./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro --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 d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 20:28:20,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:28:20,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:28:20,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:28:20,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:28:20,666 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:28:20,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:28:20,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:28:20,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:28:20,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:28:20,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:28:20,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:28:20,683 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:28:20,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:28:20,685 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:28:20,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:28:20,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:28:20,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:28:20,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:28:20,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:28:20,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:28:20,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:28:20,705 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:28:20,706 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:28:20,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:28:20,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:28:20,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:28:20,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:28:20,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:28:20,718 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:28:20,718 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:28:20,719 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:28:20,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:28:20,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:28:20,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:28:20,722 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:28:20,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:28:20,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:28:20,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:28:20,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:28:20,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:28:20,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 20:28:20,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:28:20,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:28:20,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:28:20,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:28:20,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:28:20,770 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:28:20,775 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:28:20,775 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:28:20,776 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:28:20,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:28:20,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:28:20,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:28:20,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:28:20,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:28:20,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:28:20,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:28:20,778 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:28:20,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:28:20,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:28:20,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:28:20,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:28:20,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:20,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:28:20,780 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:28:20,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:28:20,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:28:20,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:28:20,780 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:28:20,780 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:28:20,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:28:20,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d57db9f03a5170fd6970a4ac4989029ee35a0e85ad6a1c5337395bb7ff185d1b [2022-11-18 20:28:21,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:28:21,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:28:21,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:28:21,134 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:28:21,135 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:28:21,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2022-11-18 20:28:21,219 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/data/13907334d/34217092d17e41b9a15605b1a46f8060/FLAG6341b5d95 [2022-11-18 20:28:22,382 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:28:22,383 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2022-11-18 20:28:22,452 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/data/13907334d/34217092d17e41b9a15605b1a46f8060/FLAG6341b5d95 [2022-11-18 20:28:22,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/data/13907334d/34217092d17e41b9a15605b1a46f8060 [2022-11-18 20:28:22,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:28:22,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:28:22,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:22,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:28:22,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:28:22,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:22" (1/1) ... [2022-11-18 20:28:22,659 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438a6a53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:22, skipping insertion in model container [2022-11-18 20:28:22,659 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:28:22" (1/1) ... [2022-11-18 20:28:22,667 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:28:22,872 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:28:26,677 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2022-11-18 20:28:27,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:27,063 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:28:27,900 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i[477998,478011] [2022-11-18 20:28:27,922 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:28:28,112 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:28:28,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28 WrapperNode [2022-11-18 20:28:28,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:28:28,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:28,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:28:28,117 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:28:28,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,465 INFO L138 Inliner]: procedures = 483, calls = 2853, calls flagged for inlining = 237, calls inlined = 184, statements flattened = 6881 [2022-11-18 20:28:28,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:28:28,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:28:28,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:28:28,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:28:28,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,756 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:28:28,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:28:28,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:28:28,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:28:28,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (1/1) ... [2022-11-18 20:28:28,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:28:28,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:28:28,848 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:28:28,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:28:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ib_wc_status_msg [2022-11-18 20:28:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_wc_status_msg [2022-11-18 20:28:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-18 20:28:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-18 20:28:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure isert_setup_id [2022-11-18 20:28:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_setup_id [2022-11-18 20:28:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-18 20:28:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-18 20:28:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-11-18 20:28:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_isert_conn [2022-11-18 20:28:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-11-18 20:28:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-11-18 20:28:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure dump_stack [2022-11-18 20:28:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_stack [2022-11-18 20:28:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_stop_dataout_timer [2022-11-18 20:28:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_stop_dataout_timer [2022-11-18 20:28:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure rdma_destroy_id [2022-11-18 20:28:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rdma_destroy_id [2022-11-18 20:28:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:28:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2022-11-18 20:28:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure isert_cq_work [2022-11-18 20:28:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_cq_work [2022-11-18 20:28:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-18 20:28:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-18 20:28:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_recv [2022-11-18 20:28:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_recv [2022-11-18 20:28:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_device [2022-11-18 20:28:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_device [2022-11-18 20:28:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-18 20:28:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-18 20:28:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-11-18 20:28:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_isert_conn [2022-11-18 20:28:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_unmap_single [2022-11-18 20:28:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_unmap_single [2022-11-18 20:28:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_send_wr [2022-11-18 20:28:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_send_wr [2022-11-18 20:28:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-11-18 20:28:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_np_accept_mutex_of_isert_np [2022-11-18 20:28:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-18 20:28:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-18 20:28:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-18 20:28:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-18 20:28:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-11-18 20:28:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_np_accept_mutex_of_isert_np [2022-11-18 20:28:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 20:28:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_address [2022-11-18 20:28:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_address [2022-11-18 20:28:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait_conn [2022-11-18 20:28:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait_conn [2022-11-18 20:28:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-11-18 20:28:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u64~0~X~int~X~int~TO~VOID [2022-11-18 20:28:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-18 20:28:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-18 20:28:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-11-18 20:28:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-11-18 20:28:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_map_single [2022-11-18 20:28:28,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_map_single [2022-11-18 20:28:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-18 20:28:28,986 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_terminate [2022-11-18 20:28:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_terminate [2022-11-18 20:28:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-18 20:28:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-18 20:28:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-18 20:28:28,987 INFO L130 BoogieDeclarations]: Found specification of procedure isert_prot_cmd [2022-11-18 20:28:28,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_prot_cmd [2022-11-18 20:28:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 20:28:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-18 20:28:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-18 20:28:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible [2022-11-18 20:28:28,988 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible [2022-11-18 20:28:28,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-18 20:28:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-18 20:28:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure isert_release_work [2022-11-18 20:28:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_release_work [2022-11-18 20:28:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_np [2022-11-18 20:28:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_np [2022-11-18 20:28:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure isert_comp_put [2022-11-18 20:28:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_comp_put [2022-11-18 20:28:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-18 20:28:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-18 20:28:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-18 20:28:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-18 20:28:28,990 INFO L130 BoogieDeclarations]: Found specification of procedure sg_next [2022-11-18 20:28:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_next [2022-11-18 20:28:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_from_buffer [2022-11-18 20:28:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_from_buffer [2022-11-18 20:28:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-18 20:28:28,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-18 20:28:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-18 20:28:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-11-18 20:28:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-11-18 20:28:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:28:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-11-18 20:28:28,992 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-11-18 20:28:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 20:28:28,992 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-18 20:28:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:28:28,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-18 20:28:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure isert_completion_put [2022-11-18 20:28:28,993 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_completion_put [2022-11-18 20:28:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 20:28:28,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-18 20:28:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_data_buf [2022-11-18 20:28:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_data_buf [2022-11-18 20:28:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure isert_inv_rkey [2022-11-18 20:28:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_inv_rkey [2022-11-18 20:28:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-18 20:28:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-18 20:28:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_sync_single_for_cpu [2022-11-18 20:28:28,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_sync_single_for_cpu [2022-11-18 20:28:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-18 20:28:28,995 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-18 20:28:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure isert_allocate_cmd [2022-11-18 20:28:28,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_allocate_cmd [2022-11-18 20:28:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure isert_do_control_comp [2022-11-18 20:28:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_do_control_comp [2022-11-18 20:28:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_conn [2022-11-18 20:28:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_conn [2022-11-18 20:28:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure isert_connect_release [2022-11-18 20:28:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_connect_release [2022-11-18 20:28:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_comps [2022-11-18 20:28:28,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_comps [2022-11-18 20:28:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:28:28,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:28:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-11-18 20:28:28,997 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-11-18 20:28:28,997 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-18 20:28:28,998 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-18 20:28:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-18 20:28:28,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-18 20:28:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-18 20:28:28,998 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-18 20:28:28,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-18 20:28:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-18 20:28:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure isert_device_put [2022-11-18 20:28:28,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_device_put [2022-11-18 20:28:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-18 20:28:28,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-18 20:28:28,999 INFO L130 BoogieDeclarations]: Found specification of procedure isert_map_data_buf [2022-11-18 20:28:28,999 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_map_data_buf [2022-11-18 20:28:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-18 20:28:29,000 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-18 20:28:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_conn [2022-11-18 20:28:29,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_conn [2022-11-18 20:28:29,000 INFO L130 BoogieDeclarations]: Found specification of procedure ib_post_send [2022-11-18 20:28:29,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_post_send [2022-11-18 20:28:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure isert_init_tx_hdrs [2022-11-18 20:28:29,001 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_init_tx_hdrs [2022-11-18 20:28:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-11-18 20:28:29,001 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-11-18 20:28:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-18 20:28:29,001 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-18 20:28:29,001 INFO L130 BoogieDeclarations]: Found specification of procedure ib_free_fast_reg_page_list [2022-11-18 20:28:29,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_free_fast_reg_page_list [2022-11-18 20:28:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-11-18 20:28:29,002 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-11-18 20:28:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-18 20:28:29,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-18 20:28:29,002 INFO L130 BoogieDeclarations]: Found specification of procedure isert_aborted_task [2022-11-18 20:28:29,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_aborted_task [2022-11-18 20:28:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-18 20:28:29,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-18 20:28:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-11-18 20:28:29,003 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-11-18 20:28:29,003 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_response [2022-11-18 20:28:29,003 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_response [2022-11-18 20:28:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure isert_wait4flush [2022-11-18 20:28:29,004 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_wait4flush [2022-11-18 20:28:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-18 20:28:29,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-18 20:28:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 20:28:29,004 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 20:28:29,004 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-18 20:28:29,005 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-18 20:28:29,005 INFO L130 BoogieDeclarations]: Found specification of procedure isert_free_login_buf [2022-11-18 20:28:29,005 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_free_login_buf [2022-11-18 20:28:29,005 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-11-18 20:28:29,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-11-18 20:28:29,005 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2022-11-18 20:28:29,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2022-11-18 20:28:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 20:28:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-18 20:28:29,006 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-18 20:28:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_priv_cmd [2022-11-18 20:28:29,006 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_priv_cmd [2022-11-18 20:28:29,006 INFO L130 BoogieDeclarations]: Found specification of procedure isert_put_nopin [2022-11-18 20:28:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_put_nopin [2022-11-18 20:28:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-18 20:28:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2022-11-18 20:28:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2022-11-18 20:28:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_rdma [2022-11-18 20:28:29,007 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_rdma [2022-11-18 20:28:29,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-18 20:28:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_recv [2022-11-18 20:28:29,008 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_recv [2022-11-18 20:28:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-18 20:28:29,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-18 20:28:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-18 20:28:29,008 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-18 20:28:29,008 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2022-11-18 20:28:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2022-11-18 20:28:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-18 20:28:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-18 20:28:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-18 20:28:29,009 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-18 20:28:29,009 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rdma_post_recvl [2022-11-18 20:28:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rdma_post_recvl [2022-11-18 20:28:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure isert_conn_free_fastreg_pool [2022-11-18 20:28:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_conn_free_fastreg_pool [2022-11-18 20:28:29,010 INFO L130 BoogieDeclarations]: Found specification of procedure transport_send_check_condition_and_sense [2022-11-18 20:28:29,010 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_send_check_condition_and_sense [2022-11-18 20:28:29,014 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-18 20:28:29,014 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-18 20:28:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure isert_reg_sig_mr [2022-11-18 20:28:29,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_reg_sig_mr [2022-11-18 20:28:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure transport_generic_free_cmd [2022-11-18 20:28:29,015 INFO L138 BoogieDeclarations]: Found implementation of procedure transport_generic_free_cmd [2022-11-18 20:28:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure isert_unmap_tx_desc [2022-11-18 20:28:29,015 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_unmap_tx_desc [2022-11-18 20:28:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-18 20:28:29,015 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-18 20:28:29,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_device_list_mutex [2022-11-18 20:28:29,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_device_list_mutex [2022-11-18 20:28:29,016 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_device_list_mutex [2022-11-18 20:28:29,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_device_list_mutex [2022-11-18 20:28:29,016 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_weight [2022-11-18 20:28:29,016 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_weight [2022-11-18 20:28:29,016 INFO L130 BoogieDeclarations]: Found specification of procedure isert_handle_prot_cmd [2022-11-18 20:28:29,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_handle_prot_cmd [2022-11-18 20:28:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dereg_mr [2022-11-18 20:28:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dereg_mr [2022-11-18 20:28:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure ib_req_notify_cq [2022-11-18 20:28:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_req_notify_cq [2022-11-18 20:28:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-18 20:28:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-18 20:28:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure isert_check_pi_status [2022-11-18 20:28:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_check_pi_status [2022-11-18 20:28:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-11-18 20:28:29,017 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-11-18 20:28:29,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 20:28:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure isert_create_send_desc [2022-11-18 20:28:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_create_send_desc [2022-11-18 20:28:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-18 20:28:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-18 20:28:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure ib_sg_dma_len [2022-11-18 20:28:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_sg_dma_len [2022-11-18 20:28:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure isert_fast_reg_mr [2022-11-18 20:28:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_fast_reg_mr [2022-11-18 20:28:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-18 20:28:29,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-18 20:28:29,018 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab64 [2022-11-18 20:28:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab64 [2022-11-18 20:28:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure isert_post_response [2022-11-18 20:28:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_post_response [2022-11-18 20:28:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_mr [2022-11-18 20:28:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_mr [2022-11-18 20:28:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-11-18 20:28:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-11-18 20:28:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure isert_rx_login_req [2022-11-18 20:28:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_rx_login_req [2022-11-18 20:28:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2022-11-18 20:28:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2022-11-18 20:28:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dma_mapping_error [2022-11-18 20:28:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dma_mapping_error [2022-11-18 20:28:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:28:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 20:28:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-18 20:28:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure target_put_sess_cmd [2022-11-18 20:28:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure target_put_sess_cmd [2022-11-18 20:28:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure isert_set_dif_domain [2022-11-18 20:28:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isert_set_dif_domain [2022-11-18 20:28:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-11-18 20:28:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-11-18 20:28:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure ib_dealloc_pd [2022-11-18 20:28:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_dealloc_pd [2022-11-18 20:28:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure ib_alloc_fast_reg_page_list [2022-11-18 20:28:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ib_alloc_fast_reg_page_list [2022-11-18 20:28:29,021 INFO L130 BoogieDeclarations]: Found specification of procedure iscsit_build_rsp_pdu [2022-11-18 20:28:29,021 INFO L138 BoogieDeclarations]: Found implementation of procedure iscsit_build_rsp_pdu [2022-11-18 20:28:30,145 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:28:30,153 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:28:30,433 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-18 20:28:39,737 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:28:39,764 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:28:39,764 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:28:39,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:39 BoogieIcfgContainer [2022-11-18 20:28:39,770 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:28:39,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:28:39,773 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:28:39,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:28:39,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:28:22" (1/3) ... [2022-11-18 20:28:39,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57be7fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:39, skipping insertion in model container [2022-11-18 20:28:39,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:28:28" (2/3) ... [2022-11-18 20:28:39,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57be7fdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:28:39, skipping insertion in model container [2022-11-18 20:28:39,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:28:39" (3/3) ... [2022-11-18 20:28:39,787 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--infiniband--ulp--isert--ib_isert.ko-entry_point.cil.out.i [2022-11-18 20:28:39,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:28:39,811 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:28:39,948 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:28:39,959 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;@5ec4c6c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:28:39,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:28:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 2315 states, 1593 states have (on average 1.3264281230382926) internal successors, (2113), 1653 states have internal predecessors, (2113), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) [2022-11-18 20:28:40,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-18 20:28:40,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:40,013 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:28:40,014 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:40,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:40,023 INFO L85 PathProgramCache]: Analyzing trace with hash -916599974, now seen corresponding path program 1 times [2022-11-18 20:28:40,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:40,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175199635] [2022-11-18 20:28:40,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:40,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:40,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:28:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:40,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:40,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:28:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:28:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:28:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:28:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:28:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:41,370 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:28:41,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:41,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175199635] [2022-11-18 20:28:41,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175199635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:41,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:41,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 20:28:41,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830454486] [2022-11-18 20:28:41,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:41,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 20:28:41,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:41,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 20:28:41,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 20:28:41,442 INFO L87 Difference]: Start difference. First operand has 2315 states, 1593 states have (on average 1.3264281230382926) internal successors, (2113), 1653 states have internal predecessors, (2113), 590 states have call successors, (590), 131 states have call predecessors, (590), 130 states have return successors, (584), 573 states have call predecessors, (584), 584 states have call successors, (584) Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:28:44,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:53,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:28:53,455 INFO L93 Difference]: Finished difference Result 5383 states and 8085 transitions. [2022-11-18 20:28:53,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 20:28:53,460 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-11-18 20:28:53,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:28:53,510 INFO L225 Difference]: With dead ends: 5383 [2022-11-18 20:28:53,513 INFO L226 Difference]: Without dead ends: 3050 [2022-11-18 20:28:53,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:28:53,551 INFO L413 NwaCegarLoop]: 2402 mSDtfsCounter, 3661 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 3007 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3727 SdHoareTripleChecker+Valid, 3955 SdHoareTripleChecker+Invalid, 5077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3007 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:28:53,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3727 Valid, 3955 Invalid, 5077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3007 Valid, 2069 Invalid, 1 Unknown, 0 Unchecked, 11.4s Time] [2022-11-18 20:28:53,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2022-11-18 20:28:53,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2292. [2022-11-18 20:28:53,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 1578 states have (on average 1.3168567807351077) internal successors, (2078), 1630 states have internal predecessors, (2078), 584 states have call successors, (584), 130 states have call predecessors, (584), 129 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2022-11-18 20:28:53,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3234 transitions. [2022-11-18 20:28:53,869 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3234 transitions. Word has length 82 [2022-11-18 20:28:53,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:28:53,870 INFO L495 AbstractCegarLoop]: Abstraction has 2292 states and 3234 transitions. [2022-11-18 20:28:53,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:28:53,871 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3234 transitions. [2022-11-18 20:28:53,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-11-18 20:28:53,879 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:28:53,879 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:28:53,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:28:53,880 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:28:53,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:28:53,881 INFO L85 PathProgramCache]: Analyzing trace with hash -1883950628, now seen corresponding path program 1 times [2022-11-18 20:28:53,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:28:53,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500587724] [2022-11-18 20:28:53,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:28:53,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:28:53,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:28:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:28:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:28:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:28:54,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:28:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:28:54,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:28:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:28:54,658 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:28:54,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:28:54,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500587724] [2022-11-18 20:28:54,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500587724] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:28:54,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:28:54,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:28:54,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026661019] [2022-11-18 20:28:54,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:28:54,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:28:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:28:54,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:28:54,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:28:54,667 INFO L87 Difference]: Start difference. First operand 2292 states and 3234 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:28:57,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:28:59,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:13,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:13,267 INFO L93 Difference]: Finished difference Result 3069 states and 4570 transitions. [2022-11-18 20:29:13,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:29:13,267 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 82 [2022-11-18 20:29:13,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:13,291 INFO L225 Difference]: With dead ends: 3069 [2022-11-18 20:29:13,291 INFO L226 Difference]: Without dead ends: 3065 [2022-11-18 20:29:13,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:29:13,295 INFO L413 NwaCegarLoop]: 2354 mSDtfsCounter, 5462 mSDsluCounter, 3808 mSDsCounter, 0 mSdLazyCounter, 3670 mSolverCounterSat, 2623 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5796 SdHoareTripleChecker+Valid, 6162 SdHoareTripleChecker+Invalid, 6295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 3670 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:13,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5796 Valid, 6162 Invalid, 6295 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2623 Valid, 3670 Invalid, 2 Unknown, 0 Unchecked, 18.0s Time] [2022-11-18 20:29:13,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2022-11-18 20:29:13,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2305. [2022-11-18 20:29:13,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2305 states, 1588 states have (on average 1.31360201511335) internal successors, (2086), 1638 states have internal predecessors, (2086), 582 states have call successors, (582), 135 states have call predecessors, (582), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2022-11-18 20:29:13,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2305 states to 2305 states and 3240 transitions. [2022-11-18 20:29:13,505 INFO L78 Accepts]: Start accepts. Automaton has 2305 states and 3240 transitions. Word has length 82 [2022-11-18 20:29:13,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:13,508 INFO L495 AbstractCegarLoop]: Abstraction has 2305 states and 3240 transitions. [2022-11-18 20:29:13,508 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:29:13,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2305 states and 3240 transitions. [2022-11-18 20:29:13,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-18 20:29:13,513 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:13,514 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:29:13,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:29:13,514 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:13,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:13,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1726098160, now seen corresponding path program 1 times [2022-11-18 20:29:13,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:13,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860985825] [2022-11-18 20:29:13,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:13,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:13,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:13,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:29:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:13,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:13,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:29:13,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:29:13,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:29:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:29:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:14,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:29:14,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:29:14,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:14,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860985825] [2022-11-18 20:29:14,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860985825] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:14,232 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:14,232 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:29:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216999301] [2022-11-18 20:29:14,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:14,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:29:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:14,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:29:14,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:29:14,234 INFO L87 Difference]: Start difference. First operand 2305 states and 3240 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:29:16,748 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:25,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:25,311 INFO L93 Difference]: Finished difference Result 3065 states and 4565 transitions. [2022-11-18 20:29:25,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:29:25,312 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 83 [2022-11-18 20:29:25,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:25,331 INFO L225 Difference]: With dead ends: 3065 [2022-11-18 20:29:25,331 INFO L226 Difference]: Without dead ends: 3062 [2022-11-18 20:29:25,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:29:25,336 INFO L413 NwaCegarLoop]: 2354 mSDtfsCounter, 6805 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 3683 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7147 SdHoareTripleChecker+Valid, 3888 SdHoareTripleChecker+Invalid, 5776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3683 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:25,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7147 Valid, 3888 Invalid, 5776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3683 Valid, 2092 Invalid, 1 Unknown, 0 Unchecked, 10.7s Time] [2022-11-18 20:29:25,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3062 states. [2022-11-18 20:29:25,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3062 to 2304. [2022-11-18 20:29:25,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2304 states, 1588 states have (on average 1.3129722921914357) internal successors, (2085), 1637 states have internal predecessors, (2085), 581 states have call successors, (581), 135 states have call predecessors, (581), 134 states have return successors, (572), 561 states have call predecessors, (572), 572 states have call successors, (572) [2022-11-18 20:29:25,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2304 states to 2304 states and 3238 transitions. [2022-11-18 20:29:25,509 INFO L78 Accepts]: Start accepts. Automaton has 2304 states and 3238 transitions. Word has length 83 [2022-11-18 20:29:25,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:25,509 INFO L495 AbstractCegarLoop]: Abstraction has 2304 states and 3238 transitions. [2022-11-18 20:29:25,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:29:25,510 INFO L276 IsEmpty]: Start isEmpty. Operand 2304 states and 3238 transitions. [2022-11-18 20:29:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-18 20:29:25,512 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:25,512 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:29:25,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 20:29:25,513 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:25,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:25,513 INFO L85 PathProgramCache]: Analyzing trace with hash 53254262, now seen corresponding path program 1 times [2022-11-18 20:29:25,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:25,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669717445] [2022-11-18 20:29:25,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:25,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:25,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:29:25,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:25,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:29:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:29:25,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:25,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:29:25,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:29:25,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:25,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:29:25,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:25,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:25,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:29:26,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:26,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669717445] [2022-11-18 20:29:26,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669717445] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:26,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:26,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:29:26,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535981335] [2022-11-18 20:29:26,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:26,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:29:26,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:26,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:29:26,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:29:26,006 INFO L87 Difference]: Start difference. First operand 2304 states and 3238 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-18 20:29:33,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:35,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:50,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:29:50,092 INFO L93 Difference]: Finished difference Result 7905 states and 11547 transitions. [2022-11-18 20:29:50,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:29:50,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 86 [2022-11-18 20:29:50,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:29:50,131 INFO L225 Difference]: With dead ends: 7905 [2022-11-18 20:29:50,131 INFO L226 Difference]: Without dead ends: 5622 [2022-11-18 20:29:50,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:29:50,146 INFO L413 NwaCegarLoop]: 2678 mSDtfsCounter, 6988 mSDsluCounter, 5964 mSDsCounter, 0 mSdLazyCounter, 6547 mSolverCounterSat, 4127 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7297 SdHoareTripleChecker+Valid, 8642 SdHoareTripleChecker+Invalid, 10676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4127 IncrementalHoareTripleChecker+Valid, 6547 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:29:50,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7297 Valid, 8642 Invalid, 10676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4127 Valid, 6547 Invalid, 2 Unknown, 0 Unchecked, 23.3s Time] [2022-11-18 20:29:50,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5622 states. [2022-11-18 20:29:50,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5622 to 4111. [2022-11-18 20:29:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4111 states, 2846 states have (on average 1.3099086437104708) internal successors, (3728), 2935 states have internal predecessors, (3728), 1003 states have call successors, (1003), 262 states have call predecessors, (1003), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2022-11-18 20:29:50,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4111 states to 4111 states and 5725 transitions. [2022-11-18 20:29:50,480 INFO L78 Accepts]: Start accepts. Automaton has 4111 states and 5725 transitions. Word has length 86 [2022-11-18 20:29:50,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:29:50,481 INFO L495 AbstractCegarLoop]: Abstraction has 4111 states and 5725 transitions. [2022-11-18 20:29:50,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2022-11-18 20:29:50,481 INFO L276 IsEmpty]: Start isEmpty. Operand 4111 states and 5725 transitions. [2022-11-18 20:29:50,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-11-18 20:29:50,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:29:50,484 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:29:50,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 20:29:50,484 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:29:50,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:29:50,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1968465759, now seen corresponding path program 1 times [2022-11-18 20:29:50,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:29:50,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584449981] [2022-11-18 20:29:50,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:29:50,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:29:50,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:50,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:29:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:50,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:50,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:29:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:50,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:29:50,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:50,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:50,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:29:50,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:50,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:51,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:29:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:51,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:51,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:29:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:51,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:29:51,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:29:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:29:51,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:29:51,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584449981] [2022-11-18 20:29:51,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584449981] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:29:51,123 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:29:51,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:29:51,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654327068] [2022-11-18 20:29:51,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:29:51,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:29:51,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:29:51,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:29:51,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:29:51,125 INFO L87 Difference]: Start difference. First operand 4111 states and 5725 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:29:57,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:29:59,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:02,669 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:09,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:09,836 INFO L93 Difference]: Finished difference Result 5603 states and 8311 transitions. [2022-11-18 20:30:09,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:30:09,837 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-11-18 20:30:09,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:30:09,870 INFO L225 Difference]: With dead ends: 5603 [2022-11-18 20:30:09,870 INFO L226 Difference]: Without dead ends: 5600 [2022-11-18 20:30:09,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:30:09,876 INFO L413 NwaCegarLoop]: 2333 mSDtfsCounter, 5480 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 3616 mSolverCounterSat, 2613 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5826 SdHoareTripleChecker+Valid, 6120 SdHoareTripleChecker+Invalid, 6231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2613 IncrementalHoareTripleChecker+Valid, 3616 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:30:09,876 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5826 Valid, 6120 Invalid, 6231 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2613 Valid, 3616 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2022-11-18 20:30:09,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5600 states. [2022-11-18 20:30:10,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5600 to 4110. [2022-11-18 20:30:10,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4110 states, 2846 states have (on average 1.3095572733661278) internal successors, (3727), 2934 states have internal predecessors, (3727), 1002 states have call successors, (1002), 262 states have call predecessors, (1002), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2022-11-18 20:30:10,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4110 states to 4110 states and 5723 transitions. [2022-11-18 20:30:10,265 INFO L78 Accepts]: Start accepts. Automaton has 4110 states and 5723 transitions. Word has length 84 [2022-11-18 20:30:10,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:30:10,266 INFO L495 AbstractCegarLoop]: Abstraction has 4110 states and 5723 transitions. [2022-11-18 20:30:10,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:30:10,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4110 states and 5723 transitions. [2022-11-18 20:30:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-11-18 20:30:10,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:30:10,269 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:30:10,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 20:30:10,269 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:30:10,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:10,270 INFO L85 PathProgramCache]: Analyzing trace with hash 891931603, now seen corresponding path program 1 times [2022-11-18 20:30:10,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:10,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644540591] [2022-11-18 20:30:10,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:10,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:30:10,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:30:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:30:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:30:10,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:30:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:30:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:10,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:10,881 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:30:10,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:10,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644540591] [2022-11-18 20:30:10,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644540591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:10,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:10,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:30:10,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273049642] [2022-11-18 20:30:10,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:10,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:30:10,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:10,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:30:10,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:30:10,885 INFO L87 Difference]: Start difference. First operand 4110 states and 5723 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:30:16,920 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:21,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:21,743 INFO L93 Difference]: Finished difference Result 5602 states and 8309 transitions. [2022-11-18 20:30:21,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 20:30:21,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2022-11-18 20:30:21,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:30:21,803 INFO L225 Difference]: With dead ends: 5602 [2022-11-18 20:30:21,804 INFO L226 Difference]: Without dead ends: 5599 [2022-11-18 20:30:21,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:30:21,809 INFO L413 NwaCegarLoop]: 2351 mSDtfsCounter, 6777 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 2078 mSolverCounterSat, 3669 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7120 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 5748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3669 IncrementalHoareTripleChecker+Valid, 2078 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-18 20:30:21,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7120 Valid, 3885 Invalid, 5748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3669 Valid, 2078 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-18 20:30:21,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5599 states. [2022-11-18 20:30:22,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5599 to 4109. [2022-11-18 20:30:22,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4109 states, 2846 states have (on average 1.3092059030217849) internal successors, (3726), 2933 states have internal predecessors, (3726), 1001 states have call successors, (1001), 262 states have call predecessors, (1001), 261 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2022-11-18 20:30:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4109 states to 4109 states and 5721 transitions. [2022-11-18 20:30:22,206 INFO L78 Accepts]: Start accepts. Automaton has 4109 states and 5721 transitions. Word has length 85 [2022-11-18 20:30:22,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:30:22,208 INFO L495 AbstractCegarLoop]: Abstraction has 4109 states and 5721 transitions. [2022-11-18 20:30:22,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:30:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4109 states and 5721 transitions. [2022-11-18 20:30:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-11-18 20:30:22,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:30:22,210 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:30:22,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 20:30:22,210 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:30:22,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:22,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1879116002, now seen corresponding path program 1 times [2022-11-18 20:30:22,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:22,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095501771] [2022-11-18 20:30:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:22,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:30:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:30:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:30:22,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:22,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:30:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:22,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:30:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:30:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:22,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:22,729 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:30:22,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:22,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095501771] [2022-11-18 20:30:22,729 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095501771] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:22,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:22,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:30:22,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203114539] [2022-11-18 20:30:22,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:22,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:30:22,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:22,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:30:22,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:30:22,731 INFO L87 Difference]: Start difference. First operand 4109 states and 5721 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:30:28,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:30,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:33,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:35,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:39,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:39,538 INFO L93 Difference]: Finished difference Result 5621 states and 8320 transitions. [2022-11-18 20:30:39,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 20:30:39,538 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2022-11-18 20:30:39,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:30:39,568 INFO L225 Difference]: With dead ends: 5621 [2022-11-18 20:30:39,568 INFO L226 Difference]: Without dead ends: 5617 [2022-11-18 20:30:39,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:30:39,573 INFO L413 NwaCegarLoop]: 2342 mSDtfsCounter, 5820 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 2892 mSolverCounterSat, 2743 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6142 SdHoareTripleChecker+Valid, 4972 SdHoareTripleChecker+Invalid, 5637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2743 IncrementalHoareTripleChecker+Valid, 2892 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:30:39,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6142 Valid, 4972 Invalid, 5637 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2743 Valid, 2892 Invalid, 2 Unknown, 0 Unchecked, 16.1s Time] [2022-11-18 20:30:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5617 states. [2022-11-18 20:30:39,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5617 to 4125. [2022-11-18 20:30:39,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4125 states, 2858 states have (on average 1.3068579426172149) internal successors, (3735), 2943 states have internal predecessors, (3735), 999 states have call successors, (999), 268 states have call predecessors, (999), 267 states have return successors, (994), 971 states have call predecessors, (994), 994 states have call successors, (994) [2022-11-18 20:30:40,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4125 states to 4125 states and 5728 transitions. [2022-11-18 20:30:40,014 INFO L78 Accepts]: Start accepts. Automaton has 4125 states and 5728 transitions. Word has length 86 [2022-11-18 20:30:40,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:30:40,014 INFO L495 AbstractCegarLoop]: Abstraction has 4125 states and 5728 transitions. [2022-11-18 20:30:40,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:30:40,015 INFO L276 IsEmpty]: Start isEmpty. Operand 4125 states and 5728 transitions. [2022-11-18 20:30:40,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-11-18 20:30:40,017 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:30:40,017 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-18 20:30:40,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 20:30:40,017 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:30:40,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:40,018 INFO L85 PathProgramCache]: Analyzing trace with hash -1877901130, now seen corresponding path program 1 times [2022-11-18 20:30:40,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:40,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636323531] [2022-11-18 20:30:40,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:40,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:40,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:30:40,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:40,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:30:40,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:30:40,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:40,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:30:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:40,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:30:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:40,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:30:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:40,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:40,559 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:30:40,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:40,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636323531] [2022-11-18 20:30:40,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636323531] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:40,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:40,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 20:30:40,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510071679] [2022-11-18 20:30:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:40,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 20:30:40,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:40,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 20:30:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 20:30:40,562 INFO L87 Difference]: Start difference. First operand 4125 states and 5728 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:30:46,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:30:52,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:30:52,541 INFO L93 Difference]: Finished difference Result 6148 states and 8993 transitions. [2022-11-18 20:30:52,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:30:52,543 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2022-11-18 20:30:52,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:30:52,570 INFO L225 Difference]: With dead ends: 6148 [2022-11-18 20:30:52,570 INFO L226 Difference]: Without dead ends: 6128 [2022-11-18 20:30:52,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-18 20:30:52,577 INFO L413 NwaCegarLoop]: 2370 mSDtfsCounter, 7106 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 2471 mSolverCounterSat, 3871 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7459 SdHoareTripleChecker+Valid, 3966 SdHoareTripleChecker+Invalid, 6343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3871 IncrementalHoareTripleChecker+Valid, 2471 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2022-11-18 20:30:52,577 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7459 Valid, 3966 Invalid, 6343 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3871 Valid, 2471 Invalid, 1 Unknown, 0 Unchecked, 11.1s Time] [2022-11-18 20:30:52,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6128 states. [2022-11-18 20:30:53,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6128 to 4535. [2022-11-18 20:30:53,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4535 states, 3129 states have (on average 1.2959411952700544) internal successors, (4055), 3219 states have internal predecessors, (4055), 1084 states have call successors, (1084), 322 states have call predecessors, (1084), 321 states have return successors, (1079), 1057 states have call predecessors, (1079), 1079 states have call successors, (1079) [2022-11-18 20:30:53,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4535 states to 4535 states and 6218 transitions. [2022-11-18 20:30:53,061 INFO L78 Accepts]: Start accepts. Automaton has 4535 states and 6218 transitions. Word has length 87 [2022-11-18 20:30:53,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:30:53,061 INFO L495 AbstractCegarLoop]: Abstraction has 4535 states and 6218 transitions. [2022-11-18 20:30:53,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (9), 5 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 20:30:53,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4535 states and 6218 transitions. [2022-11-18 20:30:53,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-11-18 20:30:53,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:30:53,065 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:30:53,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 20:30:53,065 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:30:53,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:30:53,066 INFO L85 PathProgramCache]: Analyzing trace with hash 885995033, now seen corresponding path program 1 times [2022-11-18 20:30:53,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:30:53,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727044734] [2022-11-18 20:30:53,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:30:53,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:30:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:30:53,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:53,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:30:53,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:30:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:30:53,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:53,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:30:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:53,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:30:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:30:53,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:30:53,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:30:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:30:53,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:30:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:30:53,783 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-11-18 20:30:53,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:30:53,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727044734] [2022-11-18 20:30:53,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727044734] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:30:53,783 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:30:53,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:30:53,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983226417] [2022-11-18 20:30:53,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:30:53,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:30:53,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:30:53,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:30:53,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:30:53,786 INFO L87 Difference]: Start difference. First operand 4535 states and 6218 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 20:31:01,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:31:11,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:11,153 INFO L93 Difference]: Finished difference Result 6753 states and 10037 transitions. [2022-11-18 20:31:11,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 20:31:11,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2022-11-18 20:31:11,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:11,185 INFO L225 Difference]: With dead ends: 6753 [2022-11-18 20:31:11,185 INFO L226 Difference]: Without dead ends: 6732 [2022-11-18 20:31:11,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-11-18 20:31:11,191 INFO L413 NwaCegarLoop]: 1385 mSDtfsCounter, 5865 mSDsluCounter, 2779 mSDsCounter, 0 mSdLazyCounter, 6543 mSolverCounterSat, 4297 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6148 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 10841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4297 IncrementalHoareTripleChecker+Valid, 6543 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:11,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6148 Valid, 4164 Invalid, 10841 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4297 Valid, 6543 Invalid, 1 Unknown, 0 Unchecked, 16.2s Time] [2022-11-18 20:31:11,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6732 states. [2022-11-18 20:31:11,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6732 to 4516. [2022-11-18 20:31:11,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4516 states, 3121 states have (on average 1.2954181352130727) internal successors, (4043), 3208 states have internal predecessors, (4043), 1073 states have call successors, (1073), 322 states have call predecessors, (1073), 321 states have return successors, (1071), 1049 states have call predecessors, (1071), 1071 states have call successors, (1071) [2022-11-18 20:31:11,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4516 states to 4516 states and 6187 transitions. [2022-11-18 20:31:11,648 INFO L78 Accepts]: Start accepts. Automaton has 4516 states and 6187 transitions. Word has length 107 [2022-11-18 20:31:11,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:11,649 INFO L495 AbstractCegarLoop]: Abstraction has 4516 states and 6187 transitions. [2022-11-18 20:31:11,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-18 20:31:11,649 INFO L276 IsEmpty]: Start isEmpty. Operand 4516 states and 6187 transitions. [2022-11-18 20:31:11,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-18 20:31:11,663 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:11,663 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:11,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 20:31:11,663 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:11,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:11,664 INFO L85 PathProgramCache]: Analyzing trace with hash -954377762, now seen corresponding path program 1 times [2022-11-18 20:31:11,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:11,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789662024] [2022-11-18 20:31:11,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:11,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:11,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:31:12,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:12,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:12,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:31:12,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:12,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:31:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:12,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:31:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:12,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:31:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:12,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-18 20:31:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-11-18 20:31:12,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-18 20:31:12,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-18 20:31:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-18 20:31:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-11-18 20:31:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:12,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-18 20:31:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:13,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 20:31:13,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:13,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-11-18 20:31:13,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:13,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-18 20:31:13,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:13,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-18 20:31:13,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:13,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 20:31:13,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:13,148 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-11-18 20:31:13,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:13,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789662024] [2022-11-18 20:31:13,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789662024] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:31:13,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1015714965] [2022-11-18 20:31:13,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:13,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:31:13,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:31:13,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:31:13,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 20:31:14,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:14,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 3044 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-18 20:31:14,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:31:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-11-18 20:31:14,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:31:14,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1015714965] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:14,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:31:14,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2022-11-18 20:31:14,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205110327] [2022-11-18 20:31:14,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:14,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:31:14,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:14,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:31:14,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-11-18 20:31:14,875 INFO L87 Difference]: Start difference. First operand 4516 states and 6187 transitions. Second operand has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-18 20:31:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:15,753 INFO L93 Difference]: Finished difference Result 8654 states and 11913 transitions. [2022-11-18 20:31:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 20:31:15,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 170 [2022-11-18 20:31:15,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:15,778 INFO L225 Difference]: With dead ends: 8654 [2022-11-18 20:31:15,779 INFO L226 Difference]: Without dead ends: 4169 [2022-11-18 20:31:15,801 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2022-11-18 20:31:15,802 INFO L413 NwaCegarLoop]: 3159 mSDtfsCounter, 32 mSDsluCounter, 15697 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 18856 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:15,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 18856 Invalid, 126 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 20:31:15,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4169 states. [2022-11-18 20:31:16,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4169 to 4169. [2022-11-18 20:31:16,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4169 states, 2894 states have (on average 1.2985487214927436) internal successors, (3758), 2970 states have internal predecessors, (3758), 989 states have call successors, (989), 286 states have call predecessors, (989), 285 states have return successors, (987), 973 states have call predecessors, (987), 987 states have call successors, (987) [2022-11-18 20:31:16,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4169 states to 4169 states and 5734 transitions. [2022-11-18 20:31:16,347 INFO L78 Accepts]: Start accepts. Automaton has 4169 states and 5734 transitions. Word has length 170 [2022-11-18 20:31:16,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:16,348 INFO L495 AbstractCegarLoop]: Abstraction has 4169 states and 5734 transitions. [2022-11-18 20:31:16,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 15.333333333333334) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (28), 5 states have call predecessors, (28), 2 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-11-18 20:31:16,348 INFO L276 IsEmpty]: Start isEmpty. Operand 4169 states and 5734 transitions. [2022-11-18 20:31:16,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-11-18 20:31:16,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:16,365 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:16,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 20:31:16,580 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-18 20:31:16,580 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:16,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:16,581 INFO L85 PathProgramCache]: Analyzing trace with hash 707992236, now seen corresponding path program 1 times [2022-11-18 20:31:16,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:16,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29075301] [2022-11-18 20:31:16,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:16,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:16,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:31:16,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:16,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:16,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:31:17,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:31:17,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:31:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:31:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-11-18 20:31:17,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:31:17,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 20:31:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:17,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 20:31:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:17,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-18 20:31:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-11-18 20:31:17,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-18 20:31:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:17,466 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2022-11-18 20:31:17,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:17,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29075301] [2022-11-18 20:31:17,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29075301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:17,467 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:17,467 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 20:31:17,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456144139] [2022-11-18 20:31:17,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:17,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 20:31:17,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:17,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 20:31:17,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-18 20:31:17,470 INFO L87 Difference]: Start difference. First operand 4169 states and 5734 transitions. Second operand has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 20:31:27,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:31:29,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:31:35,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:31:43,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:31:43,062 INFO L93 Difference]: Finished difference Result 9827 states and 14050 transitions. [2022-11-18 20:31:43,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 20:31:43,063 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 181 [2022-11-18 20:31:43,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:31:43,095 INFO L225 Difference]: With dead ends: 9827 [2022-11-18 20:31:43,095 INFO L226 Difference]: Without dead ends: 5683 [2022-11-18 20:31:43,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-18 20:31:43,114 INFO L413 NwaCegarLoop]: 858 mSDtfsCounter, 4969 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 11453 mSolverCounterSat, 2958 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5262 SdHoareTripleChecker+Valid, 3668 SdHoareTripleChecker+Invalid, 14413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2958 IncrementalHoareTripleChecker+Valid, 11453 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.4s IncrementalHoareTripleChecker+Time [2022-11-18 20:31:43,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5262 Valid, 3668 Invalid, 14413 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2958 Valid, 11453 Invalid, 2 Unknown, 0 Unchecked, 24.4s Time] [2022-11-18 20:31:43,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5683 states. [2022-11-18 20:31:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5683 to 4169. [2022-11-18 20:31:43,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4169 states, 2894 states have (on average 1.2978576364892882) internal successors, (3756), 2970 states have internal predecessors, (3756), 989 states have call successors, (989), 286 states have call predecessors, (989), 285 states have return successors, (987), 973 states have call predecessors, (987), 987 states have call successors, (987) [2022-11-18 20:31:43,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4169 states to 4169 states and 5732 transitions. [2022-11-18 20:31:43,659 INFO L78 Accepts]: Start accepts. Automaton has 4169 states and 5732 transitions. Word has length 181 [2022-11-18 20:31:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:31:43,660 INFO L495 AbstractCegarLoop]: Abstraction has 4169 states and 5732 transitions. [2022-11-18 20:31:43,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.0) internal successors, (72), 4 states have internal predecessors, (72), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-18 20:31:43,660 INFO L276 IsEmpty]: Start isEmpty. Operand 4169 states and 5732 transitions. [2022-11-18 20:31:43,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-18 20:31:43,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:31:43,675 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:31:43,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 20:31:43,676 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:31:43,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:31:43,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1157584201, now seen corresponding path program 1 times [2022-11-18 20:31:43,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:31:43,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436475346] [2022-11-18 20:31:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:31:43,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:31:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:31:44,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:31:44,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:31:44,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:31:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:31:44,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-11-18 20:31:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:31:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-11-18 20:31:44,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:44,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-11-18 20:31:44,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-11-18 20:31:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-18 20:31:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:31:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:31:44,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-18 20:31:44,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-18 20:31:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-18 20:31:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:31:44,541 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2022-11-18 20:31:44,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:31:44,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436475346] [2022-11-18 20:31:44,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436475346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:31:44,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:31:44,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 20:31:44,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211019546] [2022-11-18 20:31:44,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:31:44,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 20:31:44,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:31:44,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 20:31:44,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-18 20:31:44,543 INFO L87 Difference]: Start difference. First operand 4169 states and 5732 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 20:31:52,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-18 20:32:01,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:01,278 INFO L93 Difference]: Finished difference Result 5688 states and 8345 transitions. [2022-11-18 20:32:01,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-18 20:32:01,278 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 197 [2022-11-18 20:32:01,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:01,303 INFO L225 Difference]: With dead ends: 5688 [2022-11-18 20:32:01,304 INFO L226 Difference]: Without dead ends: 5685 [2022-11-18 20:32:01,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:32:01,309 INFO L413 NwaCegarLoop]: 851 mSDtfsCounter, 6076 mSDsluCounter, 1631 mSDsCounter, 0 mSdLazyCounter, 7827 mSolverCounterSat, 4142 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6377 SdHoareTripleChecker+Valid, 2482 SdHoareTripleChecker+Invalid, 11970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4142 IncrementalHoareTripleChecker+Valid, 7827 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:01,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6377 Valid, 2482 Invalid, 11970 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4142 Valid, 7827 Invalid, 1 Unknown, 0 Unchecked, 15.7s Time] [2022-11-18 20:32:01,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5685 states. [2022-11-18 20:32:01,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5685 to 4168. [2022-11-18 20:32:01,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4168 states, 2894 states have (on average 1.2975120939875604) internal successors, (3755), 2969 states have internal predecessors, (3755), 988 states have call successors, (988), 286 states have call predecessors, (988), 285 states have return successors, (987), 973 states have call predecessors, (987), 987 states have call successors, (987) [2022-11-18 20:32:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4168 states to 4168 states and 5730 transitions. [2022-11-18 20:32:01,829 INFO L78 Accepts]: Start accepts. Automaton has 4168 states and 5730 transitions. Word has length 197 [2022-11-18 20:32:01,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:01,830 INFO L495 AbstractCegarLoop]: Abstraction has 4168 states and 5730 transitions. [2022-11-18 20:32:01,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (20), 7 states have call predecessors, (20), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-18 20:32:01,830 INFO L276 IsEmpty]: Start isEmpty. Operand 4168 states and 5730 transitions. [2022-11-18 20:32:01,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-18 20:32:01,846 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:32:01,846 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 20:32:01,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 20:32:01,847 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:32:01,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:32:01,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1780697617, now seen corresponding path program 1 times [2022-11-18 20:32:01,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:32:01,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704757590] [2022-11-18 20:32:01,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:01,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:32:01,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 20:32:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:32:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-18 20:32:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 20:32:02,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:32:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 20:32:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:32:02,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-11-18 20:32:02,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:32:02,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 20:32:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-18 20:32:02,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-11-18 20:32:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-11-18 20:32:02,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-11-18 20:32:02,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-11-18 20:32:02,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:02,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-11-18 20:32:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-11-18 20:32:03,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-18 20:32:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-11-18 20:32:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-11-18 20:32:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-18 20:32:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-18 20:32:03,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-18 20:32:03,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 20:32:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-18 20:32:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-11-18 20:32:03,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:32:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704757590] [2022-11-18 20:32:03,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704757590] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 20:32:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071473358] [2022-11-18 20:32:03,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:32:03,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 20:32:03,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:32:03,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 20:32:03,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 20:32:04,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:32:04,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 3157 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-18 20:32:04,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:32:04,562 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2022-11-18 20:32:04,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:32:04,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071473358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:32:04,563 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-18 20:32:04,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [13] total 14 [2022-11-18 20:32:04,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709827487] [2022-11-18 20:32:04,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:32:04,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 20:32:04,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:32:04,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 20:32:04,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:32:04,565 INFO L87 Difference]: Start difference. First operand 4168 states and 5730 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 20:32:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:32:04,956 INFO L93 Difference]: Finished difference Result 4168 states and 5730 transitions. [2022-11-18 20:32:04,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 20:32:04,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 188 [2022-11-18 20:32:04,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:32:04,958 INFO L225 Difference]: With dead ends: 4168 [2022-11-18 20:32:04,958 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 20:32:04,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2022-11-18 20:32:04,977 INFO L413 NwaCegarLoop]: 3175 mSDtfsCounter, 68 mSDsluCounter, 3095 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 6270 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:32:04,977 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 6270 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:32:04,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 20:32:04,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 20:32:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 20:32:04,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 20:32:04,980 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 188 [2022-11-18 20:32:04,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:32:04,980 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 20:32:04,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (31), 3 states have call predecessors, (31), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-11-18 20:32:04,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 20:32:04,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 20:32:04,988 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:32:05,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:32:05,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_deb33204-711f-40b2-b2f4-68a13946948e/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-18 20:32:05,197 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 20:32:50,713 WARN L233 SmtUtils]: Spent 45.49s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:33:33,097 WARN L233 SmtUtils]: Spent 42.38s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:34:17,810 WARN L233 SmtUtils]: Spent 44.71s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:34:55,531 WARN L233 SmtUtils]: Spent 37.72s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:35:30,806 WARN L233 SmtUtils]: Spent 35.27s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:36:06,040 WARN L233 SmtUtils]: Spent 35.23s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:36:43,758 WARN L233 SmtUtils]: Spent 37.72s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:37:21,989 WARN L233 SmtUtils]: Spent 38.23s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:37:57,669 WARN L233 SmtUtils]: Spent 35.68s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:38:33,355 WARN L233 SmtUtils]: Spent 35.68s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:39:09,036 WARN L233 SmtUtils]: Spent 35.68s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:39:55,825 WARN L233 SmtUtils]: Spent 46.79s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:40:39,616 WARN L233 SmtUtils]: Spent 43.79s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:41:27,951 WARN L233 SmtUtils]: Spent 48.33s on a formula simplification. DAG size of input: 74 DAG size of output: 71 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-18 20:42:14,371 WARN L233 SmtUtils]: Spent 46.42s on a formula simplification. DAG size of input: 70 DAG size of output: 67 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)