./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.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_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/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_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/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_e754aeb9-86c4-4415-817a-1814cdad1d5c/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 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 --- 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 11:54:44,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:54:44,286 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:54:44,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:54:44,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:54:44,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:54:44,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:54:44,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:54:44,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:54:44,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:54:44,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:54:44,323 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:54:44,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:54:44,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:54:44,325 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:54:44,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:54:44,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:54:44,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:54:44,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:54:44,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:54:44,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:54:44,341 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:54:44,342 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:54:44,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:54:44,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:54:44,356 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:54:44,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:54:44,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:54:44,358 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:54:44,359 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:54:44,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:54:44,360 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:54:44,361 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:54:44,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:54:44,364 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:54:44,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:54:44,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:54:44,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:54:44,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:54:44,370 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:54:44,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:54:44,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 11:54:44,405 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:54:44,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:54:44,406 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:54:44,406 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:54:44,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:54:44,407 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:54:44,408 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:54:44,408 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:54:44,408 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:54:44,409 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:54:44,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:54:44,410 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:54:44,410 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 11:54:44,410 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:54:44,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 11:54:44,411 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 11:54:44,411 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:54:44,411 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 11:54:44,411 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:54:44,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:54:44,412 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:54:44,412 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:44,412 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:54:44,412 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:54:44,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 11:54:44,413 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:54:44,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:54:44,413 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 11:54:44,414 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 11:54:44,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 11:54:44,414 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_e754aeb9-86c4-4415-817a-1814cdad1d5c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19525e6f83ed492183d9a21eaa90e9685989ff90c55473d8827091d7561f2601 [2022-11-16 11:54:44,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:54:44,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:54:44,730 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:54:44,732 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:54:44,736 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:54:44,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-11-16 11:54:44,803 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/data/45c7abfb6/0687c37cb1214df2bad1c2c084c64854/FLAG67a79e146 [2022-11-16 11:54:45,659 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:54:45,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-11-16 11:54:45,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/data/45c7abfb6/0687c37cb1214df2bad1c2c084c64854/FLAG67a79e146 [2022-11-16 11:54:46,139 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/data/45c7abfb6/0687c37cb1214df2bad1c2c084c64854 [2022-11-16 11:54:46,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:54:46,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:54:46,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:46,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:54:46,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:54:46,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:46" (1/1) ... [2022-11-16 11:54:46,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@147ac89b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:46, skipping insertion in model container [2022-11-16 11:54:46,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:54:46" (1/1) ... [2022-11-16 11:54:46,161 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:54:46,296 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:54:48,367 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_e754aeb9-86c4-4415-817a-1814cdad1d5c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2022-11-16 11:54:48,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:48,609 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:54:49,126 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_e754aeb9-86c4-4415-817a-1814cdad1d5c/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i[265597,265610] [2022-11-16 11:54:49,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:54:49,280 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:54:49,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49 WrapperNode [2022-11-16 11:54:49,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:54:49,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:49,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:54:49,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:54:49,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,559 INFO L138 Inliner]: procedures = 389, calls = 2943, calls flagged for inlining = 156, calls inlined = 64, statements flattened = 3346 [2022-11-16 11:54:49,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:54:49,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:54:49,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:54:49,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:54:49,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,723 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,837 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:54:49,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:54:49,838 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:54:49,838 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:54:49,846 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (1/1) ... [2022-11-16 11:54:49,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:54:49,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:54:49,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:54:49,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e754aeb9-86c4-4415-817a-1814cdad1d5c/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:54:49,930 INFO L130 BoogieDeclarations]: Found specification of procedure smi_stats_proc_open [2022-11-16 11:54:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_stats_proc_open [2022-11-16 11:54:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-11-16 11:54:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-11-16 11:54:49,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 11:54:49,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 11:54:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_poll [2022-11-16 11:54:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_poll [2022-11-16 11:54:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure format_lan_msg [2022-11-16 11:54:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure format_lan_msg [2022-11-16 11:54:49,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 11:54:49,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-16 11:54:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure copy_event_into_recv_msg [2022-11-16 11:54:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_event_into_recv_msg [2022-11-16 11:54:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_panic_request_and_wait [2022-11-16 11:54:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_panic_request_and_wait [2022-11-16 11:54:49,933 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 11:54:49,933 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 11:54:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-16 11:54:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-16 11:54:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure remove_proc_entry [2022-11-16 11:54:49,934 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_proc_entry [2022-11-16 11:54:49,934 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2022-11-16 11:54:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2022-11-16 11:54:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 11:54:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 11:54:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure intf_next_seq [2022-11-16 11:54:49,935 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_next_seq [2022-11-16 11:54:49,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:54:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-16 11:54:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_cmd_rcvrs_mutex_of_ipmi_smi [2022-11-16 11:54:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure PDE [2022-11-16 11:54:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure PDE [2022-11-16 11:54:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 11:54:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 11:54:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 11:54:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 11:54:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure i_ipmi_request [2022-11-16 11:54:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure i_ipmi_request [2022-11-16 11:54:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 11:54:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure free_smi_msg_list [2022-11-16 11:54:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure free_smi_msg_list [2022-11-16 11:54:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 11:54:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-11-16 11:54:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-11-16 11:54:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 11:54:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 11:54:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 11:54:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure maintenance_mode_update [2022-11-16 11:54:49,939 INFO L138 BoogieDeclarations]: Found implementation of procedure maintenance_mode_update [2022-11-16 11:54:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-16 11:54:49,940 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-16 11:54:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-11-16 11:54:49,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-11-16 11:54:49,940 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2022-11-16 11:54:49,941 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2022-11-16 11:54:49,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 11:54:49,942 INFO L130 BoogieDeclarations]: Found specification of procedure smi_version_proc_open [2022-11-16 11:54:49,943 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_version_proc_open [2022-11-16 11:54:49,943 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-11-16 11:54:49,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-11-16 11:54:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:54:49,944 INFO L130 BoogieDeclarations]: Found specification of procedure send_channel_info_cmd [2022-11-16 11:54:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure send_channel_info_cmd [2022-11-16 11:54:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 11:54:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 11:54:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:54:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 11:54:49,945 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_smi_msg [2022-11-16 11:54:49,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_smi_msg [2022-11-16 11:54:49,946 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-16 11:54:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-16 11:54:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-11-16 11:54:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-11-16 11:54:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure handle_new_recv_msgs [2022-11-16 11:54:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_new_recv_msgs [2022-11-16 11:54:49,947 INFO L130 BoogieDeclarations]: Found specification of procedure is_lan_addr [2022-11-16 11:54:49,947 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lan_addr [2022-11-16 11:54:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-16 11:54:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-16 11:54:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure intf_free [2022-11-16 11:54:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_free [2022-11-16 11:54:49,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:54:49,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:54:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure __cmpxchg_wrong_size [2022-11-16 11:54:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-11-16 11:54:49,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-11-16 11:54:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 11:54:49,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 11:54:49,950 INFO L130 BoogieDeclarations]: Found specification of procedure intf_find_seq [2022-11-16 11:54:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure intf_find_seq [2022-11-16 11:54:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 11:54:49,951 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 11:54:49,951 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 11:54:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 11:54:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 11:54:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 11:54:49,953 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_smi_msg [2022-11-16 11:54:49,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_smi_msg [2022-11-16 11:54:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-11-16 11:54:49,954 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-11-16 11:54:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:54:49,954 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 11:54:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 11:54:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure proc_mkdir [2022-11-16 11:54:49,955 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_mkdir [2022-11-16 11:54:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 11:54:49,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 11:54:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure find_cmd_rcvr [2022-11-16 11:54:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure find_cmd_rcvr [2022-11-16 11:54:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 11:54:49,956 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 11:54:49,956 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_init_msghandler [2022-11-16 11:54:49,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_init_msghandler [2022-11-16 11:54:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-16 11:54:49,957 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-16 11:54:49,957 INFO L130 BoogieDeclarations]: Found specification of procedure clean_up_interface_data [2022-11-16 11:54:49,958 INFO L138 BoogieDeclarations]: Found implementation of procedure clean_up_interface_data [2022-11-16 11:54:49,959 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_alloc_recv_msg [2022-11-16 11:54:49,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_alloc_recv_msg [2022-11-16 11:54:49,961 INFO L130 BoogieDeclarations]: Found specification of procedure single_open [2022-11-16 11:54:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure single_open [2022-11-16 11:54:49,962 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-11-16 11:54:49,962 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-11-16 11:54:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_rcu [2022-11-16 11:54:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_rcu [2022-11-16 11:54:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 11:54:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 11:54:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure smi_ipmb_proc_open [2022-11-16 11:54:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure smi_ipmb_proc_open [2022-11-16 11:54:49,970 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 11:54:49,970 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 11:54:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:54:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 11:54:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 11:54:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_addr [2022-11-16 11:54:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_addr [2022-11-16 11:54:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure is_ipmb_bcast_addr [2022-11-16 11:54:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure is_ipmb_bcast_addr [2022-11-16 11:54:49,971 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_cpu_idle [2022-11-16 11:54:49,971 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_cpu_idle [2022-11-16 11:54:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 11:54:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 11:54:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure format_ipmb_msg [2022-11-16 11:54:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure format_ipmb_msg [2022-11-16 11:54:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-11-16 11:54:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-11-16 11:54:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure free_recv_msg_list [2022-11-16 11:54:49,972 INFO L138 BoogieDeclarations]: Found implementation of procedure free_recv_msg_list [2022-11-16 11:54:49,972 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2022-11-16 11:54:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2022-11-16 11:54:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-11-16 11:54:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-11-16 11:54:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 11:54:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 11:54:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure ipmb_checksum [2022-11-16 11:54:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmb_checksum [2022-11-16 11:54:49,973 INFO L130 BoogieDeclarations]: Found specification of procedure deliver_response [2022-11-16 11:54:49,973 INFO L138 BoogieDeclarations]: Found implementation of procedure deliver_response [2022-11-16 11:54:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2022-11-16 11:54:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2022-11-16 11:54:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:54:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2022-11-16 11:54:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2022-11-16 11:54:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-11-16 11:54:49,974 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-11-16 11:54:49,974 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-11-16 11:54:50,621 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:54:50,624 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:54:59,451 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:54:59,468 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:54:59,468 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:54:59,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:59 BoogieIcfgContainer [2022-11-16 11:54:59,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:54:59,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:54:59,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:54:59,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:54:59,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:54:46" (1/3) ... [2022-11-16 11:54:59,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b462f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:59, skipping insertion in model container [2022-11-16 11:54:59,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:54:49" (2/3) ... [2022-11-16 11:54:59,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b462f57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:54:59, skipping insertion in model container [2022-11-16 11:54:59,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:54:59" (3/3) ... [2022-11-16 11:54:59,482 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--char--ipmi--ipmi_msghandler.ko-main.cil.out.i [2022-11-16 11:54:59,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:54:59,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 11:54:59,605 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:54:59,612 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;@442e9dd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:54:59,612 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 11:54:59,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 1238 states, 858 states have (on average 1.3694638694638694) internal successors, (1175), 908 states have internal predecessors, (1175), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) [2022-11-16 11:54:59,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 11:54:59,630 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:54:59,631 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:54:59,631 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:54:59,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:54:59,636 INFO L85 PathProgramCache]: Analyzing trace with hash 234520868, now seen corresponding path program 1 times [2022-11-16 11:54:59,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:54:59,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051789092] [2022-11-16 11:54:59,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:54:59,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:54:59,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:00,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:00,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:00,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051789092] [2022-11-16 11:55:00,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051789092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:00,330 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:00,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:55:00,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417960043] [2022-11-16 11:55:00,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:00,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:55:00,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:00,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:55:00,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:00,382 INFO L87 Difference]: Start difference. First operand has 1238 states, 858 states have (on average 1.3694638694638694) internal successors, (1175), 908 states have internal predecessors, (1175), 304 states have call successors, (304), 74 states have call predecessors, (304), 74 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:00,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:55:00,911 INFO L93 Difference]: Finished difference Result 3639 states and 5358 transitions. [2022-11-16 11:55:00,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:55:00,913 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-16 11:55:00,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:55:00,960 INFO L225 Difference]: With dead ends: 3639 [2022-11-16 11:55:00,961 INFO L226 Difference]: Without dead ends: 2400 [2022-11-16 11:55:00,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:55:00,985 INFO L413 NwaCegarLoop]: 2835 mSDtfsCounter, 1704 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 4564 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:55:00,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1704 Valid, 4564 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:55:01,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2400 states. [2022-11-16 11:55:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2400 to 2396. [2022-11-16 11:55:01,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2396 states, 1663 states have (on average 1.3668069753457606) internal successors, (2273), 1750 states have internal predecessors, (2273), 590 states have call successors, (590), 143 states have call predecessors, (590), 142 states have return successors, (580), 568 states have call predecessors, (580), 580 states have call successors, (580) [2022-11-16 11:55:01,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2396 states to 2396 states and 3443 transitions. [2022-11-16 11:55:01,199 INFO L78 Accepts]: Start accepts. Automaton has 2396 states and 3443 transitions. Word has length 16 [2022-11-16 11:55:01,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:55:01,200 INFO L495 AbstractCegarLoop]: Abstraction has 2396 states and 3443 transitions. [2022-11-16 11:55:01,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:55:01,200 INFO L276 IsEmpty]: Start isEmpty. Operand 2396 states and 3443 transitions. [2022-11-16 11:55:01,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-16 11:55:01,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:55:01,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:01,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:55:01,210 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:55:01,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:01,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1563706384, now seen corresponding path program 1 times [2022-11-16 11:55:01,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:01,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19380674] [2022-11-16 11:55:01,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:01,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:01,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:01,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:55:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:01,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:01,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:01,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19380674] [2022-11-16 11:55:01,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19380674] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:01,727 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:01,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:55:01,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310981622] [2022-11-16 11:55:01,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:01,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 11:55:01,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:01,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 11:55:01,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 11:55:01,733 INFO L87 Difference]: Start difference. First operand 2396 states and 3443 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:55:16,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:23,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:24,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:28,229 WARN L539 Checker$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 11:55:30,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:32,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:33,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:55:33,081 INFO L93 Difference]: Finished difference Result 7431 states and 10836 transitions. [2022-11-16 11:55:33,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 11:55:33,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2022-11-16 11:55:33,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:55:33,113 INFO L225 Difference]: With dead ends: 7431 [2022-11-16 11:55:33,113 INFO L226 Difference]: Without dead ends: 5038 [2022-11-16 11:55:33,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:55:33,126 INFO L413 NwaCegarLoop]: 304 mSDtfsCounter, 3344 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 8238 mSolverCounterSat, 1780 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3664 SdHoareTripleChecker+Valid, 1006 SdHoareTripleChecker+Invalid, 10019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1780 IncrementalHoareTripleChecker+Valid, 8238 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:55:33,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3664 Valid, 1006 Invalid, 10019 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1780 Valid, 8238 Invalid, 1 Unknown, 0 Unchecked, 30.6s Time] [2022-11-16 11:55:33,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5038 states. [2022-11-16 11:55:33,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5038 to 4730. [2022-11-16 11:55:33,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4730 states, 3288 states have (on average 1.3670924574209247) internal successors, (4495), 3452 states have internal predecessors, (4495), 1159 states have call successors, (1159), 282 states have call predecessors, (1159), 282 states have return successors, (1154), 1125 states have call predecessors, (1154), 1149 states have call successors, (1154) [2022-11-16 11:55:33,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4730 states to 4730 states and 6808 transitions. [2022-11-16 11:55:33,491 INFO L78 Accepts]: Start accepts. Automaton has 4730 states and 6808 transitions. Word has length 23 [2022-11-16 11:55:33,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:55:33,492 INFO L495 AbstractCegarLoop]: Abstraction has 4730 states and 6808 transitions. [2022-11-16 11:55:33,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:55:33,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4730 states and 6808 transitions. [2022-11-16 11:55:33,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 11:55:33,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:55:33,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:33,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:55:33,494 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:55:33,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:33,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1405927828, now seen corresponding path program 1 times [2022-11-16 11:55:33,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:33,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699356590] [2022-11-16 11:55:33,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:33,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:33,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:33,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:55:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:55:33,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:33,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699356590] [2022-11-16 11:55:33,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699356590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:33,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:33,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 11:55:33,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61857090] [2022-11-16 11:55:33,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:33,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:55:33,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:33,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:55:33,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:55:33,792 INFO L87 Difference]: Start difference. First operand 4730 states and 6808 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:55:41,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:45,357 WARN L539 Checker$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 11:55:47,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:47,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:55:47,390 INFO L93 Difference]: Finished difference Result 9557 states and 13895 transitions. [2022-11-16 11:55:47,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:55:47,391 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-16 11:55:47,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:55:47,418 INFO L225 Difference]: With dead ends: 9557 [2022-11-16 11:55:47,419 INFO L226 Difference]: Without dead ends: 4830 [2022-11-16 11:55:47,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-16 11:55:47,440 INFO L413 NwaCegarLoop]: 1399 mSDtfsCounter, 2150 mSDsluCounter, 1337 mSDsCounter, 0 mSdLazyCounter, 2262 mSolverCounterSat, 575 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2336 SdHoareTripleChecker+Valid, 2736 SdHoareTripleChecker+Invalid, 2839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 2262 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:55:47,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2336 Valid, 2736 Invalid, 2839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 2262 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-11-16 11:55:47,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4830 states. [2022-11-16 11:55:47,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4830 to 4542. [2022-11-16 11:55:47,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 3142 states have (on average 1.3637810311903247) internal successors, (4285), 3302 states have internal predecessors, (4285), 1125 states have call successors, (1125), 274 states have call predecessors, (1125), 274 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:55:47,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6529 transitions. [2022-11-16 11:55:47,736 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6529 transitions. Word has length 25 [2022-11-16 11:55:47,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:55:47,737 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 6529 transitions. [2022-11-16 11:55:47,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:55:47,737 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6529 transitions. [2022-11-16 11:55:47,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 11:55:47,740 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:55:47,740 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:47,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:55:47,741 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:55:47,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:47,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1552706417, now seen corresponding path program 1 times [2022-11-16 11:55:47,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:47,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757339279] [2022-11-16 11:55:47,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:47,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:47,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:48,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:55:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:55:48,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:48,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757339279] [2022-11-16 11:55:48,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757339279] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:48,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:48,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:55:48,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165088838] [2022-11-16 11:55:48,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:48,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:55:48,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:48,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:55:48,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:55:48,037 INFO L87 Difference]: Start difference. First operand 4542 states and 6529 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:55:53,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:57,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:58,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:55:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:55:58,868 INFO L93 Difference]: Finished difference Result 4855 states and 7100 transitions. [2022-11-16 11:55:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 11:55:58,869 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2022-11-16 11:55:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:55:58,894 INFO L225 Difference]: With dead ends: 4855 [2022-11-16 11:55:58,894 INFO L226 Difference]: Without dead ends: 4851 [2022-11-16 11:55:58,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:55:58,898 INFO L413 NwaCegarLoop]: 1240 mSDtfsCounter, 1893 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 535 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2053 SdHoareTripleChecker+Valid, 1436 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:55:58,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2053 Valid, 1436 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [535 Valid, 1480 Invalid, 1 Unknown, 0 Unchecked, 10.5s Time] [2022-11-16 11:55:58,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4851 states. [2022-11-16 11:55:59,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4851 to 4564. [2022-11-16 11:55:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4564 states, 3158 states have (on average 1.3603546548448384) internal successors, (4296), 3316 states have internal predecessors, (4296), 1123 states have call successors, (1123), 282 states have call predecessors, (1123), 282 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:55:59,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4564 states to 4564 states and 6538 transitions. [2022-11-16 11:55:59,315 INFO L78 Accepts]: Start accepts. Automaton has 4564 states and 6538 transitions. Word has length 35 [2022-11-16 11:55:59,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:55:59,315 INFO L495 AbstractCegarLoop]: Abstraction has 4564 states and 6538 transitions. [2022-11-16 11:55:59,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:55:59,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4564 states and 6538 transitions. [2022-11-16 11:55:59,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-16 11:55:59,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:55:59,319 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:55:59,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:55:59,319 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:55:59,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:55:59,320 INFO L85 PathProgramCache]: Analyzing trace with hash -889912787, now seen corresponding path program 1 times [2022-11-16 11:55:59,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:55:59,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [790006312] [2022-11-16 11:55:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:55:59,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:55:59,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:59,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:55:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:55:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:55:59,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:55:59,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [790006312] [2022-11-16 11:55:59,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [790006312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:55:59,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:55:59,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:55:59,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731744427] [2022-11-16 11:55:59,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:55:59,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:55:59,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:55:59,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:55:59,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:55:59,518 INFO L87 Difference]: Start difference. First operand 4564 states and 6538 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:05,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:07,991 WARN L539 Checker$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 11:56:10,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:12,736 WARN L539 Checker$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 11:56:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:12,989 INFO L93 Difference]: Finished difference Result 4851 states and 7092 transitions. [2022-11-16 11:56:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:56:12,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-16 11:56:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:13,016 INFO L225 Difference]: With dead ends: 4851 [2022-11-16 11:56:13,016 INFO L226 Difference]: Without dead ends: 4848 [2022-11-16 11:56:13,019 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:56:13,020 INFO L413 NwaCegarLoop]: 1242 mSDtfsCounter, 1912 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 1469 mSolverCounterSat, 509 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2095 SdHoareTripleChecker+Valid, 1420 SdHoareTripleChecker+Invalid, 1980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 509 IncrementalHoareTripleChecker+Valid, 1469 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:13,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2095 Valid, 1420 Invalid, 1980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [509 Valid, 1469 Invalid, 2 Unknown, 0 Unchecked, 13.1s Time] [2022-11-16 11:56:13,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4848 states. [2022-11-16 11:56:13,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4848 to 4563. [2022-11-16 11:56:13,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4563 states, 3158 states have (on average 1.3600379987333755) internal successors, (4295), 3315 states have internal predecessors, (4295), 1122 states have call successors, (1122), 282 states have call predecessors, (1122), 282 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:56:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4563 states to 4563 states and 6536 transitions. [2022-11-16 11:56:13,388 INFO L78 Accepts]: Start accepts. Automaton has 4563 states and 6536 transitions. Word has length 36 [2022-11-16 11:56:13,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:13,389 INFO L495 AbstractCegarLoop]: Abstraction has 4563 states and 6536 transitions. [2022-11-16 11:56:13,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 4563 states and 6536 transitions. [2022-11-16 11:56:13,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-11-16 11:56:13,393 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:13,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:13,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:56:13,394 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:13,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:13,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1818141870, now seen corresponding path program 1 times [2022-11-16 11:56:13,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:13,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1407554923] [2022-11-16 11:56:13,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:13,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:13,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:56:13,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:13,594 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:56:13,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:13,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1407554923] [2022-11-16 11:56:13,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1407554923] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:13,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:13,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:56:13,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959964492] [2022-11-16 11:56:13,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:13,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:56:13,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:13,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:56:13,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:56:13,597 INFO L87 Difference]: Start difference. First operand 4563 states and 6536 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:20,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:22,914 WARN L539 Checker$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 11:56:23,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:23,144 INFO L93 Difference]: Finished difference Result 4850 states and 7090 transitions. [2022-11-16 11:56:23,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:56:23,144 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2022-11-16 11:56:23,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:23,170 INFO L225 Difference]: With dead ends: 4850 [2022-11-16 11:56:23,170 INFO L226 Difference]: Without dead ends: 4847 [2022-11-16 11:56:23,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:56:23,174 INFO L413 NwaCegarLoop]: 1240 mSDtfsCounter, 1910 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 506 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2093 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 1977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:23,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2093 Valid, 1417 Invalid, 1977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1470 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2022-11-16 11:56:23,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4847 states. [2022-11-16 11:56:23,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4847 to 4562. [2022-11-16 11:56:23,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4562 states, 3158 states have (on average 1.3597213426219126) internal successors, (4294), 3314 states have internal predecessors, (4294), 1121 states have call successors, (1121), 282 states have call predecessors, (1121), 282 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:56:23,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4562 states to 4562 states and 6534 transitions. [2022-11-16 11:56:23,549 INFO L78 Accepts]: Start accepts. Automaton has 4562 states and 6534 transitions. Word has length 37 [2022-11-16 11:56:23,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:23,550 INFO L495 AbstractCegarLoop]: Abstraction has 4562 states and 6534 transitions. [2022-11-16 11:56:23,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:23,551 INFO L276 IsEmpty]: Start isEmpty. Operand 4562 states and 6534 transitions. [2022-11-16 11:56:23,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-16 11:56:23,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:23,552 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:23,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:56:23,553 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:23,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:23,553 INFO L85 PathProgramCache]: Analyzing trace with hash -528467504, now seen corresponding path program 1 times [2022-11-16 11:56:23,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:23,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998293309] [2022-11-16 11:56:23,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:23,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:23,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:56:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:23,737 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:56:23,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:23,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998293309] [2022-11-16 11:56:23,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998293309] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:23,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:23,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:56:23,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702520484] [2022-11-16 11:56:23,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:23,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:56:23,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:23,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:56:23,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:56:23,741 INFO L87 Difference]: Start difference. First operand 4562 states and 6534 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:30,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:34,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:34,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:34,330 INFO L93 Difference]: Finished difference Result 4849 states and 7088 transitions. [2022-11-16 11:56:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:56:34,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2022-11-16 11:56:34,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:34,352 INFO L225 Difference]: With dead ends: 4849 [2022-11-16 11:56:34,353 INFO L226 Difference]: Without dead ends: 4846 [2022-11-16 11:56:34,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:56:34,357 INFO L413 NwaCegarLoop]: 1243 mSDtfsCounter, 1906 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 1474 mSolverCounterSat, 507 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 507 IncrementalHoareTripleChecker+Valid, 1474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:34,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 1419 Invalid, 1983 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [507 Valid, 1474 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2022-11-16 11:56:34,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4846 states. [2022-11-16 11:56:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4846 to 4561. [2022-11-16 11:56:34,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4561 states, 3158 states have (on average 1.3594046865104497) internal successors, (4293), 3313 states have internal predecessors, (4293), 1120 states have call successors, (1120), 282 states have call predecessors, (1120), 282 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:56:34,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4561 states to 4561 states and 6532 transitions. [2022-11-16 11:56:34,761 INFO L78 Accepts]: Start accepts. Automaton has 4561 states and 6532 transitions. Word has length 38 [2022-11-16 11:56:34,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:34,762 INFO L495 AbstractCegarLoop]: Abstraction has 4561 states and 6532 transitions. [2022-11-16 11:56:34,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:34,762 INFO L276 IsEmpty]: Start isEmpty. Operand 4561 states and 6532 transitions. [2022-11-16 11:56:34,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 11:56:34,764 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:34,764 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:34,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 11:56:34,765 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:34,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:34,765 INFO L85 PathProgramCache]: Analyzing trace with hash 796737045, now seen corresponding path program 1 times [2022-11-16 11:56:34,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:34,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016313117] [2022-11-16 11:56:34,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:34,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:34,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:56:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:34,942 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:56:34,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:34,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016313117] [2022-11-16 11:56:34,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016313117] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:34,943 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:34,943 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:56:34,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147952224] [2022-11-16 11:56:34,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:34,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:56:34,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:34,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:56:34,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:56:34,945 INFO L87 Difference]: Start difference. First operand 4561 states and 6532 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:40,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:43,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:45,398 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 11:56:45,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:45,686 INFO L93 Difference]: Finished difference Result 4848 states and 7086 transitions. [2022-11-16 11:56:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:56:45,687 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-16 11:56:45,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:45,705 INFO L225 Difference]: With dead ends: 4848 [2022-11-16 11:56:45,705 INFO L226 Difference]: Without dead ends: 4845 [2022-11-16 11:56:45,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:56:45,708 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 1901 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 1470 mSolverCounterSat, 506 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2084 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 1978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 506 IncrementalHoareTripleChecker+Valid, 1470 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:45,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2084 Valid, 1414 Invalid, 1978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [506 Valid, 1470 Invalid, 2 Unknown, 0 Unchecked, 10.3s Time] [2022-11-16 11:56:45,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4845 states. [2022-11-16 11:56:46,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4845 to 4560. [2022-11-16 11:56:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4560 states, 3158 states have (on average 1.3590880303989867) internal successors, (4292), 3312 states have internal predecessors, (4292), 1119 states have call successors, (1119), 282 states have call predecessors, (1119), 282 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:56:46,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4560 states to 4560 states and 6530 transitions. [2022-11-16 11:56:46,088 INFO L78 Accepts]: Start accepts. Automaton has 4560 states and 6530 transitions. Word has length 39 [2022-11-16 11:56:46,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:46,089 INFO L495 AbstractCegarLoop]: Abstraction has 4560 states and 6530 transitions. [2022-11-16 11:56:46,089 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:46,089 INFO L276 IsEmpty]: Start isEmpty. Operand 4560 states and 6530 transitions. [2022-11-16 11:56:46,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-16 11:56:46,091 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:46,092 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:46,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 11:56:46,092 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:46,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:46,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1071590029, now seen corresponding path program 1 times [2022-11-16 11:56:46,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:46,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934021652] [2022-11-16 11:56:46,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:46,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:56:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:46,319 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:56:46,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:46,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934021652] [2022-11-16 11:56:46,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934021652] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:46,320 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:46,320 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:56:46,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943534634] [2022-11-16 11:56:46,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:46,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:56:46,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:46,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:56:46,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:56:46,323 INFO L87 Difference]: Start difference. First operand 4560 states and 6530 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:51,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:54,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:56:57,391 WARN L539 Checker$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 11:56:57,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:56:57,621 INFO L93 Difference]: Finished difference Result 4847 states and 7084 transitions. [2022-11-16 11:56:57,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:56:57,621 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-11-16 11:56:57,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:56:57,640 INFO L225 Difference]: With dead ends: 4847 [2022-11-16 11:56:57,640 INFO L226 Difference]: Without dead ends: 4844 [2022-11-16 11:56:57,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:56:57,644 INFO L413 NwaCegarLoop]: 1231 mSDtfsCounter, 1900 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 503 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-11-16 11:56:57,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2087 Valid, 1405 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1465 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2022-11-16 11:56:57,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4844 states. [2022-11-16 11:56:58,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4844 to 4559. [2022-11-16 11:56:58,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4559 states, 3158 states have (on average 1.3587713742875238) internal successors, (4291), 3311 states have internal predecessors, (4291), 1118 states have call successors, (1118), 282 states have call predecessors, (1118), 282 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:56:58,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4559 states to 4559 states and 6528 transitions. [2022-11-16 11:56:58,121 INFO L78 Accepts]: Start accepts. Automaton has 4559 states and 6528 transitions. Word has length 40 [2022-11-16 11:56:58,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:56:58,121 INFO L495 AbstractCegarLoop]: Abstraction has 4559 states and 6528 transitions. [2022-11-16 11:56:58,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:56:58,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4559 states and 6528 transitions. [2022-11-16 11:56:58,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-16 11:56:58,124 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:56:58,124 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:56:58,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 11:56:58,124 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:56:58,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:56:58,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1139817688, now seen corresponding path program 1 times [2022-11-16 11:56:58,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:56:58,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305274205] [2022-11-16 11:56:58,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:56:58,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:56:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:58,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:56:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:56:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:56:58,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:56:58,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305274205] [2022-11-16 11:56:58,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305274205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:56:58,287 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:56:58,287 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:56:58,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29276857] [2022-11-16 11:56:58,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:56:58,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:56:58,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:56:58,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:56:58,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:56:58,289 INFO L87 Difference]: Start difference. First operand 4559 states and 6528 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:57:04,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:07,385 WARN L539 Checker$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 11:57:09,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:09,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:57:09,393 INFO L93 Difference]: Finished difference Result 4846 states and 7082 transitions. [2022-11-16 11:57:09,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:57:09,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 41 [2022-11-16 11:57:09,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:57:09,449 INFO L225 Difference]: With dead ends: 4846 [2022-11-16 11:57:09,449 INFO L226 Difference]: Without dead ends: 4843 [2022-11-16 11:57:09,451 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:57:09,452 INFO L413 NwaCegarLoop]: 1232 mSDtfsCounter, 1895 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 1468 mSolverCounterSat, 502 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2080 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 1972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1468 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2022-11-16 11:57:09,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2080 Valid, 1407 Invalid, 1972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1468 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2022-11-16 11:57:09,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4843 states. [2022-11-16 11:57:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4843 to 4558. [2022-11-16 11:57:09,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4558 states, 3158 states have (on average 1.358454718176061) internal successors, (4290), 3310 states have internal predecessors, (4290), 1117 states have call successors, (1117), 282 states have call predecessors, (1117), 282 states have return successors, (1119), 1090 states have call predecessors, (1119), 1115 states have call successors, (1119) [2022-11-16 11:57:09,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4558 states to 4558 states and 6526 transitions. [2022-11-16 11:57:09,878 INFO L78 Accepts]: Start accepts. Automaton has 4558 states and 6526 transitions. Word has length 41 [2022-11-16 11:57:09,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:57:09,880 INFO L495 AbstractCegarLoop]: Abstraction has 4558 states and 6526 transitions. [2022-11-16 11:57:09,880 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:57:09,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4558 states and 6526 transitions. [2022-11-16 11:57:09,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-16 11:57:09,883 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:57:09,883 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:57:09,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 11:57:09,883 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:57:09,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:09,884 INFO L85 PathProgramCache]: Analyzing trace with hash 973985046, now seen corresponding path program 1 times [2022-11-16 11:57:09,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:09,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671950737] [2022-11-16 11:57:09,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:09,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:09,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:10,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:57:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-16 11:57:10,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:10,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671950737] [2022-11-16 11:57:10,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671950737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:10,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:10,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:57:10,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644338272] [2022-11-16 11:57:10,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:10,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:57:10,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:10,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:57:10,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:57:10,102 INFO L87 Difference]: Start difference. First operand 4558 states and 6526 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:57:16,076 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 11:57:19,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:20,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:21,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:22,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:57:22,100 INFO L93 Difference]: Finished difference Result 4845 states and 7080 transitions. [2022-11-16 11:57:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:57:22,101 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 42 [2022-11-16 11:57:22,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:57:22,121 INFO L225 Difference]: With dead ends: 4845 [2022-11-16 11:57:22,121 INFO L226 Difference]: Without dead ends: 4814 [2022-11-16 11:57:22,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:57:22,127 INFO L413 NwaCegarLoop]: 1229 mSDtfsCounter, 1892 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 1465 mSolverCounterSat, 503 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2078 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 1970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 503 IncrementalHoareTripleChecker+Valid, 1465 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:57:22,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2078 Valid, 1404 Invalid, 1970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [503 Valid, 1465 Invalid, 2 Unknown, 0 Unchecked, 11.5s Time] [2022-11-16 11:57:22,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4814 states. [2022-11-16 11:57:22,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4814 to 4529. [2022-11-16 11:57:22,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4529 states, 3135 states have (on average 1.3594896331738437) internal successors, (4262), 3286 states have internal predecessors, (4262), 1112 states have call successors, (1112), 281 states have call predecessors, (1112), 281 states have return successors, (1115), 1086 states have call predecessors, (1115), 1111 states have call successors, (1115) [2022-11-16 11:57:22,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 6489 transitions. [2022-11-16 11:57:22,661 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 6489 transitions. Word has length 42 [2022-11-16 11:57:22,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:57:22,661 INFO L495 AbstractCegarLoop]: Abstraction has 4529 states and 6489 transitions. [2022-11-16 11:57:22,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 11:57:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 6489 transitions. [2022-11-16 11:57:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-11-16 11:57:22,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:57:22,668 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:57:22,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 11:57:22,669 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:57:22,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:22,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1974483440, now seen corresponding path program 1 times [2022-11-16 11:57:22,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:22,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566555478] [2022-11-16 11:57:22,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:22,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:22,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-11-16 11:57:22,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:22,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 11:57:22,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:22,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-16 11:57:22,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:22,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-11-16 11:57:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:22,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:22,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:22,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:23,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-16 11:57:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:23,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2022-11-16 11:57:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:23,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-16 11:57:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-11-16 11:57:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:23,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-16 11:57:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:23,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-11-16 11:57:23,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-16 11:57:23,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:23,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566555478] [2022-11-16 11:57:23,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566555478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:23,085 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:23,085 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 11:57:23,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842167279] [2022-11-16 11:57:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:23,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 11:57:23,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:23,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 11:57:23,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 11:57:23,088 INFO L87 Difference]: Start difference. First operand 4529 states and 6489 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:57:32,094 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:39,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:41,052 WARN L539 Checker$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 11:57:43,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:57:45,683 WARN L539 Checker$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 11:57:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:57:45,914 INFO L93 Difference]: Finished difference Result 8393 states and 12533 transitions. [2022-11-16 11:57:45,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:57:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2022-11-16 11:57:45,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:57:45,931 INFO L225 Difference]: With dead ends: 8393 [2022-11-16 11:57:45,932 INFO L226 Difference]: Without dead ends: 3867 [2022-11-16 11:57:45,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2022-11-16 11:57:45,950 INFO L413 NwaCegarLoop]: 1291 mSDtfsCounter, 1936 mSDsluCounter, 3625 mSDsCounter, 0 mSdLazyCounter, 3881 mSolverCounterSat, 1209 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2166 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 5093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1209 IncrementalHoareTripleChecker+Valid, 3881 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.2s IncrementalHoareTripleChecker+Time [2022-11-16 11:57:45,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2166 Valid, 4916 Invalid, 5093 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1209 Valid, 3881 Invalid, 3 Unknown, 0 Unchecked, 22.2s Time] [2022-11-16 11:57:45,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2022-11-16 11:57:46,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 2752. [2022-11-16 11:57:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2752 states, 1959 states have (on average 1.3828483920367534) internal successors, (2709), 2042 states have internal predecessors, (2709), 623 states have call successors, (623), 163 states have call predecessors, (623), 169 states have return successors, (650), 614 states have call predecessors, (650), 622 states have call successors, (650) [2022-11-16 11:57:46,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2752 states to 2752 states and 3982 transitions. [2022-11-16 11:57:46,322 INFO L78 Accepts]: Start accepts. Automaton has 2752 states and 3982 transitions. Word has length 119 [2022-11-16 11:57:46,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:57:46,322 INFO L495 AbstractCegarLoop]: Abstraction has 2752 states and 3982 transitions. [2022-11-16 11:57:46,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-16 11:57:46,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2752 states and 3982 transitions. [2022-11-16 11:57:46,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-11-16 11:57:46,334 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:57:46,335 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:57:46,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-16 11:57:46,335 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 11:57:46,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:57:46,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1928255557, now seen corresponding path program 1 times [2022-11-16 11:57:46,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:57:46,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640926513] [2022-11-16 11:57:46,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:57:46,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:57:46,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 11:57:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-16 11:57:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-11-16 11:57:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-11-16 11:57:46,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-11-16 11:57:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 11:57:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 11:57:46,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-11-16 11:57:46,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 11:57:46,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 11:57:46,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-11-16 11:57:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:46,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 11:57:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:57:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-16 11:57:47,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:57:47,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640926513] [2022-11-16 11:57:47,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640926513] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:57:47,001 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:57:47,001 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-16 11:57:47,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965084194] [2022-11-16 11:57:47,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:57:47,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 11:57:47,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:57:47,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 11:57:47,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-16 11:57:47,003 INFO L87 Difference]: Start difference. First operand 2752 states and 3982 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 11:57:57,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:02,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:04,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:06,333 WARN L539 Checker$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 11:58:09,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:10,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:11,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 11:58:12,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:58:12,080 INFO L93 Difference]: Finished difference Result 3818 states and 5989 transitions. [2022-11-16 11:58:12,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 11:58:12,081 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 138 [2022-11-16 11:58:12,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:58:12,082 INFO L225 Difference]: With dead ends: 3818 [2022-11-16 11:58:12,082 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 11:58:12,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-16 11:58:12,100 INFO L413 NwaCegarLoop]: 1120 mSDtfsCounter, 2465 mSDsluCounter, 3190 mSDsCounter, 0 mSdLazyCounter, 4308 mSolverCounterSat, 2170 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 4310 SdHoareTripleChecker+Invalid, 6480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2170 IncrementalHoareTripleChecker+Valid, 4308 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.5s IncrementalHoareTripleChecker+Time [2022-11-16 11:58:12,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 4310 Invalid, 6480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2170 Valid, 4308 Invalid, 2 Unknown, 0 Unchecked, 24.5s Time] [2022-11-16 11:58:12,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 11:58:12,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 11:58:12,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:58:12,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 11:58:12,103 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 138 [2022-11-16 11:58:12,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:58:12,103 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 11:58:12,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (21), 9 states have call predecessors, (21), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 11:58:12,104 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 11:58:12,104 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 11:58:12,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 11:58:12,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 11:58:12,109 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 11:58:18,609 WARN L233 SmtUtils]: Spent 6.35s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:58:25,895 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:58:34,250 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:58:40,512 WARN L233 SmtUtils]: Spent 5.25s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:58:45,735 WARN L233 SmtUtils]: Spent 5.22s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:58:51,006 WARN L233 SmtUtils]: Spent 5.27s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:58:58,368 WARN L233 SmtUtils]: Spent 5.31s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:04,625 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:09,909 WARN L233 SmtUtils]: Spent 5.28s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:16,173 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:22,453 WARN L233 SmtUtils]: Spent 5.24s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:28,207 WARN L233 SmtUtils]: Spent 5.75s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:35,133 WARN L233 SmtUtils]: Spent 5.64s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:42,932 WARN L233 SmtUtils]: Spent 5.45s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:50,680 WARN L233 SmtUtils]: Spent 6.60s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 11:59:57,366 WARN L233 SmtUtils]: Spent 6.68s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:00:08,739 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:00:14,667 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:00:25,189 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:00:36,247 WARN L233 SmtUtils]: Spent 5.49s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:00:42,124 WARN L233 SmtUtils]: Spent 5.88s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:00:59,380 WARN L233 SmtUtils]: Spent 5.17s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:01:10,220 WARN L233 SmtUtils]: Spent 5.83s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:01:21,175 WARN L233 SmtUtils]: Spent 5.23s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:01:36,586 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:01:48,056 WARN L233 SmtUtils]: Spent 10.01s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:09,994 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:15,143 WARN L233 SmtUtils]: Spent 5.15s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:20,683 WARN L233 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:31,298 WARN L233 SmtUtils]: Spent 5.78s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:38,497 WARN L233 SmtUtils]: Spent 5.55s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:44,168 WARN L233 SmtUtils]: Spent 5.67s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:49,695 WARN L233 SmtUtils]: Spent 5.53s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:02:56,838 WARN L233 SmtUtils]: Spent 7.14s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:02,732 WARN L233 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:08,643 WARN L233 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:14,970 WARN L233 SmtUtils]: Spent 6.33s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:22,224 WARN L233 SmtUtils]: Spent 6.39s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:29,818 WARN L233 SmtUtils]: Spent 6.66s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:38,264 WARN L233 SmtUtils]: Spent 7.14s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:45,161 WARN L233 SmtUtils]: Spent 5.59s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:53,089 WARN L233 SmtUtils]: Spent 6.19s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:03:59,455 WARN L233 SmtUtils]: Spent 5.69s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:04:06,166 WARN L233 SmtUtils]: Spent 5.60s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:04:11,639 WARN L233 SmtUtils]: Spent 5.47s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:04:17,101 WARN L233 SmtUtils]: Spent 5.46s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:04:22,533 WARN L233 SmtUtils]: Spent 5.43s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:04:38,273 WARN L233 SmtUtils]: Spent 9.93s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:04:48,046 WARN L233 SmtUtils]: Spent 9.77s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:04:56,318 WARN L233 SmtUtils]: Spent 5.11s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:05:02,080 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:05:08,143 WARN L233 SmtUtils]: Spent 5.51s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:05:13,857 WARN L233 SmtUtils]: Spent 5.16s on a formula simplification. DAG size of input: 81 DAG size of output: 79 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:05:33,505 WARN L233 SmtUtils]: Spent 19.43s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:05:51,710 WARN L233 SmtUtils]: Spent 18.20s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:06:13,840 WARN L233 SmtUtils]: Spent 18.14s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:06:32,234 WARN L233 SmtUtils]: Spent 18.39s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:06:54,599 WARN L233 SmtUtils]: Spent 18.57s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:07:15,138 WARN L233 SmtUtils]: Spent 18.60s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:07:35,106 WARN L233 SmtUtils]: Spent 17.93s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:07:53,211 WARN L233 SmtUtils]: Spent 18.10s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:08:11,625 WARN L233 SmtUtils]: Spent 18.41s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:08:39,564 WARN L233 SmtUtils]: Spent 18.37s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:08:58,690 WARN L233 SmtUtils]: Spent 19.12s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:09:17,153 WARN L233 SmtUtils]: Spent 18.46s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-11-16 12:09:41,290 WARN L233 SmtUtils]: Spent 22.04s on a formula simplification. DAG size of input: 83 DAG size of output: 81 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)