./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-02 21:05:17,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 21:05:17,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 21:05:17,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 21:05:17,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 21:05:17,664 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 21:05:17,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 21:05:17,668 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 21:05:17,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 21:05:17,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 21:05:17,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 21:05:17,673 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 21:05:17,673 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 21:05:17,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 21:05:17,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 21:05:17,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 21:05:17,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 21:05:17,679 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 21:05:17,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 21:05:17,683 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 21:05:17,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 21:05:17,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 21:05:17,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 21:05:17,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 21:05:17,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 21:05:17,706 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 21:05:17,707 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 21:05:17,708 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 21:05:17,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 21:05:17,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 21:05:17,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 21:05:17,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 21:05:17,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 21:05:17,714 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 21:05:17,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 21:05:17,716 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 21:05:17,717 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 21:05:17,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 21:05:17,718 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 21:05:17,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 21:05:17,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 21:05:17,721 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 21:05:17,757 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 21:05:17,759 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 21:05:17,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 21:05:17,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 21:05:17,761 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 21:05:17,761 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 21:05:17,762 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 21:05:17,762 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 21:05:17,763 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 21:05:17,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 21:05:17,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 21:05:17,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 21:05:17,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 21:05:17,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 21:05:17,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 21:05:17,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 21:05:17,765 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 21:05:17,765 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 21:05:17,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 21:05:17,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 21:05:17,766 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 21:05:17,766 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:05:17,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 21:05:17,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 21:05:17,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 21:05:17,767 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 21:05:17,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 21:05:17,768 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 21:05:17,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 21:05:17,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 21:05:17,768 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f25e8d9a29012500b38126aa22b2b7d181aad99a845cece264158253e2ec92e3 [2022-11-02 21:05:18,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 21:05:18,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 21:05:18,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 21:05:18,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 21:05:18,103 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 21:05:18,104 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2022-11-02 21:05:18,179 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/data/f3ecc752a/d25c8d04bd5b4c9d961970fb47fac0e2/FLAG6e18c2faa [2022-11-02 21:05:19,021 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 21:05:19,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i [2022-11-02 21:05:19,063 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/data/f3ecc752a/d25c8d04bd5b4c9d961970fb47fac0e2/FLAG6e18c2faa [2022-11-02 21:05:19,499 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/data/f3ecc752a/d25c8d04bd5b4c9d961970fb47fac0e2 [2022-11-02 21:05:19,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 21:05:19,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 21:05:19,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 21:05:19,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 21:05:19,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 21:05:19,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:05:19" (1/1) ... [2022-11-02 21:05:19,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32574a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:19, skipping insertion in model container [2022-11-02 21:05:19,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 09:05:19" (1/1) ... [2022-11-02 21:05:19,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 21:05:19,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 21:05:21,014 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_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2022-11-02 21:05:21,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:05:21,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 21:05:21,627 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_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-block-loop.ko.cil.out.i[192897,192910] [2022-11-02 21:05:21,646 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 21:05:21,764 INFO L208 MainTranslator]: Completed translation [2022-11-02 21:05:21,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21 WrapperNode [2022-11-02 21:05:21,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 21:05:21,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 21:05:21,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 21:05:21,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 21:05:21,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:21,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,010 INFO L138 Inliner]: procedures = 236, calls = 1201, calls flagged for inlining = 124, calls inlined = 121, statements flattened = 3651 [2022-11-02 21:05:22,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 21:05:22,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 21:05:22,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 21:05:22,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 21:05:22,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 21:05:22,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 21:05:22,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 21:05:22,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 21:05:22,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (1/1) ... [2022-11-02 21:05:22,230 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 21:05:22,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:22,254 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 21:05:22,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 21:05:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure bio_endio [2022-11-02 21:05:22,303 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_endio [2022-11-02 21:05:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 21:05:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 21:05:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure vfs_fsync [2022-11-02 21:05:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure vfs_fsync [2022-11-02 21:05:22,304 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-11-02 21:05:22,304 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-11-02 21:05:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-02 21:05:22,305 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-02 21:05:22,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 21:05:22,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 21:05:22,306 INFO L130 BoogieDeclarations]: Found specification of procedure add_disk [2022-11-02 21:05:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure add_disk [2022-11-02 21:05:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_uevent [2022-11-02 21:05:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_uevent [2022-11-02 21:05:22,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-02 21:05:22,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-02 21:05:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_xor [2022-11-02 21:05:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_xor [2022-11-02 21:05:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure invalidate_bdev [2022-11-02 21:05:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure invalidate_bdev [2022-11-02 21:05:22,308 INFO L130 BoogieDeclarations]: Found specification of procedure __might_sleep [2022-11-02 21:05:22,308 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_sleep [2022-11-02 21:05:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-02 21:05:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-02 21:05:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure huge_encode_dev [2022-11-02 21:05:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure huge_encode_dev [2022-11-02 21:05:22,309 INFO L130 BoogieDeclarations]: Found specification of procedure lo_do_transfer [2022-11-02 21:05:22,309 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_do_transfer [2022-11-02 21:05:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure loop_sysfs_exit [2022-11-02 21:05:22,310 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_sysfs_exit [2022-11-02 21:05:22,310 INFO L130 BoogieDeclarations]: Found specification of procedure set_capacity [2022-11-02 21:05:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure set_capacity [2022-11-02 21:05:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure kthread_should_stop [2022-11-02 21:05:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure kthread_should_stop [2022-11-02 21:05:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 21:05:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 21:05:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure loop_alloc [2022-11-02 21:05:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_alloc [2022-11-02 21:05:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure loop_make_request [2022-11-02 21:05:22,374 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_make_request [2022-11-02 21:05:22,374 INFO L130 BoogieDeclarations]: Found specification of procedure __do_lo_send_write [2022-11-02 21:05:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_lo_send_write [2022-11-02 21:05:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure loop_get_status [2022-11-02 21:05:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_get_status [2022-11-02 21:05:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure loop_clr_fd [2022-11-02 21:05:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_clr_fd [2022-11-02 21:05:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 21:05:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure figure_loop_size [2022-11-02 21:05:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure figure_loop_size [2022-11-02 21:05:22,375 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl_by_bdev [2022-11-02 21:05:22,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl_by_bdev [2022-11-02 21:05:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 21:05:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-02 21:05:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-02 21:05:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 21:05:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 21:05:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-11-02 21:05:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-11-02 21:05:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-11-02 21:05:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-11-02 21:05:22,376 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2022-11-02 21:05:22,376 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2022-11-02 21:05:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-02 21:05:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-02 21:05:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_capacity [2022-11-02 21:05:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_capacity [2022-11-02 21:05:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure bio_list_empty [2022-11-02 21:05:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure bio_list_empty [2022-11-02 21:05:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 21:05:22,377 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-11-02 21:05:22,377 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-11-02 21:05:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure loop_free [2022-11-02 21:05:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_free [2022-11-02 21:05:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure transfer_none [2022-11-02 21:05:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure transfer_none [2022-11-02 21:05:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 21:05:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure bd_set_size [2022-11-02 21:05:22,378 INFO L138 BoogieDeclarations]: Found implementation of procedure bd_set_size [2022-11-02 21:05:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 21:05:22,378 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2022-11-02 21:05:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2022-11-02 21:05:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_set_gfp_mask [2022-11-02 21:05:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_set_gfp_mask [2022-11-02 21:05:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure xor_init [2022-11-02 21:05:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure xor_init [2022-11-02 21:05:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure kmap [2022-11-02 21:05:22,379 INFO L138 BoogieDeclarations]: Found implementation of procedure kmap [2022-11-02 21:05:22,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 21:05:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 21:05:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 21:05:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 21:05:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_blkdev [2022-11-02 21:05:22,380 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_blkdev [2022-11-02 21:05:22,380 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-02 21:05:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-02 21:05:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 21:05:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-02 21:05:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-02 21:05:22,381 INFO L130 BoogieDeclarations]: Found specification of procedure __kmap_atomic [2022-11-02 21:05:22,381 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmap_atomic [2022-11-02 21:05:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-02 21:05:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-02 21:05:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 21:05:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-11-02 21:05:22,382 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-11-02 21:05:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 21:05:22,382 INFO L130 BoogieDeclarations]: Found specification of procedure get_loop_size [2022-11-02 21:05:22,383 INFO L138 BoogieDeclarations]: Found implementation of procedure get_loop_size [2022-11-02 21:05:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 21:05:22,383 INFO L130 BoogieDeclarations]: Found specification of procedure blk_cleanup_queue [2022-11-02 21:05:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_cleanup_queue [2022-11-02 21:05:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure loop_set_status [2022-11-02 21:05:22,384 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_set_status [2022-11-02 21:05:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 21:05:22,384 INFO L130 BoogieDeclarations]: Found specification of procedure lo_ioctl [2022-11-02 21:05:22,385 INFO L138 BoogieDeclarations]: Found implementation of procedure lo_ioctl [2022-11-02 21:05:22,386 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-02 21:05:22,388 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-02 21:05:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-02 21:05:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-02 21:05:22,389 INFO L130 BoogieDeclarations]: Found specification of procedure loop_release_xfer [2022-11-02 21:05:22,389 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_release_xfer [2022-11-02 21:05:22,390 INFO L130 BoogieDeclarations]: Found specification of procedure _cond_resched [2022-11-02 21:05:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure _cond_resched [2022-11-02 21:05:22,391 INFO L130 BoogieDeclarations]: Found specification of procedure kunmap [2022-11-02 21:05:22,391 INFO L138 BoogieDeclarations]: Found implementation of procedure kunmap [2022-11-02 21:05:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-02 21:05:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-02 21:05:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure loop_switch [2022-11-02 21:05:22,392 INFO L138 BoogieDeclarations]: Found implementation of procedure loop_switch [2022-11-02 21:05:22,392 INFO L130 BoogieDeclarations]: Found specification of procedure mapping_gfp_mask [2022-11-02 21:05:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure mapping_gfp_mask [2022-11-02 21:05:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 21:05:22,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-02 21:05:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-11-02 21:05:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-11-02 21:05:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure __kunmap_atomic [2022-11-02 21:05:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __kunmap_atomic [2022-11-02 21:05:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 21:05:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 21:05:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 21:05:22,394 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-02 21:05:22,395 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-02 21:05:23,175 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 21:05:23,181 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 21:05:23,849 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:05:26,041 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-11-02 21:05:26,042 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-11-02 21:05:26,083 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-02 21:05:26,084 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-02 21:05:26,647 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-11-02 21:05:26,648 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-11-02 21:05:27,242 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:05:27,244 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-02 21:05:28,887 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##72: assume !false; [2022-11-02 21:05:28,887 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##71: assume false; [2022-11-02 21:05:28,887 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2022-11-02 21:05:28,888 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2022-11-02 21:05:28,960 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 21:05:28,973 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 21:05:28,973 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-02 21:05:28,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:05:28 BoogieIcfgContainer [2022-11-02 21:05:28,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 21:05:28,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 21:05:28,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 21:05:28,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 21:05:28,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 09:05:19" (1/3) ... [2022-11-02 21:05:28,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e1d6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:05:28, skipping insertion in model container [2022-11-02 21:05:28,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 09:05:21" (2/3) ... [2022-11-02 21:05:28,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10e1d6dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 09:05:28, skipping insertion in model container [2022-11-02 21:05:28,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 09:05:28" (3/3) ... [2022-11-02 21:05:28,987 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-block-loop.ko.cil.out.i [2022-11-02 21:05:29,007 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 21:05:29,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 21:05:29,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 21:05:29,117 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@48c1d93d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 21:05:29,117 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 21:05:29,127 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 810 states have (on average 1.317283950617284) internal successors, (1067), 823 states have internal predecessors, (1067), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) [2022-11-02 21:05:29,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-02 21:05:29,139 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:29,140 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:29,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:29,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:29,149 INFO L85 PathProgramCache]: Analyzing trace with hash 325416360, now seen corresponding path program 1 times [2022-11-02 21:05:29,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:29,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744863610] [2022-11-02 21:05:29,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:29,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:29,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:29,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:29,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744863610] [2022-11-02 21:05:29,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744863610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:29,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:29,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 21:05:29,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1701476] [2022-11-02 21:05:29,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:29,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 21:05:29,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:29,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 21:05:29,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:29,662 INFO L87 Difference]: Start difference. First operand has 1098 states, 810 states have (on average 1.317283950617284) internal successors, (1067), 823 states have internal predecessors, (1067), 222 states have call successors, (222), 64 states have call predecessors, (222), 64 states have return successors, (222), 221 states have call predecessors, (222), 222 states have call successors, (222) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:30,005 INFO L93 Difference]: Finished difference Result 3203 states and 4521 transitions. [2022-11-02 21:05:30,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 21:05:30,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-02 21:05:30,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:30,051 INFO L225 Difference]: With dead ends: 3203 [2022-11-02 21:05:30,052 INFO L226 Difference]: Without dead ends: 2094 [2022-11-02 21:05:30,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 21:05:30,073 INFO L413 NwaCegarLoop]: 1834 mSDtfsCounter, 1488 mSDsluCounter, 1410 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 3244 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:30,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 3244 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:05:30,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2094 states. [2022-11-02 21:05:30,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2094 to 2091. [2022-11-02 21:05:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.311443433029909) internal successors, (2017), 1558 states have internal predecessors, (2017), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2022-11-02 21:05:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2878 transitions. [2022-11-02 21:05:30,357 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2878 transitions. Word has length 11 [2022-11-02 21:05:30,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:30,358 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 2878 transitions. [2022-11-02 21:05:30,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-02 21:05:30,358 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2878 transitions. [2022-11-02 21:05:30,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-02 21:05:30,366 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:30,366 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:30,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 21:05:30,367 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:30,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:30,368 INFO L85 PathProgramCache]: Analyzing trace with hash 879957809, now seen corresponding path program 1 times [2022-11-02 21:05:30,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:30,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564139582] [2022-11-02 21:05:30,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:30,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:30,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:30,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 21:05:30,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:30,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-02 21:05:30,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:30,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:30,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:30,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564139582] [2022-11-02 21:05:30,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564139582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:30,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:30,695 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:30,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013973927] [2022-11-02 21:05:30,696 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:30,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:30,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:30,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:30,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:30,700 INFO L87 Difference]: Start difference. First operand 2091 states and 2878 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:33,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:33,169 INFO L93 Difference]: Finished difference Result 4515 states and 6297 transitions. [2022-11-02 21:05:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:33,174 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 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 53 [2022-11-02 21:05:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:33,189 INFO L225 Difference]: With dead ends: 4515 [2022-11-02 21:05:33,190 INFO L226 Difference]: Without dead ends: 2505 [2022-11-02 21:05:33,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:33,201 INFO L413 NwaCegarLoop]: 1426 mSDtfsCounter, 518 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 4181 SdHoareTripleChecker+Invalid, 1621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:33,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 4181 Invalid, 1621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-02 21:05:33,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2022-11-02 21:05:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2091. [2022-11-02 21:05:33,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.3101430429128738) internal successors, (2015), 1558 states have internal predecessors, (2015), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2022-11-02 21:05:33,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2876 transitions. [2022-11-02 21:05:33,334 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2876 transitions. Word has length 53 [2022-11-02 21:05:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:33,335 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 2876 transitions. [2022-11-02 21:05:33,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2876 transitions. [2022-11-02 21:05:33,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-02 21:05:33,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:33,338 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:33,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-02 21:05:33,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:33,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:33,339 INFO L85 PathProgramCache]: Analyzing trace with hash -12155950, now seen corresponding path program 1 times [2022-11-02 21:05:33,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:33,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657837351] [2022-11-02 21:05:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:33,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:33,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-02 21:05:33,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:33,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-02 21:05:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:33,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:33,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:33,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:33,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657837351] [2022-11-02 21:05:33,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657837351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:33,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:33,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 21:05:33,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820760422] [2022-11-02 21:05:33,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:33,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 21:05:33,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:33,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 21:05:33,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 21:05:33,477 INFO L87 Difference]: Start difference. First operand 2091 states and 2876 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:35,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:35,268 INFO L93 Difference]: Finished difference Result 4588 states and 6382 transitions. [2022-11-02 21:05:35,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-02 21:05:35,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 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 58 [2022-11-02 21:05:35,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:35,283 INFO L225 Difference]: With dead ends: 4588 [2022-11-02 21:05:35,284 INFO L226 Difference]: Without dead ends: 2505 [2022-11-02 21:05:35,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:35,293 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 1951 mSDsluCounter, 691 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2104 SdHoareTripleChecker+Valid, 2109 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:35,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2104 Valid, 2109 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-11-02 21:05:35,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2505 states. [2022-11-02 21:05:35,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2505 to 2091. [2022-11-02 21:05:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2091 states, 1538 states have (on average 1.3088426527958388) internal successors, (2013), 1558 states have internal predecessors, (2013), 429 states have call successors, (429), 124 states have call predecessors, (429), 123 states have return successors, (432), 425 states have call predecessors, (432), 427 states have call successors, (432) [2022-11-02 21:05:35,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2091 states to 2091 states and 2874 transitions. [2022-11-02 21:05:35,418 INFO L78 Accepts]: Start accepts. Automaton has 2091 states and 2874 transitions. Word has length 58 [2022-11-02 21:05:35,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:35,419 INFO L495 AbstractCegarLoop]: Abstraction has 2091 states and 2874 transitions. [2022-11-02 21:05:35,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:35,419 INFO L276 IsEmpty]: Start isEmpty. Operand 2091 states and 2874 transitions. [2022-11-02 21:05:35,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-02 21:05:35,422 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:35,422 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:35,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-02 21:05:35,423 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:35,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:35,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1269426878, now seen corresponding path program 1 times [2022-11-02 21:05:35,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:35,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132939947] [2022-11-02 21:05:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:35,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:35,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:35,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-02 21:05:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-02 21:05:35,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:35,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:35,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132939947] [2022-11-02 21:05:35,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132939947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:35,619 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:35,619 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:35,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767687950] [2022-11-02 21:05:35,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:35,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:35,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:35,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:35,621 INFO L87 Difference]: Start difference. First operand 2091 states and 2874 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:38,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:38,056 INFO L93 Difference]: Finished difference Result 4515 states and 6292 transitions. [2022-11-02 21:05:38,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:38,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 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 51 [2022-11-02 21:05:38,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:38,071 INFO L225 Difference]: With dead ends: 4515 [2022-11-02 21:05:38,071 INFO L226 Difference]: Without dead ends: 2488 [2022-11-02 21:05:38,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:05:38,081 INFO L413 NwaCegarLoop]: 1422 mSDtfsCounter, 518 mSDsluCounter, 2745 mSDsCounter, 0 mSdLazyCounter, 1343 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 610 SdHoareTripleChecker+Valid, 4167 SdHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:38,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [610 Valid, 4167 Invalid, 1619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1343 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-02 21:05:38,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2022-11-02 21:05:38,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2074. [2022-11-02 21:05:38,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2074 states, 1527 states have (on average 1.3091028159790439) internal successors, (1999), 1547 states have internal predecessors, (1999), 425 states have call successors, (425), 122 states have call predecessors, (425), 121 states have return successors, (428), 421 states have call predecessors, (428), 423 states have call successors, (428) [2022-11-02 21:05:38,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2074 states to 2074 states and 2852 transitions. [2022-11-02 21:05:38,264 INFO L78 Accepts]: Start accepts. Automaton has 2074 states and 2852 transitions. Word has length 51 [2022-11-02 21:05:38,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:38,264 INFO L495 AbstractCegarLoop]: Abstraction has 2074 states and 2852 transitions. [2022-11-02 21:05:38,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:38,265 INFO L276 IsEmpty]: Start isEmpty. Operand 2074 states and 2852 transitions. [2022-11-02 21:05:38,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-02 21:05:38,267 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:38,267 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:38,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-02 21:05:38,269 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:38,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:38,270 INFO L85 PathProgramCache]: Analyzing trace with hash 481179932, now seen corresponding path program 1 times [2022-11-02 21:05:38,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:38,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981404818] [2022-11-02 21:05:38,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:38,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:05:38,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:38,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-02 21:05:38,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:38,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:38,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:38,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981404818] [2022-11-02 21:05:38,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981404818] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:05:38,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:05:38,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:05:38,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864497665] [2022-11-02 21:05:38,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:05:38,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:05:38,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:38,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:05:38,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:38,538 INFO L87 Difference]: Start difference. First operand 2074 states and 2852 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:40,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:40,585 INFO L93 Difference]: Finished difference Result 4514 states and 6290 transitions. [2022-11-02 21:05:40,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:05:40,586 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 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 56 [2022-11-02 21:05:40,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:40,603 INFO L225 Difference]: With dead ends: 4514 [2022-11-02 21:05:40,603 INFO L226 Difference]: Without dead ends: 2494 [2022-11-02 21:05:40,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:05:40,612 INFO L413 NwaCegarLoop]: 1411 mSDtfsCounter, 691 mSDsluCounter, 1689 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 278 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 278 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:40,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 3100 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [278 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-11-02 21:05:40,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2494 states. [2022-11-02 21:05:40,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2494 to 2075. [2022-11-02 21:05:40,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2075 states, 1528 states have (on average 1.3089005235602094) internal successors, (2000), 1548 states have internal predecessors, (2000), 425 states have call successors, (425), 122 states have call predecessors, (425), 121 states have return successors, (428), 421 states have call predecessors, (428), 423 states have call successors, (428) [2022-11-02 21:05:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2075 states to 2075 states and 2853 transitions. [2022-11-02 21:05:40,730 INFO L78 Accepts]: Start accepts. Automaton has 2075 states and 2853 transitions. Word has length 56 [2022-11-02 21:05:40,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:40,731 INFO L495 AbstractCegarLoop]: Abstraction has 2075 states and 2853 transitions. [2022-11-02 21:05:40,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-02 21:05:40,731 INFO L276 IsEmpty]: Start isEmpty. Operand 2075 states and 2853 transitions. [2022-11-02 21:05:40,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-11-02 21:05:40,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:40,734 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:40,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-02 21:05:40,734 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:40,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:40,735 INFO L85 PathProgramCache]: Analyzing trace with hash -124989242, now seen corresponding path program 1 times [2022-11-02 21:05:40,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:40,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908269297] [2022-11-02 21:05:40,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:40,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:05:41,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:41,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:05:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:05:41,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-02 21:05:41,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 21:05:41,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:41,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908269297] [2022-11-02 21:05:41,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908269297] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:41,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090602040] [2022-11-02 21:05:41,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:41,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:41,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:41,116 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:41,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 21:05:41,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:41,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 1210 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-02 21:05:41,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:41,948 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-02 21:05:41,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:42,090 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-02 21:05:42,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090602040] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:42,092 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:05:42,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2022-11-02 21:05:42,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065511384] [2022-11-02 21:05:42,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:42,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-02 21:05:42,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:42,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-02 21:05:42,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:05:42,096 INFO L87 Difference]: Start difference. First operand 2075 states and 2853 transitions. Second operand has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-02 21:05:47,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:47,922 INFO L93 Difference]: Finished difference Result 4711 states and 6702 transitions. [2022-11-02 21:05:47,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-02 21:05:47,925 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 80 [2022-11-02 21:05:47,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:47,942 INFO L225 Difference]: With dead ends: 4711 [2022-11-02 21:05:47,942 INFO L226 Difference]: Without dead ends: 2691 [2022-11-02 21:05:47,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2022-11-02 21:05:47,952 INFO L413 NwaCegarLoop]: 1349 mSDtfsCounter, 1343 mSDsluCounter, 5371 mSDsCounter, 0 mSdLazyCounter, 3568 mSolverCounterSat, 744 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 6720 SdHoareTripleChecker+Invalid, 4312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 744 IncrementalHoareTripleChecker+Valid, 3568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:47,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 6720 Invalid, 4312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [744 Valid, 3568 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-02 21:05:47,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2022-11-02 21:05:48,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2093. [2022-11-02 21:05:48,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2093 states, 1540 states have (on average 1.3064935064935066) internal successors, (2012), 1560 states have internal predecessors, (2012), 431 states have call successors, (431), 122 states have call predecessors, (431), 121 states have return successors, (434), 427 states have call predecessors, (434), 429 states have call successors, (434) [2022-11-02 21:05:48,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2877 transitions. [2022-11-02 21:05:48,103 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2877 transitions. Word has length 80 [2022-11-02 21:05:48,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:48,103 INFO L495 AbstractCegarLoop]: Abstraction has 2093 states and 2877 transitions. [2022-11-02 21:05:48,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 11 states have internal predecessors, (91), 5 states have call successors, (19), 4 states have call predecessors, (19), 2 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2022-11-02 21:05:48,104 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2877 transitions. [2022-11-02 21:05:48,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-11-02 21:05:48,112 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:48,113 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:48,155 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:48,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:48,329 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:48,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:48,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1267895346, now seen corresponding path program 1 times [2022-11-02 21:05:48,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:48,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980440932] [2022-11-02 21:05:48,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:48,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:48,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:05:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:48,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:48,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:48,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:05:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:48,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:05:49,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:05:49,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 21:05:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 21:05:49,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:05:49,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 21:05:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-02 21:05:49,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-11-02 21:05:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-02 21:05:49,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:05:49,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980440932] [2022-11-02 21:05:49,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980440932] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:05:49,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336614311] [2022-11-02 21:05:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:05:49,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:05:49,165 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:05:49,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 21:05:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:49,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 1838 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-02 21:05:49,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:05:50,167 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 16 proven. 40 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2022-11-02 21:05:50,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:05:50,431 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-11-02 21:05:50,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [336614311] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-02 21:05:50,432 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-02 21:05:50,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 22 [2022-11-02 21:05:50,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970402492] [2022-11-02 21:05:50,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-02 21:05:50,434 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-02 21:05:50,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:05:50,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-02 21:05:50,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=299, Unknown=0, NotChecked=0, Total=462 [2022-11-02 21:05:50,435 INFO L87 Difference]: Start difference. First operand 2093 states and 2877 transitions. Second operand has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) [2022-11-02 21:05:54,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:05:58,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:05:58,438 INFO L93 Difference]: Finished difference Result 4735 states and 6735 transitions. [2022-11-02 21:05:58,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-02 21:05:58,439 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) Word has length 159 [2022-11-02 21:05:58,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:05:58,456 INFO L225 Difference]: With dead ends: 4735 [2022-11-02 21:05:58,456 INFO L226 Difference]: Without dead ends: 2715 [2022-11-02 21:05:58,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 334 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=202, Invalid=398, Unknown=0, NotChecked=0, Total=600 [2022-11-02 21:05:58,465 INFO L413 NwaCegarLoop]: 1357 mSDtfsCounter, 803 mSDsluCounter, 5867 mSDsCounter, 0 mSdLazyCounter, 3947 mSolverCounterSat, 383 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 965 SdHoareTripleChecker+Valid, 7224 SdHoareTripleChecker+Invalid, 4330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 3947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:05:58,465 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [965 Valid, 7224 Invalid, 4330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 3947 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2022-11-02 21:05:58,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-11-02 21:05:58,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2117. [2022-11-02 21:05:58,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2117 states, 1556 states have (on average 1.3033419023136248) internal successors, (2028), 1576 states have internal predecessors, (2028), 439 states have call successors, (439), 122 states have call predecessors, (439), 121 states have return successors, (442), 435 states have call predecessors, (442), 437 states have call successors, (442) [2022-11-02 21:05:58,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2117 states to 2117 states and 2909 transitions. [2022-11-02 21:05:58,607 INFO L78 Accepts]: Start accepts. Automaton has 2117 states and 2909 transitions. Word has length 159 [2022-11-02 21:05:58,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:05:58,608 INFO L495 AbstractCegarLoop]: Abstraction has 2117 states and 2909 transitions. [2022-11-02 21:05:58,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.090909090909091) internal successors, (134), 20 states have internal predecessors, (134), 14 states have call successors, (37), 4 states have call predecessors, (37), 2 states have return successors, (31), 14 states have call predecessors, (31), 14 states have call successors, (31) [2022-11-02 21:05:58,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2117 states and 2909 transitions. [2022-11-02 21:05:58,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-02 21:05:58,613 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:05:58,614 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:05:58,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 21:05:58,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-02 21:05:58,841 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:05:58,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:05:58,842 INFO L85 PathProgramCache]: Analyzing trace with hash -165761428, now seen corresponding path program 2 times [2022-11-02 21:05:58,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:05:58,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498888652] [2022-11-02 21:05:58,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:05:58,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:05:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:05:59,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:05:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:05:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:05:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:05:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:05:59,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 21:05:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:00,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 21:06:00,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:06:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 21:06:00,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 21:06:00,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-02 21:06:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-02 21:06:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:00,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 21:06:00,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-02 21:06:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-02 21:06:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-02 21:06:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:00,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-02 21:06:00,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-02 21:06:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-11-02 21:06:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:00,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:00,204 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2022-11-02 21:06:00,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:00,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498888652] [2022-11-02 21:06:00,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498888652] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:00,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362880846] [2022-11-02 21:06:00,205 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:06:00,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:00,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:00,209 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:00,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 21:06:00,896 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-02 21:06:00,896 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:06:00,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 34 conjunts are in the unsatisfiable core [2022-11-02 21:06:00,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:01,097 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2022-11-02 21:06:01,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:01,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362880846] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:01,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:06:01,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2022-11-02 21:06:01,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73670981] [2022-11-02 21:06:01,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:01,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-02 21:06:01,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:01,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-02 21:06:01,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2022-11-02 21:06:01,100 INFO L87 Difference]: Start difference. First operand 2117 states and 2909 transitions. Second operand has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 21:06:02,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:02,985 INFO L93 Difference]: Finished difference Result 5104 states and 7041 transitions. [2022-11-02 21:06:02,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:06:02,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 248 [2022-11-02 21:06:02,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:03,011 INFO L225 Difference]: With dead ends: 5104 [2022-11-02 21:06:03,011 INFO L226 Difference]: Without dead ends: 4081 [2022-11-02 21:06:03,018 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2022-11-02 21:06:03,019 INFO L413 NwaCegarLoop]: 2734 mSDtfsCounter, 1556 mSDsluCounter, 11862 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 14596 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:03,019 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 14596 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 579 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-02 21:06:03,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4081 states. [2022-11-02 21:06:03,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4081 to 4027. [2022-11-02 21:06:03,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4027 states, 2956 states have (on average 1.3095399188092016) internal successors, (3871), 2995 states have internal predecessors, (3871), 833 states have call successors, (833), 236 states have call predecessors, (833), 237 states have return successors, (849), 827 states have call predecessors, (849), 831 states have call successors, (849) [2022-11-02 21:06:03,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4027 states to 4027 states and 5553 transitions. [2022-11-02 21:06:03,320 INFO L78 Accepts]: Start accepts. Automaton has 4027 states and 5553 transitions. Word has length 248 [2022-11-02 21:06:03,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:03,321 INFO L495 AbstractCegarLoop]: Abstraction has 4027 states and 5553 transitions. [2022-11-02 21:06:03,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 4 states have call successors, (9), 4 states have call predecessors, (9), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-02 21:06:03,323 INFO L276 IsEmpty]: Start isEmpty. Operand 4027 states and 5553 transitions. [2022-11-02 21:06:03,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2022-11-02 21:06:03,328 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:03,328 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:03,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-02 21:06:03,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:03,541 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:03,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:03,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1712920856, now seen corresponding path program 1 times [2022-11-02 21:06:03,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:03,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774393229] [2022-11-02 21:06:03,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:03,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:04,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:04,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:04,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:06:04,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 21:06:04,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 21:06:04,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:06:04,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 21:06:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 21:06:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-02 21:06:04,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-02 21:06:04,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 21:06:04,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-02 21:06:04,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-02 21:06:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-02 21:06:04,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-02 21:06:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-02 21:06:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-02 21:06:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 712 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 712 trivial. 0 not checked. [2022-11-02 21:06:04,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:04,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774393229] [2022-11-02 21:06:04,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774393229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:04,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:04,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-02 21:06:04,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085861624] [2022-11-02 21:06:04,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:04,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:04,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:04,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:04,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-02 21:06:04,648 INFO L87 Difference]: Start difference. First operand 4027 states and 5553 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-02 21:06:10,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:18,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-02 21:06:22,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:22,117 INFO L93 Difference]: Finished difference Result 7785 states and 11433 transitions. [2022-11-02 21:06:22,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-02 21:06:22,118 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 255 [2022-11-02 21:06:22,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:22,169 INFO L225 Difference]: With dead ends: 7785 [2022-11-02 21:06:22,170 INFO L226 Difference]: Without dead ends: 7782 [2022-11-02 21:06:22,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:22,175 INFO L413 NwaCegarLoop]: 2786 mSDtfsCounter, 4402 mSDsluCounter, 4052 mSDsCounter, 0 mSdLazyCounter, 4517 mSolverCounterSat, 1684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4870 SdHoareTripleChecker+Valid, 6838 SdHoareTripleChecker+Invalid, 6201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1684 IncrementalHoareTripleChecker+Valid, 4517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:22,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4870 Valid, 6838 Invalid, 6201 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1684 Valid, 4517 Invalid, 0 Unknown, 0 Unchecked, 16.6s Time] [2022-11-02 21:06:22,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7782 states. [2022-11-02 21:06:22,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7782 to 6161. [2022-11-02 21:06:22,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6161 states, 4507 states have (on average 1.3106279121366762) internal successors, (5907), 4578 states have internal predecessors, (5907), 1285 states have call successors, (1285), 349 states have call predecessors, (1285), 368 states have return successors, (1386), 1289 states have call predecessors, (1386), 1283 states have call successors, (1386) [2022-11-02 21:06:22,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6161 states to 6161 states and 8578 transitions. [2022-11-02 21:06:22,703 INFO L78 Accepts]: Start accepts. Automaton has 6161 states and 8578 transitions. Word has length 255 [2022-11-02 21:06:22,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:22,704 INFO L495 AbstractCegarLoop]: Abstraction has 6161 states and 8578 transitions. [2022-11-02 21:06:22,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 4 states have internal predecessors, (69), 4 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-02 21:06:22,704 INFO L276 IsEmpty]: Start isEmpty. Operand 6161 states and 8578 transitions. [2022-11-02 21:06:22,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-02 21:06:22,710 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:22,711 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:22,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-02 21:06:22,711 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:22,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:22,712 INFO L85 PathProgramCache]: Analyzing trace with hash -2024634197, now seen corresponding path program 1 times [2022-11-02 21:06:22,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:22,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403417466] [2022-11-02 21:06:22,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:22,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:06:23,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 21:06:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 21:06:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:06:23,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 21:06:23,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 21:06:23,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-02 21:06:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-02 21:06:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 21:06:23,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-02 21:06:23,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-02 21:06:23,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-02 21:06:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-02 21:06:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-11-02 21:06:23,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-11-02 21:06:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-11-02 21:06:23,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:23,348 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2022-11-02 21:06:23,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:23,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403417466] [2022-11-02 21:06:23,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403417466] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:23,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 21:06:23,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-02 21:06:23,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034146207] [2022-11-02 21:06:23,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:23,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:06:23,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:23,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:06:23,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:23,351 INFO L87 Difference]: Start difference. First operand 6161 states and 8578 transitions. Second operand has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-02 21:06:30,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:30,501 INFO L93 Difference]: Finished difference Result 14445 states and 21080 transitions. [2022-11-02 21:06:30,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:06:30,502 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 254 [2022-11-02 21:06:30,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:30,557 INFO L225 Difference]: With dead ends: 14445 [2022-11-02 21:06:30,558 INFO L226 Difference]: Without dead ends: 8391 [2022-11-02 21:06:30,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-02 21:06:30,585 INFO L413 NwaCegarLoop]: 1432 mSDtfsCounter, 722 mSDsluCounter, 2243 mSDsCounter, 0 mSdLazyCounter, 1596 mSolverCounterSat, 341 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 876 SdHoareTripleChecker+Valid, 3675 SdHoareTripleChecker+Invalid, 1937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 341 IncrementalHoareTripleChecker+Valid, 1596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:30,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [876 Valid, 3675 Invalid, 1937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [341 Valid, 1596 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2022-11-02 21:06:30,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8391 states. [2022-11-02 21:06:31,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8391 to 6804. [2022-11-02 21:06:31,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6804 states, 4988 states have (on average 1.3235765838011226) internal successors, (6602), 5071 states have internal predecessors, (6602), 1447 states have call successors, (1447), 349 states have call predecessors, (1447), 368 states have return successors, (1586), 1445 states have call predecessors, (1586), 1445 states have call successors, (1586) [2022-11-02 21:06:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6804 states to 6804 states and 9635 transitions. [2022-11-02 21:06:31,148 INFO L78 Accepts]: Start accepts. Automaton has 6804 states and 9635 transitions. Word has length 254 [2022-11-02 21:06:31,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:31,149 INFO L495 AbstractCegarLoop]: Abstraction has 6804 states and 9635 transitions. [2022-11-02 21:06:31,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-02 21:06:31,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6804 states and 9635 transitions. [2022-11-02 21:06:31,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2022-11-02 21:06:31,155 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:31,155 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:31,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-02 21:06:31,156 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:31,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:31,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1820542204, now seen corresponding path program 1 times [2022-11-02 21:06:31,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:31,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173610482] [2022-11-02 21:06:31,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:31,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:31,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:31,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:31,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:31,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:31,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:31,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-02 21:06:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-11-02 21:06:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-11-02 21:06:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-11-02 21:06:32,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-02 21:06:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-02 21:06:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-02 21:06:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-02 21:06:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-02 21:06:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-02 21:06:32,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:32,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-02 21:06:32,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-02 21:06:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:32,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-11-02 21:06:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-02 21:06:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-11-02 21:06:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-11-02 21:06:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 29 proven. 14 refuted. 0 times theorem prover too weak. 637 trivial. 0 not checked. [2022-11-02 21:06:32,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:32,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173610482] [2022-11-02 21:06:32,177 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173610482] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:32,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043253761] [2022-11-02 21:06:32,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:32,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:32,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:32,179 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:32,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 21:06:33,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:33,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 2674 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-02 21:06:33,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:33,287 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 553 trivial. 0 not checked. [2022-11-02 21:06:33,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:33,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043253761] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:33,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:06:33,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 7 [2022-11-02 21:06:33,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189820406] [2022-11-02 21:06:33,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:33,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-02 21:06:33,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:33,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-02 21:06:33,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:33,291 INFO L87 Difference]: Start difference. First operand 6804 states and 9635 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 21:06:33,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:33,827 INFO L93 Difference]: Finished difference Result 13611 states and 19278 transitions. [2022-11-02 21:06:33,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 21:06:33,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 256 [2022-11-02 21:06:33,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:33,866 INFO L225 Difference]: With dead ends: 13611 [2022-11-02 21:06:33,866 INFO L226 Difference]: Without dead ends: 6793 [2022-11-02 21:06:33,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-02 21:06:33,898 INFO L413 NwaCegarLoop]: 1476 mSDtfsCounter, 0 mSDsluCounter, 4416 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:33,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5892 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 21:06:33,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6793 states. [2022-11-02 21:06:34,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6793 to 6793. [2022-11-02 21:06:34,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6793 states, 4981 states have (on average 1.3234290303151977) internal successors, (6592), 5063 states have internal predecessors, (6592), 1445 states have call successors, (1445), 347 states have call predecessors, (1445), 366 states have return successors, (1584), 1443 states have call predecessors, (1584), 1443 states have call successors, (1584) [2022-11-02 21:06:34,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6793 states to 6793 states and 9621 transitions. [2022-11-02 21:06:34,426 INFO L78 Accepts]: Start accepts. Automaton has 6793 states and 9621 transitions. Word has length 256 [2022-11-02 21:06:34,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:34,426 INFO L495 AbstractCegarLoop]: Abstraction has 6793 states and 9621 transitions. [2022-11-02 21:06:34,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-02 21:06:34,427 INFO L276 IsEmpty]: Start isEmpty. Operand 6793 states and 9621 transitions. [2022-11-02 21:06:34,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-11-02 21:06:34,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:34,437 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:34,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:34,653 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:34,653 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:34,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:34,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1402142028, now seen corresponding path program 1 times [2022-11-02 21:06:34,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:34,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311874933] [2022-11-02 21:06:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:34,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:35,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-11-02 21:06:37,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:06:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-02 21:06:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-11-02 21:06:37,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-02 21:06:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-02 21:06:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-02 21:06:37,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-02 21:06:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-11-02 21:06:37,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-11-02 21:06:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-11-02 21:06:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-11-02 21:06:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2022-11-02 21:06:37,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2022-11-02 21:06:37,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:37,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-02 21:06:37,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-02 21:06:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2022-11-02 21:06:37,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2022-11-02 21:06:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2022-11-02 21:06:37,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 422 [2022-11-02 21:06:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:37,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 15 proven. 186 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-11-02 21:06:37,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:37,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311874933] [2022-11-02 21:06:37,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311874933] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:37,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705857621] [2022-11-02 21:06:37,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:37,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:37,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:37,832 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:37,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 21:06:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:39,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 4650 conjuncts, 49 conjunts are in the unsatisfiable core [2022-11-02 21:06:39,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:39,720 INFO L134 CoverageAnalysis]: Checked inductivity of 2092 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 1936 trivial. 0 not checked. [2022-11-02 21:06:39,720 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:39,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705857621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:39,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:06:39,721 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 10 [2022-11-02 21:06:39,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9268439] [2022-11-02 21:06:39,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:39,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-02 21:06:39,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-02 21:06:39,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-11-02 21:06:39,728 INFO L87 Difference]: Start difference. First operand 6793 states and 9621 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:06:40,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:40,228 INFO L93 Difference]: Finished difference Result 13586 states and 19263 transitions. [2022-11-02 21:06:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-02 21:06:40,229 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 440 [2022-11-02 21:06:40,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:40,260 INFO L225 Difference]: With dead ends: 13586 [2022-11-02 21:06:40,261 INFO L226 Difference]: Without dead ends: 6801 [2022-11-02 21:06:40,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 554 GetRequests, 541 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-02 21:06:40,282 INFO L413 NwaCegarLoop]: 1463 mSDtfsCounter, 6 mSDsluCounter, 8758 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 10221 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:40,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 10221 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:40,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2022-11-02 21:06:40,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6795. [2022-11-02 21:06:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6795 states, 4982 states have (on average 1.323364110798876) internal successors, (6593), 5065 states have internal predecessors, (6593), 1445 states have call successors, (1445), 347 states have call predecessors, (1445), 367 states have return successors, (1590), 1443 states have call predecessors, (1590), 1443 states have call successors, (1590) [2022-11-02 21:06:40,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 9628 transitions. [2022-11-02 21:06:40,732 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 9628 transitions. Word has length 440 [2022-11-02 21:06:40,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:40,732 INFO L495 AbstractCegarLoop]: Abstraction has 6795 states and 9628 transitions. [2022-11-02 21:06:40,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 7 states have internal predecessors, (92), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-02 21:06:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 9628 transitions. [2022-11-02 21:06:40,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2022-11-02 21:06:40,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:40,746 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:40,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 21:06:40,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-02 21:06:40,973 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:40,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:40,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1118399652, now seen corresponding path program 1 times [2022-11-02 21:06:40,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:40,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770096159] [2022-11-02 21:06:40,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:40,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:43,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:43,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 21:06:44,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 21:06:44,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-02 21:06:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-11-02 21:06:44,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-11-02 21:06:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-02 21:06:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-11-02 21:06:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-11-02 21:06:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-11-02 21:06:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-11-02 21:06:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2022-11-02 21:06:44,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 335 [2022-11-02 21:06:44,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-11-02 21:06:44,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-11-02 21:06:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:44,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-02 21:06:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2022-11-02 21:06:44,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 460 [2022-11-02 21:06:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2022-11-02 21:06:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 478 [2022-11-02 21:06:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2288 backedges. 19 proven. 112 refuted. 0 times theorem prover too weak. 2157 trivial. 0 not checked. [2022-11-02 21:06:44,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:44,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770096159] [2022-11-02 21:06:44,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770096159] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:44,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524760448] [2022-11-02 21:06:44,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:44,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:44,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:44,705 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:44,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 21:06:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:49,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 4946 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-02 21:06:49,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:49,726 INFO L134 CoverageAnalysis]: Checked inductivity of 2288 backedges. 425 proven. 0 refuted. 0 times theorem prover too weak. 1863 trivial. 0 not checked. [2022-11-02 21:06:49,726 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 21:06:49,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524760448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 21:06:49,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-02 21:06:49,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 8 [2022-11-02 21:06:49,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056736637] [2022-11-02 21:06:49,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 21:06:49,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-02 21:06:49,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:49,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-02 21:06:49,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-11-02 21:06:49,731 INFO L87 Difference]: Start difference. First operand 6795 states and 9628 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-02 21:06:50,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:06:50,103 INFO L93 Difference]: Finished difference Result 13586 states and 19267 transitions. [2022-11-02 21:06:50,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-02 21:06:50,104 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 496 [2022-11-02 21:06:50,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:06:50,137 INFO L225 Difference]: With dead ends: 13586 [2022-11-02 21:06:50,138 INFO L226 Difference]: Without dead ends: 6801 [2022-11-02 21:06:50,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 622 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-02 21:06:50,162 INFO L413 NwaCegarLoop]: 1465 mSDtfsCounter, 1 mSDsluCounter, 5847 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7312 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 21:06:50,162 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7312 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 21:06:50,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6801 states. [2022-11-02 21:06:50,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6801 to 6795. [2022-11-02 21:06:50,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6795 states, 4982 states have (on average 1.323364110798876) internal successors, (6593), 5065 states have internal predecessors, (6593), 1445 states have call successors, (1445), 347 states have call predecessors, (1445), 367 states have return successors, (1589), 1443 states have call predecessors, (1589), 1443 states have call successors, (1589) [2022-11-02 21:06:50,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6795 states to 6795 states and 9627 transitions. [2022-11-02 21:06:50,602 INFO L78 Accepts]: Start accepts. Automaton has 6795 states and 9627 transitions. Word has length 496 [2022-11-02 21:06:50,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:06:50,603 INFO L495 AbstractCegarLoop]: Abstraction has 6795 states and 9627 transitions. [2022-11-02 21:06:50,603 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-02 21:06:50,603 INFO L276 IsEmpty]: Start isEmpty. Operand 6795 states and 9627 transitions. [2022-11-02 21:06:50,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-11-02 21:06:50,618 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:06:50,618 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 16, 16, 16, 16, 16, 16, 16, 16, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:06:50,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-11-02 21:06:50,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-02 21:06:50,845 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:06:50,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:06:50,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1505253812, now seen corresponding path program 2 times [2022-11-02 21:06:50,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:06:50,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076605759] [2022-11-02 21:06:50,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:06:50,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:06:51,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:53,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 21:06:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-11-02 21:06:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-11-02 21:06:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-02 21:06:54,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-02 21:06:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-11-02 21:06:54,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-02 21:06:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-11-02 21:06:54,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-11-02 21:06:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-11-02 21:06:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-11-02 21:06:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-11-02 21:06:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2022-11-02 21:06:54,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 431 [2022-11-02 21:06:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 438 [2022-11-02 21:06:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 21:06:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-02 21:06:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-11-02 21:06:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-02 21:06:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-02 21:06:54,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 492 [2022-11-02 21:06:54,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2022-11-02 21:06:54,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 528 [2022-11-02 21:06:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 534 [2022-11-02 21:06:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 21:06:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 17 proven. 142 refuted. 0 times theorem prover too weak. 2773 trivial. 0 not checked. [2022-11-02 21:06:54,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 21:06:54,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076605759] [2022-11-02 21:06:54,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076605759] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:54,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219226678] [2022-11-02 21:06:54,716 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-02 21:06:54,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:06:54,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 21:06:54,717 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 21:06:54,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 21:06:58,391 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-02 21:06:58,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-02 21:06:58,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 5242 conjuncts, 86 conjunts are in the unsatisfiable core [2022-11-02 21:06:58,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 21:06:58,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-11-02 21:06:58,776 INFO L390 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 [2022-11-02 21:06:58,840 INFO L134 CoverageAnalysis]: Checked inductivity of 2932 backedges. 1008 proven. 2 refuted. 0 times theorem prover too weak. 1922 trivial. 0 not checked. [2022-11-02 21:06:58,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-02 21:06:59,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219226678] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-02 21:06:59,284 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-02 21:06:59,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 15] total 21 [2022-11-02 21:06:59,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868993805] [2022-11-02 21:06:59,285 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-02 21:06:59,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-02 21:06:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 21:06:59,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-02 21:06:59,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2022-11-02 21:06:59,287 INFO L87 Difference]: Start difference. First operand 6795 states and 9627 transitions. Second operand has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 16 states have internal predecessors, (156), 4 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-02 21:07:08,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 21:07:08,934 INFO L93 Difference]: Finished difference Result 15177 states and 22229 transitions. [2022-11-02 21:07:08,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-02 21:07:08,934 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 16 states have internal predecessors, (156), 4 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) Word has length 552 [2022-11-02 21:07:08,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 21:07:08,976 INFO L225 Difference]: With dead ends: 15177 [2022-11-02 21:07:08,976 INFO L226 Difference]: Without dead ends: 8392 [2022-11-02 21:07:08,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1144 GetRequests, 1114 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=790, Unknown=0, NotChecked=0, Total=930 [2022-11-02 21:07:08,998 INFO L413 NwaCegarLoop]: 1335 mSDtfsCounter, 1193 mSDsluCounter, 12057 mSDsCounter, 0 mSdLazyCounter, 8735 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1295 SdHoareTripleChecker+Valid, 13392 SdHoareTripleChecker+Invalid, 10301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 8735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 820 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2022-11-02 21:07:08,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1295 Valid, 13392 Invalid, 10301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [746 Valid, 8735 Invalid, 0 Unknown, 820 Unchecked, 8.8s Time] [2022-11-02 21:07:09,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2022-11-02 21:07:09,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 6810. [2022-11-02 21:07:09,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6810 states, 4992 states have (on average 1.3227163461538463) internal successors, (6603), 5075 states have internal predecessors, (6603), 1445 states have call successors, (1445), 352 states have call predecessors, (1445), 372 states have return successors, (1588), 1443 states have call predecessors, (1588), 1443 states have call successors, (1588) [2022-11-02 21:07:09,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6810 states to 6810 states and 9636 transitions. [2022-11-02 21:07:09,503 INFO L78 Accepts]: Start accepts. Automaton has 6810 states and 9636 transitions. Word has length 552 [2022-11-02 21:07:09,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 21:07:09,504 INFO L495 AbstractCegarLoop]: Abstraction has 6810 states and 9636 transitions. [2022-11-02 21:07:09,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.428571428571429) internal successors, (156), 16 states have internal predecessors, (156), 4 states have call successors, (35), 6 states have call predecessors, (35), 6 states have return successors, (29), 6 states have call predecessors, (29), 4 states have call successors, (29) [2022-11-02 21:07:09,504 INFO L276 IsEmpty]: Start isEmpty. Operand 6810 states and 9636 transitions. [2022-11-02 21:07:09,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2022-11-02 21:07:09,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 21:07:09,511 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 21:07:09,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 21:07:09,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ba8a91fd-c48c-43fe-ae5a-622f49eb461d/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 21:07:09,725 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 21:07:09,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 21:07:09,726 INFO L85 PathProgramCache]: Analyzing trace with hash -870176852, now seen corresponding path program 1 times [2022-11-02 21:07:09,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 21:07:09,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864229423] [2022-11-02 21:07:09,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 21:07:09,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 21:07:33,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat