states have call predecessors, (723), 205 states have return successors, (763), 693 states have call predecessors, (763), 719 states have call successors, (763) [2021-11-25 20:21:17,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3880 transitions. [2021-11-25 20:21:17,492 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3880 transitions. Word has length 100 [2021-11-25 20:21:17,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:17,495 INFO L470 AbstractCegarLoop]: Abstraction has 2760 states and 3880 transitions. [2021-11-25 20:21:17,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2021-11-25 20:21:17,495 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3880 transitions. [2021-11-25 20:21:17,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-25 20:21:17,501 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:17,501 INFO L514 BasicCegarLoop]: trace histogram [5, 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] [2021-11-25 20:21:17,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-25 20:21:17,502 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:21:17,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:17,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1857036143, now seen corresponding path program 1 times [2021-11-25 20:21:17,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:17,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678822605] [2021-11-25 20:21:17,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:17,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:17,795 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:21:17,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:17,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678822605] [2021-11-25 20:21:17,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678822605] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:21:17,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454559673] [2021-11-25 20:21:17,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:17,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:21:17,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:21:17,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:21:17,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:21:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:18,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 2890 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 20:21:18,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:21:18,951 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:21:18,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:21:18,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454559673] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:18,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-25 20:21:18,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2021-11-25 20:21:18,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647242228] [2021-11-25 20:21:18,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:18,953 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:21:18,953 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:18,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:21:18,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:21:18,954 INFO L87 Difference]: Start difference. First operand 2760 states and 3880 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-25 20:21:21,058 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:23,076 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:25,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:26,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:21:26,169 INFO L93 Difference]: Finished difference Result 5514 states and 7754 transitions. [2021-11-25 20:21:26,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:21:26,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 95 [2021-11-25 20:21:26,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:21:26,193 INFO L225 Difference]: With dead ends: 5514 [2021-11-25 20:21:26,194 INFO L226 Difference]: Without dead ends: 2736 [2021-11-25 20:21:26,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 20:21:26,211 INFO L933 BasicCegarLoop]: 870 mSDtfsCounter, 25 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:21:26,211 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 1729 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 291 Invalid, 2 Unknown, 0 Unchecked, 7.1s Time] [2021-11-25 20:21:26,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2021-11-25 20:21:26,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2021-11-25 20:21:26,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 1807 states have (on average 1.2993912562257885) internal successors, (2348), 1862 states have internal predecessors, (2348), 723 states have call successors, (723), 204 states have call predecessors, (723), 205 states have return successors, (763), 693 states have call predecessors, (763), 719 states have call successors, (763) [2021-11-25 20:21:26,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3834 transitions. [2021-11-25 20:21:26,364 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3834 transitions. Word has length 95 [2021-11-25 20:21:26,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:21:26,364 INFO L470 AbstractCegarLoop]: Abstraction has 2736 states and 3834 transitions. [2021-11-25 20:21:26,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-25 20:21:26,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3834 transitions. [2021-11-25 20:21:26,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-25 20:21:26,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:21:26,371 INFO L514 BasicCegarLoop]: trace histogram [5, 3, 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] [2021-11-25 20:21:26,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:21:26,597 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 20:21:26,597 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:21:26,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:21:26,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1527537893, now seen corresponding path program 1 times [2021-11-25 20:21:26,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:21:26,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86998903] [2021-11-25 20:21:26,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:21:26,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:21:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:21:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-25 20:21:27,296 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:21:27,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86998903] [2021-11-25 20:21:27,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86998903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:21:27,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:21:27,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-11-25 20:21:27,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768514834] [2021-11-25 20:21:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:21:27,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-25 20:21:27,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:21:27,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-25 20:21:27,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-11-25 20:21:27,298 INFO L87 Difference]: Start difference. First operand 2736 states and 3834 transitions. Second operand has 11 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 6 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-25 20:21:31,760 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:34,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:36,631 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:37,864 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:39,884 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:41,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:43,303 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:21:52,725 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:04,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:06,449 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:08,474 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:11,628 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:13,298 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-25 20:22:16,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:22:16,337 INFO L93 Difference]: Finished difference Result 4592 states and 6651 transitions. [2021-11-25 20:22:16,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:22:16,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 6 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 97 [2021-11-25 20:22:16,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:22:16,385 INFO L225 Difference]: With dead ends: 4592 [2021-11-25 20:22:16,385 INFO L226 Difference]: Without dead ends: 4587 [2021-11-25 20:22:16,387 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=206, Unknown=0, NotChecked=0, Total=272 [2021-11-25 20:22:16,388 INFO L933 BasicCegarLoop]: 2273 mSDtfsCounter, 5957 mSDsluCounter, 8011 mSDsCounter, 0 mSdLazyCounter, 10019 mSolverCounterSat, 3586 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6202 SdHoareTripleChecker+Valid, 8836 SdHoareTripleChecker+Invalid, 13611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3586 IncrementalHoareTripleChecker+Valid, 10019 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.5s IncrementalHoareTripleChecker+Time [2021-11-25 20:22:16,388 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6202 Valid, 8836 Invalid, 13611 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3586 Valid, 10019 Invalid, 6 Unknown, 0 Unchecked, 48.5s Time] [2021-11-25 20:22:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4587 states. [2021-11-25 20:22:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4587 to 4544. [2021-11-25 20:22:16,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4544 states, 3030 states have (on average 1.3046204620462045) internal successors, (3953), 3112 states have internal predecessors, (3953), 1215 states have call successors, (1215), 254 states have call predecessors, (1215), 298 states have return successors, (1413), 1207 states have call predecessors, (1413), 1211 states have call successors, (1413) [2021-11-25 20:22:16,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4544 states to 4544 states and 6581 transitions. [2021-11-25 20:22:16,631 INFO L78 Accepts]: Start accepts. Automaton has 4544 states and 6581 transitions. Word has length 97 [2021-11-25 20:22:16,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:22:16,631 INFO L470 AbstractCegarLoop]: Abstraction has 4544 states and 6581 transitions. [2021-11-25 20:22:16,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 6 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2021-11-25 20:22:16,632 INFO L276 IsEmpty]: Start isEmpty. Operand 4544 states and 6581 transitions. [2021-11-25 20:22:16,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-11-25 20:22:16,634 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:22:16,634 INFO L514 BasicCegarLoop]: trace histogram [5, 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] [2021-11-25 20:22:16,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-25 20:22:16,635 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 20:22:16,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:22:16,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1964941493, now seen corresponding path program 1 times [2021-11-25 20:22:16,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:22:16,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753685286] [2021-11-25 20:22:16,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:16,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:22:17,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:17,930 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:22:17,931 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:22:17,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753685286] [2021-11-25 20:22:17,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753685286] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-25 20:22:17,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776027816] [2021-11-25 20:22:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:22:17,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:22:17,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:22:17,932 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:22:17,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9f950cd-dca5-4429-96d3-c7a545d9ea49/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:22:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:22:19,107 INFO L263 TraceCheckSpWp]: Trace formula consists of 3029 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:22:19,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:22:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-11-25 20:22:19,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:22:19,549 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 20:22:19,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776027816] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:22:19,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2113532119] [2021-11-25 20:22:19,575 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2021-11-25 20:22:19,575 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:22:19,580 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:22:19,585 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:22:19,586 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:22:22,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 373 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 116 [2021-11-25 20:22:22,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 747 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 176 [2021-11-25 20:22:23,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1185 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 211 [2021-11-25 20:22:23,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1389 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 241 [2021-11-25 20:22:23,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 121 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2021-11-25 20:22:24,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1185 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 211 [2021-11-25 20:22:24,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 396 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 121 [2021-11-25 20:22:24,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 291 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 96 [2021-11-25 20:22:25,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1890 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2021-11-25 20:22:25,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 800 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2021-11-25 20:22:25,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1996 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 296 [2021-11-25 20:23:32,989 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_init with input of size 2690 for LOIs [2021-11-25 20:23:35,666 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_probe with input of size 2743 for LOIs [2021-11-25 20:23:42,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-25 20:23:42,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-25 20:24:47,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 165 select indices, 165 select index equivalence classes, 13530 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 13203 treesize of output 12543 [2021-11-25 20:24:49,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 166 select indices, 166 select index equivalence classes, 13695 disjoint index pairs (out of 13695 index pairs), introduced 166 new quantified variables, introduced 0 case distinctions, treesize of input 12543 treesize of output 11879 [2021-11-25 20:25:40,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 166 select indices, 166 select index equivalence classes, 13695 disjoint index pairs (out of 13695 index pairs), introduced 166 new quantified variables, introduced 0 case distinctions, treesize of input 13203 treesize of output 12539 [2021-11-25 20:25:42,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 165 select indices, 165 select index equivalence classes, 13530 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 12539 treesize of output 11879 [2021-11-25 20:26:18,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:18,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:18,386 INFO L354 Elim1Store]: treesize reduction 31, result has 38.0 percent of original size [2021-11-25 20:26:18,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 38 [2021-11-25 20:26:19,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:19,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:19,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:20,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:20,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:20,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:20,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:20,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:20,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:21,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-25 20:26:21,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:21,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:21,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:21,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2021-11-25 20:26:21,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:21,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:26:22,835 INFO L354 Elim1Store]: treesize reduction 42, result has 54.8 percent of original size [2021-11-25 20:26:22,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 765 treesize of output 775 [2021-11-25 20:26:23,060 INFO L354 Elim1Store]: treesize reduction 42, result has 54.8 percent of original size [2021-11-25 20:26:23,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 729 treesize of output 739 [2021-11-25 20:26:23,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:26:23,301 INFO L354 Elim1Store]: treesize reduction 80, result has 38.9 percent of original size [2021-11-25 20:26:23,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 699 treesize of output 707 [2021-11-25 20:28:49,491 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-25 20:28:49,491 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 30 [2021-11-25 20:28:49,575 INFO L354 Elim1Store]: treesize reduction 23, result has 45.2 percent of original size [2021-11-25 20:28:49,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 32 [2021-11-25 20:28:49,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-25 20:28:50,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:28:50,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 20:28:50,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 20:29:12,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 166 select indices, 166 select index equivalence classes, 13695 disjoint index pairs (out of 13695 index pairs), introduced 166 new quantified variables, introduced 0 case distinctions, treesize of input 13203 treesize of output 12539 [2021-11-25 20:29:14,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 165 select indices, 165 select index equivalence classes, 13530 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 12539 treesize of output 11879 [2021-11-25 20:29:37,114 INFO L197 IcfgInterpreter]: Interpreting procedure __create_pipe with input of size 272 for LOIs [2021-11-25 20:29:37,193 INFO L197 IcfgInterpreter]: Interpreting procedure __mutex_init with input of size 300 for LOIs [2021-11-25 20:29:37,418 INFO L197 IcfgInterpreter]: Interpreting procedure kzalloc with input of size 2739 for LOIs [2021-11-25 20:30:17,662 INFO L197 IcfgInterpreter]: Interpreting procedure kmalloc with input of size 2736 for LOIs [2021-11-25 20:30:54,792 INFO L197 IcfgInterpreter]: Interpreting procedure usb_alloc_urb with input of size 230 for LOIs [2021-11-25 20:30:55,647 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_undefined_pointer with input of size 222 for LOIs [2021-11-25 20:30:58,706 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_malloc with input of size 2844 for LOIs [2021-11-25 20:31:44,992 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_free_iso_urbs with input of size 219 for LOIs [2021-11-25 20:31:45,222 INFO L197 IcfgInterpreter]: Interpreting procedure usb_free_urb with input of size 234 for LOIs [2021-11-25 20:31:45,848 INFO L197 IcfgInterpreter]: Interpreting procedure ldv_blast_assert with input of size 239 for LOIs [2021-11-25 20:31:45,969 INFO L197 IcfgInterpreter]: Interpreting procedure usb_set_intfdata with input of size 2152 for LOIs [2021-11-25 20:31:51,348 INFO L197 IcfgInterpreter]: Interpreting procedure get_dma_ops with input of size 178 for LOIs [2021-11-25 20:31:51,381 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:32:40,140 WARN L227 SmtUtils]: Spent 47.64s on a formula simplification that was a NOOP. DAG size: 2697 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)