./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8 --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 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 --- 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-e04fb08 [2022-11-16 12:03:06,671 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:03:06,674 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:03:06,693 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:03:06,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:03:06,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:03:06,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:03:06,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:03:06,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:03:06,700 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:03:06,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:03:06,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:03:06,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:03:06,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:03:06,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:03:06,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:03:06,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:03:06,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:03:06,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:03:06,713 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:03:06,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:03:06,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:03:06,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:03:06,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:03:06,723 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:03:06,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:03:06,724 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:03:06,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:03:06,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:03:06,727 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:03:06,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:03:06,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:03:06,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:03:06,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:03:06,731 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:03:06,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:03:06,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:03:06,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:03:06,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:03:06,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:03:06,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:03:06,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:03:06,760 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:03:06,761 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:03:06,761 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:03:06,761 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:03:06,762 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:03:06,763 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:03:06,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:03:06,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:03:06,764 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:03:06,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:03:06,764 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:03:06,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:03:06,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:03:06,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:03:06,765 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:03:06,765 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:03:06,766 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:03:06,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:03:06,766 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:03:06,766 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:03:06,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:03:06,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:03:06,767 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:03:06,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:03:06,767 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:03:06,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:03:06,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:03:06,768 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:03:06,768 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:03:06,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:03:06,769 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_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 [2022-11-16 12:03:07,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:03:07,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:03:07,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:03:07,123 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:03:07,124 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:03:07,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-16 12:03:07,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/data/a741d6b81/cc419e9280494afda492a9774e112b39/FLAG23536a468 [2022-11-16 12:03:08,334 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:03:08,335 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-16 12:03:08,399 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/data/a741d6b81/cc419e9280494afda492a9774e112b39/FLAG23536a468 [2022-11-16 12:03:08,608 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/data/a741d6b81/cc419e9280494afda492a9774e112b39 [2022-11-16 12:03:08,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:03:08,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:03:08,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:08,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:03:08,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:03:08,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38dc7673 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:08, skipping insertion in model container [2022-11-16 12:03:08,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:08" (1/1) ... [2022-11-16 12:03:08,639 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:03:08,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:03:10,052 WARN L229 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_6d639013-ec46-47fe-8c3d-99a874aafc3e/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2022-11-16 12:03:12,630 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:12,730 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:03:12,913 WARN L229 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_6d639013-ec46-47fe-8c3d-99a874aafc3e/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2022-11-16 12:03:13,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:03:13,843 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:03:13,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13 WrapperNode [2022-11-16 12:03:13,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:03:13,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:13,848 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:03:13,848 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:03:13,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:14,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:14,738 INFO L138 Inliner]: procedures = 488, calls = 4847, calls flagged for inlining = 239, calls inlined = 220, statements flattened = 9733 [2022-11-16 12:03:14,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:03:14,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:03:14,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:03:14,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:03:14,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:14,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,083 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:03:15,936 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:03:15,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:03:15,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:03:15,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (1/1) ... [2022-11-16 12:03:15,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:03:15,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:03:15,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:03:15,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6d639013-ec46-47fe-8c3d-99a874aafc3e/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:03:16,024 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 12:03:16,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 12:03:16,024 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2022-11-16 12:03:16,024 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2022-11-16 12:03:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-16 12:03:16,025 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-16 12:03:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 12:03:16,025 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2022-11-16 12:03:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2022-11-16 12:03:16,026 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2022-11-16 12:03:16,026 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2022-11-16 12:03:16,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:03:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:03:16,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2022-11-16 12:03:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2022-11-16 12:03:16,027 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2022-11-16 12:03:16,027 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2022-11-16 12:03:16,027 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2022-11-16 12:03:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2022-11-16 12:03:16,028 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2022-11-16 12:03:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2022-11-16 12:03:16,028 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2022-11-16 12:03:16,028 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2022-11-16 12:03:16,028 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2022-11-16 12:03:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2022-11-16 12:03:16,029 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2022-11-16 12:03:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2022-11-16 12:03:16,029 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2022-11-16 12:03:16,029 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2022-11-16 12:03:16,029 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2022-11-16 12:03:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2022-11-16 12:03:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-11-16 12:03:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-11-16 12:03:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2022-11-16 12:03:16,030 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2022-11-16 12:03:16,030 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2022-11-16 12:03:16,031 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2022-11-16 12:03:16,031 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 12:03:16,031 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 12:03:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-16 12:03:16,032 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-16 12:03:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:03:16,032 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2022-11-16 12:03:16,032 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2022-11-16 12:03:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2022-11-16 12:03:16,033 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2022-11-16 12:03:16,033 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2022-11-16 12:03:16,033 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2022-11-16 12:03:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 12:03:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2022-11-16 12:03:16,034 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2022-11-16 12:03:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-11-16 12:03:16,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-11-16 12:03:16,034 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-16 12:03:16,035 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-16 12:03:16,035 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2022-11-16 12:03:16,036 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2022-11-16 12:03:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 12:03:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-16 12:03:16,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-16 12:03:16,037 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2022-11-16 12:03:16,038 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2022-11-16 12:03:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2022-11-16 12:03:16,038 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2022-11-16 12:03:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2022-11-16 12:03:16,038 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2022-11-16 12:03:16,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:03:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:03:16,039 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:03:16,039 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2022-11-16 12:03:16,040 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2022-11-16 12:03:16,040 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 12:03:16,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 12:03:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2022-11-16 12:03:16,041 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2022-11-16 12:03:16,041 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2022-11-16 12:03:16,042 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2022-11-16 12:03:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-16 12:03:16,042 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-16 12:03:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2022-11-16 12:03:16,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2022-11-16 12:03:16,042 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2022-11-16 12:03:16,043 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2022-11-16 12:03:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-16 12:03:16,043 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-16 12:03:16,043 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2022-11-16 12:03:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2022-11-16 12:03:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2022-11-16 12:03:16,044 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2022-11-16 12:03:16,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:03:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2022-11-16 12:03:16,045 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2022-11-16 12:03:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:03:16,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-16 12:03:16,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2022-11-16 12:03:16,046 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-16 12:03:16,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-16 12:03:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:03:16,047 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:03:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-16 12:03:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2022-11-16 12:03:16,048 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2022-11-16 12:03:16,048 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2022-11-16 12:03:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2022-11-16 12:03:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2022-11-16 12:03:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2022-11-16 12:03:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2022-11-16 12:03:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2022-11-16 12:03:16,049 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2022-11-16 12:03:16,049 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 12:03:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 12:03:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-11-16 12:03:16,050 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-11-16 12:03:16,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2022-11-16 12:03:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2022-11-16 12:03:16,051 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-16 12:03:16,051 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-16 12:03:16,052 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2022-11-16 12:03:16,052 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2022-11-16 12:03:16,055 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-16 12:03:16,055 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-16 12:03:16,056 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-16 12:03:16,056 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-16 12:03:16,058 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2022-11-16 12:03:16,058 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2022-11-16 12:03:16,059 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-11-16 12:03:16,060 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-11-16 12:03:16,060 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2022-11-16 12:03:16,065 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2022-11-16 12:03:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:03:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:03:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-16 12:03:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-16 12:03:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-16 12:03:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-16 12:03:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:03:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:03:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:03:16,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:03:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-16 12:03:16,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-16 12:03:16,067 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-16 12:03:16,068 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-16 12:03:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2022-11-16 12:03:16,068 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2022-11-16 12:03:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 12:03:16,068 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 12:03:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-16 12:03:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-16 12:03:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2022-11-16 12:03:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2022-11-16 12:03:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-16 12:03:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-16 12:03:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2022-11-16 12:03:16,069 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2022-11-16 12:03:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2022-11-16 12:03:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2022-11-16 12:03:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2022-11-16 12:03:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2022-11-16 12:03:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 12:03:16,070 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 12:03:16,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:03:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:03:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-16 12:03:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-16 12:03:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 12:03:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 12:03:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:03:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:03:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2022-11-16 12:03:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2022-11-16 12:03:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:03:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:03:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 12:03:16,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 12:03:16,072 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2022-11-16 12:03:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2022-11-16 12:03:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:03:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 12:03:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 12:03:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2022-11-16 12:03:16,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2022-11-16 12:03:16,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:03:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2022-11-16 12:03:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2022-11-16 12:03:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2022-11-16 12:03:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2022-11-16 12:03:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2022-11-16 12:03:16,074 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2022-11-16 12:03:16,074 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2022-11-16 12:03:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2022-11-16 12:03:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-11-16 12:03:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-11-16 12:03:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:03:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 12:03:16,075 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 12:03:16,075 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2022-11-16 12:03:16,076 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2022-11-16 12:03:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2022-11-16 12:03:16,076 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2022-11-16 12:03:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-16 12:03:16,076 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-16 12:03:16,076 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2022-11-16 12:03:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2022-11-16 12:03:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-16 12:03:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-16 12:03:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-16 12:03:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-16 12:03:16,077 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2022-11-16 12:03:16,077 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2022-11-16 12:03:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 12:03:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 12:03:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2022-11-16 12:03:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2022-11-16 12:03:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2022-11-16 12:03:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2022-11-16 12:03:16,078 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-11-16 12:03:16,078 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-11-16 12:03:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2022-11-16 12:03:16,079 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2022-11-16 12:03:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-16 12:03:16,079 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-16 12:03:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2022-11-16 12:03:16,079 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2022-11-16 12:03:16,079 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 12:03:16,080 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 12:03:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2022-11-16 12:03:16,080 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2022-11-16 12:03:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2022-11-16 12:03:16,080 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2022-11-16 12:03:16,080 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:03:16,080 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:03:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2022-11-16 12:03:16,081 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2022-11-16 12:03:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2022-11-16 12:03:16,081 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2022-11-16 12:03:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:03:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2022-11-16 12:03:16,081 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2022-11-16 12:03:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:03:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:03:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2022-11-16 12:03:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2022-11-16 12:03:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2022-11-16 12:03:16,082 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2022-11-16 12:03:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-16 12:03:16,087 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-16 12:03:16,087 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2022-11-16 12:03:16,088 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2022-11-16 12:03:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-16 12:03:16,088 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-16 12:03:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2022-11-16 12:03:16,088 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2022-11-16 12:03:16,088 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-16 12:03:16,088 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-16 12:03:16,089 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2022-11-16 12:03:16,090 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2022-11-16 12:03:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2022-11-16 12:03:16,091 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2022-11-16 12:03:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2022-11-16 12:03:16,091 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2022-11-16 12:03:16,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2022-11-16 12:03:16,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2022-11-16 12:03:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2022-11-16 12:03:16,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2022-11-16 12:03:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2022-11-16 12:03:16,092 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2022-11-16 12:03:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2022-11-16 12:03:16,092 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2022-11-16 12:03:16,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:03:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2022-11-16 12:03:16,093 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2022-11-16 12:03:16,093 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2022-11-16 12:03:16,093 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2022-11-16 12:03:17,456 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:03:17,464 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:03:27,298 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:08:51,363 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:08:51,384 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:08:51,385 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-16 12:08:51,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:51 BoogieIcfgContainer [2022-11-16 12:08:51,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:08:51,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:08:51,394 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:08:51,402 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:08:51,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:03:08" (1/3) ... [2022-11-16 12:08:51,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc8eed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:51, skipping insertion in model container [2022-11-16 12:08:51,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:13" (2/3) ... [2022-11-16 12:08:51,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fc8eed9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:08:51, skipping insertion in model container [2022-11-16 12:08:51,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:08:51" (3/3) ... [2022-11-16 12:08:51,411 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2022-11-16 12:08:51,433 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:08:51,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:08:51,578 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:08:51,587 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;@6fe2d45a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:08:51,588 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:08:51,604 INFO L276 IsEmpty]: Start isEmpty. Operand has 2566 states, 1813 states have (on average 1.3827909542195256) internal successors, (2507), 1844 states have internal predecessors, (2507), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) [2022-11-16 12:08:51,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-16 12:08:51,638 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:08:51,639 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:08:51,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:08:51,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:08:51,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1832065015, now seen corresponding path program 1 times [2022-11-16 12:08:51,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:08:51,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471462490] [2022-11-16 12:08:51,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:08:51,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:08:52,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:53,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:08:53,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:53,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:08:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:53,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:08:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:53,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:08:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:08:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:08:53,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:08:53,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471462490] [2022-11-16 12:08:53,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471462490] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:08:53,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:08:53,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:08:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858560523] [2022-11-16 12:08:53,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:08:53,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:08:53,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:08:53,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:08:53,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:08:53,694 INFO L87 Difference]: Start difference. First operand has 2566 states, 1813 states have (on average 1.3827909542195256) internal successors, (2507), 1844 states have internal predecessors, (2507), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 12:08:55,901 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 [] [2022-11-16 12:08:57,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:01,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:06,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:11,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:23,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:26,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:49,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:51,365 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:56,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:58,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:09:58,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:09:58,860 INFO L93 Difference]: Finished difference Result 8176 states and 12699 transitions. [2022-11-16 12:09:58,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:09:58,863 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2022-11-16 12:09:58,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:09:58,941 INFO L225 Difference]: With dead ends: 8176 [2022-11-16 12:09:58,941 INFO L226 Difference]: Without dead ends: 5578 [2022-11-16 12:09:58,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:09:58,971 INFO L413 NwaCegarLoop]: 3777 mSDtfsCounter, 5467 mSDsluCounter, 6749 mSDsCounter, 0 mSdLazyCounter, 4385 mSolverCounterSat, 3256 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5961 SdHoareTripleChecker+Valid, 10526 SdHoareTripleChecker+Invalid, 7652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3256 IncrementalHoareTripleChecker+Valid, 4385 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:09:58,972 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5961 Valid, 10526 Invalid, 7652 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3256 Valid, 4385 Invalid, 11 Unknown, 0 Unchecked, 63.9s Time] [2022-11-16 12:09:58,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5578 states. [2022-11-16 12:09:59,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5578 to 4959. [2022-11-16 12:09:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4959 states, 3526 states have (on average 1.3774815655133295) internal successors, (4857), 3552 states have internal predecessors, (4857), 1181 states have call successors, (1181), 249 states have call predecessors, (1181), 251 states have return successors, (1187), 1171 states have call predecessors, (1187), 1173 states have call successors, (1187) [2022-11-16 12:09:59,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4959 states to 4959 states and 7225 transitions. [2022-11-16 12:09:59,485 INFO L78 Accepts]: Start accepts. Automaton has 4959 states and 7225 transitions. Word has length 48 [2022-11-16 12:09:59,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:09:59,487 INFO L495 AbstractCegarLoop]: Abstraction has 4959 states and 7225 transitions. [2022-11-16 12:09:59,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 12:09:59,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4959 states and 7225 transitions. [2022-11-16 12:09:59,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-16 12:09:59,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:09:59,494 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:09:59,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:09:59,495 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:09:59,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:09:59,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1478572996, now seen corresponding path program 1 times [2022-11-16 12:09:59,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:09:59,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924103717] [2022-11-16 12:09:59,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:09:59,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:09:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:00,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:10:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:10:00,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:00,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:10:00,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:00,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:10:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:10:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:10:00,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:10:00,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924103717] [2022-11-16 12:10:00,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924103717] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:10:00,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:10:00,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:10:00,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193961411] [2022-11-16 12:10:00,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:10:00,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:10:00,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:10:00,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:10:00,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:10:00,855 INFO L87 Difference]: Start difference. First operand 4959 states and 7225 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 12:10:03,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:05,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:07,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:10,766 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:16,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:19,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:23,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:34,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:10:38,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:03,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:05,783 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 [] [2022-11-16 12:11:09,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:11:09,137 INFO L93 Difference]: Finished difference Result 15856 states and 23555 transitions. [2022-11-16 12:11:09,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:11:09,138 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 49 [2022-11-16 12:11:09,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:11:09,224 INFO L225 Difference]: With dead ends: 15856 [2022-11-16 12:11:09,224 INFO L226 Difference]: Without dead ends: 10908 [2022-11-16 12:11:09,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:11:09,252 INFO L413 NwaCegarLoop]: 3764 mSDtfsCounter, 5368 mSDsluCounter, 6734 mSDsCounter, 0 mSdLazyCounter, 4433 mSolverCounterSat, 3173 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5848 SdHoareTripleChecker+Valid, 10498 SdHoareTripleChecker+Invalid, 7617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3173 IncrementalHoareTripleChecker+Valid, 4433 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:11:09,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5848 Valid, 10498 Invalid, 7617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3173 Valid, 4433 Invalid, 11 Unknown, 0 Unchecked, 67.2s Time] [2022-11-16 12:11:09,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10908 states. [2022-11-16 12:11:09,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10908 to 9713. [2022-11-16 12:11:09,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9713 states, 6925 states have (on average 1.380505415162455) internal successors, (9560), 6963 states have internal predecessors, (9560), 2295 states have call successors, (2295), 490 states have call predecessors, (2295), 492 states have return successors, (2315), 2285 states have call predecessors, (2315), 2287 states have call successors, (2315) [2022-11-16 12:11:09,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9713 states to 9713 states and 14170 transitions. [2022-11-16 12:11:09,988 INFO L78 Accepts]: Start accepts. Automaton has 9713 states and 14170 transitions. Word has length 49 [2022-11-16 12:11:09,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:11:09,989 INFO L495 AbstractCegarLoop]: Abstraction has 9713 states and 14170 transitions. [2022-11-16 12:11:09,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 12:11:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 9713 states and 14170 transitions. [2022-11-16 12:11:09,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-11-16 12:11:09,996 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:11:09,997 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:11:09,997 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:11:09,997 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:11:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:11:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1056993499, now seen corresponding path program 1 times [2022-11-16 12:11:09,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:11:10,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992832174] [2022-11-16 12:11:10,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:11:10,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:11:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:10,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:11:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:10,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:11:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:11,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:11:11,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:11,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:11:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:11:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:11:11,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:11:11,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992832174] [2022-11-16 12:11:11,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992832174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:11:11,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:11:11,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:11:11,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918191899] [2022-11-16 12:11:11,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:11:11,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:11:11,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:11:11,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:11:11,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:11:11,186 INFO L87 Difference]: Start difference. First operand 9713 states and 14170 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 12:11:13,365 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 [] [2022-11-16 12:11:15,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:20,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:23,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:28,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:39,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:11:43,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:07,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:09,825 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:14,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:16,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:17,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:12:17,247 INFO L93 Difference]: Finished difference Result 31285 states and 46451 transitions. [2022-11-16 12:12:17,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:12:17,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2022-11-16 12:12:17,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:12:17,387 INFO L225 Difference]: With dead ends: 31285 [2022-11-16 12:12:17,387 INFO L226 Difference]: Without dead ends: 21583 [2022-11-16 12:12:17,434 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:12:17,436 INFO L413 NwaCegarLoop]: 3777 mSDtfsCounter, 5408 mSDsluCounter, 6726 mSDsCounter, 0 mSdLazyCounter, 4392 mSolverCounterSat, 3194 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5889 SdHoareTripleChecker+Valid, 10503 SdHoareTripleChecker+Invalid, 7597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3194 IncrementalHoareTripleChecker+Valid, 4392 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:12:17,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5889 Valid, 10503 Invalid, 7597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3194 Valid, 4392 Invalid, 11 Unknown, 0 Unchecked, 64.6s Time] [2022-11-16 12:12:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21583 states. [2022-11-16 12:12:18,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21583 to 19183. [2022-11-16 12:12:18,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19183 states, 13691 states have (on average 1.3811993280257102) internal successors, (18910), 13753 states have internal predecessors, (18910), 4513 states have call successors, (4513), 976 states have call predecessors, (4513), 978 states have return successors, (4561), 4503 states have call predecessors, (4561), 4505 states have call successors, (4561) [2022-11-16 12:12:18,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19183 states to 19183 states and 27984 transitions. [2022-11-16 12:12:18,804 INFO L78 Accepts]: Start accepts. Automaton has 19183 states and 27984 transitions. Word has length 51 [2022-11-16 12:12:18,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:12:18,809 INFO L495 AbstractCegarLoop]: Abstraction has 19183 states and 27984 transitions. [2022-11-16 12:12:18,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (7), 3 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-16 12:12:18,809 INFO L276 IsEmpty]: Start isEmpty. Operand 19183 states and 27984 transitions. [2022-11-16 12:12:18,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 12:12:18,814 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:12:18,814 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:12:18,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:12:18,815 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:12:18,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:12:18,815 INFO L85 PathProgramCache]: Analyzing trace with hash -1297816834, now seen corresponding path program 1 times [2022-11-16 12:12:18,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:12:18,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846870930] [2022-11-16 12:12:18,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:12:18,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:12:19,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:19,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:12:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:19,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:12:19,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:19,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:12:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:12:19,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:20,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-11-16 12:12:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:20,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:20,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:20,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:12:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:12:20,120 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:12:20,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:12:20,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846870930] [2022-11-16 12:12:20,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846870930] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:12:20,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:12:20,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:12:20,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208304549] [2022-11-16 12:12:20,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:12:20,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:12:20,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:12:20,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:12:20,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:12:20,124 INFO L87 Difference]: Start difference. First operand 19183 states and 27984 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:12:22,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:24,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:26,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:33,660 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:36,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:40,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:12:45,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:04,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:10,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:29,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:31,812 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 [] [2022-11-16 12:13:36,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:13:36,655 INFO L93 Difference]: Finished difference Result 56697 states and 84239 transitions. [2022-11-16 12:13:36,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:13:36,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2022-11-16 12:13:36,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:13:36,879 INFO L225 Difference]: With dead ends: 56697 [2022-11-16 12:13:36,880 INFO L226 Difference]: Without dead ends: 37525 [2022-11-16 12:13:36,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:13:36,980 INFO L413 NwaCegarLoop]: 4243 mSDtfsCounter, 4000 mSDsluCounter, 9663 mSDsCounter, 0 mSdLazyCounter, 6120 mSolverCounterSat, 2387 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 71.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4428 SdHoareTripleChecker+Valid, 13906 SdHoareTripleChecker+Invalid, 8517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2387 IncrementalHoareTripleChecker+Valid, 6120 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 74.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:13:36,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4428 Valid, 13906 Invalid, 8517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2387 Valid, 6120 Invalid, 10 Unknown, 0 Unchecked, 74.4s Time] [2022-11-16 12:13:37,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37525 states. [2022-11-16 12:13:39,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37525 to 32935. [2022-11-16 12:13:39,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32935 states, 23679 states have (on average 1.3911905063558427) internal successors, (32942), 23749 states have internal predecessors, (32942), 7561 states have call successors, (7561), 1692 states have call predecessors, (7561), 1694 states have return successors, (7625), 7551 states have call predecessors, (7625), 7553 states have call successors, (7625) [2022-11-16 12:13:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32935 states to 32935 states and 48128 transitions. [2022-11-16 12:13:39,692 INFO L78 Accepts]: Start accepts. Automaton has 32935 states and 48128 transitions. Word has length 70 [2022-11-16 12:13:39,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:13:39,693 INFO L495 AbstractCegarLoop]: Abstraction has 32935 states and 48128 transitions. [2022-11-16 12:13:39,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:13:39,693 INFO L276 IsEmpty]: Start isEmpty. Operand 32935 states and 48128 transitions. [2022-11-16 12:13:39,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-16 12:13:39,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:13:39,699 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 12:13:39,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:13:39,699 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:13:39,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:13:39,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1297556308, now seen corresponding path program 1 times [2022-11-16 12:13:39,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:13:39,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729592108] [2022-11-16 12:13:39,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:13:39,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:13:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:40,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:13:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:40,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:13:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:40,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:13:40,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:41,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:13:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:41,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:13:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:13:41,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:41,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:13:41,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:13:41,298 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:13:41,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:13:41,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729592108] [2022-11-16 12:13:41,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729592108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:13:41,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:13:41,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:13:41,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88724090] [2022-11-16 12:13:41,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:13:41,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:13:41,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:13:41,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:13:41,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:13:41,302 INFO L87 Difference]: Start difference. First operand 32935 states and 48128 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:13:43,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:45,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:47,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:54,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:13:56,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:03,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:16,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:19,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:31,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:33,145 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 [] [2022-11-16 12:14:34,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:14:34,985 INFO L93 Difference]: Finished difference Result 72526 states and 106778 transitions. [2022-11-16 12:14:34,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:14:34,986 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 67 [2022-11-16 12:14:34,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:14:35,215 INFO L225 Difference]: With dead ends: 72526 [2022-11-16 12:14:35,215 INFO L226 Difference]: Without dead ends: 39602 [2022-11-16 12:14:35,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:14:35,344 INFO L413 NwaCegarLoop]: 3107 mSDtfsCounter, 4653 mSDsluCounter, 4411 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 2730 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4987 SdHoareTripleChecker+Valid, 7518 SdHoareTripleChecker+Invalid, 5815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2730 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:14:35,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4987 Valid, 7518 Invalid, 5815 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2730 Valid, 3075 Invalid, 10 Unknown, 0 Unchecked, 51.4s Time] [2022-11-16 12:14:35,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39602 states. [2022-11-16 12:14:38,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39602 to 35162. [2022-11-16 12:14:38,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35162 states, 25299 states have (on average 1.38606269022491) internal successors, (35066), 25375 states have internal predecessors, (35066), 7875 states have call successors, (7875), 1978 states have call predecessors, (7875), 1987 states have return successors, (7955), 7866 states have call predecessors, (7955), 7867 states have call successors, (7955) [2022-11-16 12:14:38,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35162 states to 35162 states and 50896 transitions. [2022-11-16 12:14:38,460 INFO L78 Accepts]: Start accepts. Automaton has 35162 states and 50896 transitions. Word has length 67 [2022-11-16 12:14:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:14:38,462 INFO L495 AbstractCegarLoop]: Abstraction has 35162 states and 50896 transitions. [2022-11-16 12:14:38,463 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:14:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 35162 states and 50896 transitions. [2022-11-16 12:14:38,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-16 12:14:38,467 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:14:38,468 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 12:14:38,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:14:38,468 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:14:38,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:14:38,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1568468073, now seen corresponding path program 1 times [2022-11-16 12:14:38,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:14:38,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424145440] [2022-11-16 12:14:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:14:38,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:14:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:14:39,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:39,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:14:39,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:39,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:14:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:39,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:14:39,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:39,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:14:39,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:14:39,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:39,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:14:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:14:40,019 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:14:40,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:14:40,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424145440] [2022-11-16 12:14:40,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424145440] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:14:40,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:14:40,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:14:40,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146057893] [2022-11-16 12:14:40,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:14:40,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:14:40,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:14:40,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:14:40,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:14:40,022 INFO L87 Difference]: Start difference. First operand 35162 states and 50896 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:14:42,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:44,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:46,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:52,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:54,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:56,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:14:59,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:06,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:16,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:19,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:32,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:34,371 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 [] [2022-11-16 12:15:35,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:15:35,972 INFO L93 Difference]: Finished difference Result 74715 states and 109416 transitions. [2022-11-16 12:15:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:15:35,973 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2022-11-16 12:15:35,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:15:36,190 INFO L225 Difference]: With dead ends: 74715 [2022-11-16 12:15:36,191 INFO L226 Difference]: Without dead ends: 39571 [2022-11-16 12:15:36,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:15:36,310 INFO L413 NwaCegarLoop]: 3053 mSDtfsCounter, 4999 mSDsluCounter, 3808 mSDsCounter, 0 mSdLazyCounter, 2726 mSolverCounterSat, 2624 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5436 SdHoareTripleChecker+Valid, 6861 SdHoareTripleChecker+Invalid, 5361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2624 IncrementalHoareTripleChecker+Valid, 2726 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:15:36,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5436 Valid, 6861 Invalid, 5361 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2624 Valid, 2726 Invalid, 11 Unknown, 0 Unchecked, 53.5s Time] [2022-11-16 12:15:36,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39571 states. [2022-11-16 12:15:38,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39571 to 35162. [2022-11-16 12:15:38,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35162 states, 25303 states have (on average 1.3862387859147136) internal successors, (35076), 25377 states have internal predecessors, (35076), 7864 states have call successors, (7864), 1986 states have call predecessors, (7864), 1994 states have return successors, (7944), 7856 states have call predecessors, (7944), 7856 states have call successors, (7944) [2022-11-16 12:15:38,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35162 states to 35162 states and 50884 transitions. [2022-11-16 12:15:38,874 INFO L78 Accepts]: Start accepts. Automaton has 35162 states and 50884 transitions. Word has length 68 [2022-11-16 12:15:38,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:15:38,875 INFO L495 AbstractCegarLoop]: Abstraction has 35162 states and 50884 transitions. [2022-11-16 12:15:38,875 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:15:38,875 INFO L276 IsEmpty]: Start isEmpty. Operand 35162 states and 50884 transitions. [2022-11-16 12:15:38,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-16 12:15:38,878 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:15:38,878 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 12:15:38,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:15:38,878 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:15:38,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:15:38,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1376803063, now seen corresponding path program 1 times [2022-11-16 12:15:38,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:15:38,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852096188] [2022-11-16 12:15:38,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:15:38,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:15:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:39,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:15:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:15:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:39,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:15:39,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:39,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:15:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:39,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:15:39,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:40,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:15:40,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:15:40,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:15:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:15:40,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:15:40,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852096188] [2022-11-16 12:15:40,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852096188] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:15:40,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:15:40,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:15:40,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860698706] [2022-11-16 12:15:40,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:15:40,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:15:40,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:15:40,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:15:40,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:15:40,232 INFO L87 Difference]: Start difference. First operand 35162 states and 50884 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:15:42,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:44,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:46,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:48,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:56,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:15:59,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:06,789 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:22,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:25,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:43,471 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:45,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:47,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:49,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:16:49,633 INFO L93 Difference]: Finished difference Result 39551 states and 58503 transitions. [2022-11-16 12:16:49,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:16:49,639 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 69 [2022-11-16 12:16:49,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:16:49,833 INFO L225 Difference]: With dead ends: 39551 [2022-11-16 12:16:49,833 INFO L226 Difference]: Without dead ends: 39548 [2022-11-16 12:16:49,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:16:49,857 INFO L413 NwaCegarLoop]: 3054 mSDtfsCounter, 4509 mSDsluCounter, 5006 mSDsCounter, 0 mSdLazyCounter, 4408 mSolverCounterSat, 1889 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 6309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1889 IncrementalHoareTripleChecker+Valid, 4408 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:16:49,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4944 Valid, 8060 Invalid, 6309 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1889 Valid, 4408 Invalid, 12 Unknown, 0 Unchecked, 66.9s Time] [2022-11-16 12:16:49,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39548 states. [2022-11-16 12:16:52,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39548 to 35167. [2022-11-16 12:16:52,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35167 states, 25307 states have (on average 1.386138222626151) internal successors, (35079), 25380 states have internal predecessors, (35079), 7863 states have call successors, (7863), 1988 states have call predecessors, (7863), 1996 states have return successors, (7944), 7856 states have call predecessors, (7944), 7856 states have call successors, (7944) [2022-11-16 12:16:52,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35167 states to 35167 states and 50886 transitions. [2022-11-16 12:16:52,474 INFO L78 Accepts]: Start accepts. Automaton has 35167 states and 50886 transitions. Word has length 69 [2022-11-16 12:16:52,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:16:52,476 INFO L495 AbstractCegarLoop]: Abstraction has 35167 states and 50886 transitions. [2022-11-16 12:16:52,476 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:16:52,477 INFO L276 IsEmpty]: Start isEmpty. Operand 35167 states and 50886 transitions. [2022-11-16 12:16:52,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-16 12:16:52,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:16:52,480 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-16 12:16:52,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:16:52,480 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:16:52,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:16:52,481 INFO L85 PathProgramCache]: Analyzing trace with hash -269840084, now seen corresponding path program 1 times [2022-11-16 12:16:52,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:16:52,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377831890] [2022-11-16 12:16:52,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:16:52,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:16:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:16:53,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:16:53,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-16 12:16:53,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-11-16 12:16:53,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-16 12:16:53,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-16 12:16:53,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:16:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:16:53,816 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 12:16:53,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:16:53,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377831890] [2022-11-16 12:16:53,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377831890] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:16:53,817 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:16:53,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:16:53,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289458875] [2022-11-16 12:16:53,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:16:53,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:16:53,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:16:53,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:16:53,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:16:53,820 INFO L87 Difference]: Start difference. First operand 35167 states and 50886 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, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:16:55,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:16:58,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:00,104 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:06,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:17:09,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []