./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--amd--amdkfd--amdkfd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--amd--amdkfd--amdkfd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa --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 813a63e0f349f91d9e54dbf7457f9814054131e6c1498f51194ed448e03f3c13 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:20:40,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:20:40,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:20:40,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:20:40,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:20:40,177 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:20:40,178 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:20:40,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:20:40,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:20:40,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:20:40,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:20:40,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:20:40,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:20:40,185 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:20:40,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:20:40,187 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:20:40,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:20:40,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:20:40,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:20:40,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:20:40,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:20:40,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:20:40,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:20:40,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:20:40,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:20:40,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:20:40,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:20:40,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:20:40,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:20:40,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:20:40,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:20:40,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:20:40,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:20:40,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:20:40,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:20:40,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:20:40,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:20:40,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:20:40,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:20:40,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:20:40,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:20:40,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-06 22:20:40,234 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:20:40,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:20:40,238 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:20:40,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:20:40,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:20:40,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:20:40,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:20:40,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:20:40,240 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:20:40,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:20:40,240 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:20:40,240 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:20:40,240 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:20:40,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:20:40,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:20:40,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:20:40,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:20:40,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:20:40,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:20:40,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:20:40,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:20:40,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:20:40,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:20:40,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:20:40,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:20:40,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:20:40,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:20:40,242 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:20:40,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:20:40,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:20:40,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:20:40,243 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_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 813a63e0f349f91d9e54dbf7457f9814054131e6c1498f51194ed448e03f3c13 [2021-12-06 22:20:40,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:20:40,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:20:40,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:20:40,430 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:20:40,431 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:20:40,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--amd--amdkfd--amdkfd.ko-entry_point.cil.out.i [2021-12-06 22:20:40,473 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/data/ac7e7e36b/33634507c27045eeba521b95cec55adc/FLAGeced1cab5 [2021-12-06 22:20:41,238 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:20:41,239 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--amd--amdkfd--amdkfd.ko-entry_point.cil.out.i [2021-12-06 22:20:41,303 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/data/ac7e7e36b/33634507c27045eeba521b95cec55adc/FLAGeced1cab5 [2021-12-06 22:20:41,505 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/data/ac7e7e36b/33634507c27045eeba521b95cec55adc [2021-12-06 22:20:41,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:20:41,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:20:41,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:20:41,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:20:41,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:20:41,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:20:41" (1/1) ... [2021-12-06 22:20:41,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c41c0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:41, skipping insertion in model container [2021-12-06 22:20:41,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:20:41" (1/1) ... [2021-12-06 22:20:41,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:20:41,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:20:48,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--amd--amdkfd--amdkfd.ko-entry_point.cil.out.i[871607,871620] [2021-12-06 22:20:49,560 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-06 22:20:49,584 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:20:49,614 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:20:50,349 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--amd--amdkfd--amdkfd.ko-entry_point.cil.out.i[871607,871620] [2021-12-06 22:20:50,375 WARN L610 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-12-06 22:20:50,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:20:50,725 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:20:50,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50 WrapperNode [2021-12-06 22:20:50,726 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:20:50,727 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:20:50,727 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:20:50,727 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:20:50,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:50,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,229 INFO L137 Inliner]: procedures = 1022, calls = 13337, calls flagged for inlining = 403, calls inlined = 383, statements flattened = 21885 [2021-12-06 22:20:51,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:20:51,230 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:20:51,230 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:20:51,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:20:51,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,680 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:20:51,802 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:20:51,802 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:20:51,802 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:20:51,803 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (1/1) ... [2021-12-06 22:20:51,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:20:51,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:20:51,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:20:51,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:20:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_event [2021-12-06 22:20:51,878 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_event [2021-12-06 22:20:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-06 22:20:51,878 INFO L130 BoogieDeclarations]: Found specification of procedure build_pm4_header [2021-12-06 22:20:51,879 INFO L138 BoogieDeclarations]: Found implementation of procedure build_pm4_header [2021-12-06 22:20:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~X~$Pointer$~TO~int [2021-12-06 22:20:51,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~X~$Pointer$~TO~int [2021-12-06 22:20:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure deallocate_sdma_queue [2021-12-06 22:20:51,879 INFO L138 BoogieDeclarations]: Found implementation of procedure deallocate_sdma_queue [2021-12-06 22:20:51,879 INFO L130 BoogieDeclarations]: Found specification of procedure process_srcu [2021-12-06 22:20:51,879 INFO L138 BoogieDeclarations]: Found implementation of procedure process_srcu [2021-12-06 22:20:51,880 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,880 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_wave_control_set_registers [2021-12-06 22:20:51,880 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_wave_control_set_registers [2021-12-06 22:20:51,880 INFO L130 BoogieDeclarations]: Found specification of procedure kgd2kfd_device_exit [2021-12-06 22:20:51,881 INFO L138 BoogieDeclarations]: Found implementation of procedure kgd2kfd_device_exit [2021-12-06 22:20:51,881 INFO L130 BoogieDeclarations]: Found specification of procedure __clear_bit [2021-12-06 22:20:51,881 INFO L138 BoogieDeclarations]: Found implementation of procedure __clear_bit [2021-12-06 22:20:51,881 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-06 22:20:51,881 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-06 22:20:51,881 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~~uint32_t~0~X~~uint32_t~0~TO~int [2021-12-06 22:20:51,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~~uint32_t~0~X~~uint32_t~0~TO~int [2021-12-06 22:20:51,882 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl_dbg_unrgesiter [2021-12-06 22:20:51,882 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl_dbg_unrgesiter [2021-12-06 22:20:51,882 INFO L130 BoogieDeclarations]: Found specification of procedure cik_event_interrupt_isr [2021-12-06 22:20:51,882 INFO L138 BoogieDeclarations]: Found implementation of procedure cik_event_interrupt_isr [2021-12-06 22:20:51,882 INFO L130 BoogieDeclarations]: Found specification of procedure initialize [2021-12-06 22:20:51,883 INFO L138 BoogieDeclarations]: Found implementation of procedure initialize [2021-12-06 22:20:51,883 INFO L130 BoogieDeclarations]: Found specification of procedure lookup_event_by_id [2021-12-06 22:20:51,883 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup_event_by_id [2021-12-06 22:20:51,883 INFO L130 BoogieDeclarations]: Found specification of procedure pm_send_set_resources [2021-12-06 22:20:51,883 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_send_set_resources [2021-12-06 22:20:51,883 INFO L130 BoogieDeclarations]: Found specification of procedure device_queue_manager_uninit [2021-12-06 22:20:51,884 INFO L138 BoogieDeclarations]: Found implementation of procedure device_queue_manager_uninit [2021-12-06 22:20:51,884 INFO L130 BoogieDeclarations]: Found specification of procedure print_queue [2021-12-06 22:20:51,884 INFO L138 BoogieDeclarations]: Found implementation of procedure print_queue [2021-12-06 22:20:51,884 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_sdma_queues [2021-12-06 22:20:51,884 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_sdma_queues [2021-12-06 22:20:51,885 INFO L130 BoogieDeclarations]: Found specification of procedure program_sh_mem_settings [2021-12-06 22:20:51,885 INFO L138 BoogieDeclarations]: Found implementation of procedure program_sh_mem_settings [2021-12-06 22:20:51,885 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_address_watch_diq [2021-12-06 22:20:51,885 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_address_watch_diq [2021-12-06 22:20:51,885 INFO L130 BoogieDeclarations]: Found specification of procedure pqm_uninit [2021-12-06 22:20:51,885 INFO L138 BoogieDeclarations]: Found implementation of procedure pqm_uninit [2021-12-06 22:20:51,886 INFO L130 BoogieDeclarations]: Found specification of procedure get_pipes_num_cpsch [2021-12-06 22:20:51,886 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pipes_num_cpsch [2021-12-06 22:20:51,886 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_gtt_sa_allocate [2021-12-06 22:20:51,886 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_gtt_sa_allocate [2021-12-06 22:20:51,886 INFO L130 BoogieDeclarations]: Found specification of procedure interrupt_is_wanted [2021-12-06 22:20:51,886 INFO L138 BoogieDeclarations]: Found implementation of procedure interrupt_is_wanted [2021-12-06 22:20:51,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2021-12-06 22:20:51,887 INFO L130 BoogieDeclarations]: Found specification of procedure sysprops_show [2021-12-06 22:20:51,887 INFO L138 BoogieDeclarations]: Found implementation of procedure sysprops_show [2021-12-06 22:20:51,887 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_pasid_mutex [2021-12-06 22:20:51,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_pasid_mutex [2021-12-06 22:20:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-06 22:20:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-06 22:20:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_dbgmgr_unregister [2021-12-06 22:20:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_dbgmgr_unregister [2021-12-06 22:20:51,888 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_kfd_process [2021-12-06 22:20:51,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_kfd_process [2021-12-06 22:20:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure deallocate_vmid [2021-12-06 22:20:51,889 INFO L138 BoogieDeclarations]: Found implementation of procedure deallocate_vmid [2021-12-06 22:20:51,889 INFO L130 BoogieDeclarations]: Found specification of procedure create_queue_cpsch [2021-12-06 22:20:51,889 INFO L138 BoogieDeclarations]: Found implementation of procedure create_queue_cpsch [2021-12-06 22:20:51,890 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_get_process [2021-12-06 22:20:51,890 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_get_process [2021-12-06 22:20:51,890 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_signal_event_interrupt [2021-12-06 22:20:51,890 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_signal_event_interrupt [2021-12-06 22:20:51,890 INFO L130 BoogieDeclarations]: Found specification of procedure amd_iommu_set_invalidate_ctx_cb [2021-12-06 22:20:51,890 INFO L138 BoogieDeclarations]: Found implementation of procedure amd_iommu_set_invalidate_ctx_cb [2021-12-06 22:20:51,891 INFO L130 BoogieDeclarations]: Found specification of procedure find_next_zero_bit [2021-12-06 22:20:51,891 INFO L138 BoogieDeclarations]: Found implementation of procedure find_next_zero_bit [2021-12-06 22:20:51,891 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_wave_control_diq [2021-12-06 22:20:51,891 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_wave_control_diq [2021-12-06 22:20:51,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-06 22:20:51,891 INFO L130 BoogieDeclarations]: Found specification of procedure pm_send_query_status [2021-12-06 22:20:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_send_query_status [2021-12-06 22:20:51,892 INFO L130 BoogieDeclarations]: Found specification of procedure pm_create_map_queue [2021-12-06 22:20:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_create_map_queue [2021-12-06 22:20:51,892 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-06 22:20:51,892 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-06 22:20:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure __hlist_del [2021-12-06 22:20:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure __hlist_del [2021-12-06 22:20:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_queue_cpsch [2021-12-06 22:20:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_queue_cpsch [2021-12-06 22:20:51,893 INFO L130 BoogieDeclarations]: Found specification of procedure get_mqd [2021-12-06 22:20:51,893 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mqd [2021-12-06 22:20:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure iolink_show [2021-12-06 22:20:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure iolink_show [2021-12-06 22:20:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-06 22:20:51,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-06 22:20:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-06 22:20:51,894 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-06 22:20:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-06 22:20:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:20:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-06 22:20:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-06 22:20:51,895 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl_dbg_wave_control [2021-12-06 22:20:51,895 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl_dbg_wave_control [2021-12-06 22:20:51,896 INFO L130 BoogieDeclarations]: Found specification of procedure get_sh_mem_bases_32 [2021-12-06 22:20:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sh_mem_bases_32 [2021-12-06 22:20:51,896 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_create_and_add [2021-12-06 22:20:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_create_and_add [2021-12-06 22:20:51,896 INFO L130 BoogieDeclarations]: Found specification of procedure pm_release_ib [2021-12-06 22:20:51,896 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_release_ib [2021-12-06 22:20:51,897 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-06 22:20:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-06 22:20:51,897 INFO L130 BoogieDeclarations]: Found specification of procedure init_mqd_hiq [2021-12-06 22:20:51,897 INFO L138 BoogieDeclarations]: Found implementation of procedure init_mqd_hiq [2021-12-06 22:20:51,897 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~uint8_t~0~TO~~bool~0 [2021-12-06 22:20:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~uint8_t~0~TO~~bool~0 [2021-12-06 22:20:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_kfd_processes_mutex [2021-12-06 22:20:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_kfd_processes_mutex [2021-12-06 22:20:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure mmu_notifier_unregister_no_release [2021-12-06 22:20:51,898 INFO L138 BoogieDeclarations]: Found implementation of procedure mmu_notifier_unregister_no_release [2021-12-06 22:20:51,898 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_NOT_ARG_SIGN [2021-12-06 22:20:51,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_NOT_ARG_SIGN [2021-12-06 22:20:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_packet_manager [2021-12-06 22:20:51,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_packet_manager [2021-12-06 22:20:51,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_gtt_sa_lock_of_kfd_dev [2021-12-06 22:20:51,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_gtt_sa_lock_of_kfd_dev [2021-12-06 22:20:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-06 22:20:51,900 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-06 22:20:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_kernel_queue_cpsch [2021-12-06 22:20:51,900 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_kernel_queue_cpsch [2021-12-06 22:20:51,900 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_diq_submit_ib [2021-12-06 22:20:51,900 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_diq_submit_ib [2021-12-06 22:20:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:20:51,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:20:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-06 22:20:51,901 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-06 22:20:51,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_kfd_processes_mutex [2021-12-06 22:20:51,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_kfd_processes_mutex [2021-12-06 22:20:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure mem_show [2021-12-06 22:20:51,902 INFO L138 BoogieDeclarations]: Found implementation of procedure mem_show [2021-12-06 22:20:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_dbgmgr_wave_control [2021-12-06 22:20:51,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_dbgmgr_wave_control [2021-12-06 22:20:51,902 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_remove_sysfs_node_tree [2021-12-06 22:20:51,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_remove_sysfs_node_tree [2021-12-06 22:20:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_event_mutex_of_kfd_process [2021-12-06 22:20:51,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_event_mutex_of_kfd_process [2021-12-06 22:20:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-06 22:20:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure init_pipelines [2021-12-06 22:20:51,903 INFO L138 BoogieDeclarations]: Found implementation of procedure init_pipelines [2021-12-06 22:20:51,903 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-06 22:20:51,903 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-06 22:20:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure get_mqd_type_from_queue_type [2021-12-06 22:20:51,904 INFO L138 BoogieDeclarations]: Found implementation of procedure get_mqd_type_from_queue_type [2021-12-06 22:20:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure pm_init [2021-12-06 22:20:51,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_init [2021-12-06 22:20:51,904 INFO L130 BoogieDeclarations]: Found specification of procedure pqm_destroy_queue [2021-12-06 22:20:51,904 INFO L138 BoogieDeclarations]: Found implementation of procedure pqm_destroy_queue [2021-12-06 22:20:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_free_slot [2021-12-06 22:20:51,905 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_free_slot [2021-12-06 22:20:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure uninit_queue [2021-12-06 22:20:51,905 INFO L138 BoogieDeclarations]: Found implementation of procedure uninit_queue [2021-12-06 22:20:51,905 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-06 22:20:51,905 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-06 22:20:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-06 22:20:51,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-06 22:20:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_queue_init [2021-12-06 22:20:51,906 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_queue_init [2021-12-06 22:20:51,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_NOT_ARG_SIGN [2021-12-06 22:20:51,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_NOT_ARG_SIGN [2021-12-06 22:20:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-06 22:20:51,907 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-06 22:20:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_doorbell_mutex_of_kfd_dev [2021-12-06 22:20:51,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_doorbell_mutex_of_kfd_dev [2021-12-06 22:20:51,907 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_notify_gpu_change [2021-12-06 22:20:51,907 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_notify_gpu_change [2021-12-06 22:20:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure inc_wptr [2021-12-06 22:20:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure inc_wptr [2021-12-06 22:20:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~~uint32_t~0 [2021-12-06 22:20:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~~uint32_t~0 [2021-12-06 22:20:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-12-06 22:20:51,908 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-12-06 22:20:51,908 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-06 22:20:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-06 22:20:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure timespec_to_ns [2021-12-06 22:20:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure timespec_to_ns [2021-12-06 22:20:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure create_sdma_queue_nocpsch [2021-12-06 22:20:51,909 INFO L138 BoogieDeclarations]: Found implementation of procedure create_sdma_queue_nocpsch [2021-12-06 22:20:51,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-06 22:20:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-06 22:20:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-06 22:20:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_read_lock [2021-12-06 22:20:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_read_lock [2021-12-06 22:20:51,910 INFO L130 BoogieDeclarations]: Found specification of procedure set_cache_memory_policy [2021-12-06 22:20:51,910 INFO L138 BoogieDeclarations]: Found implementation of procedure set_cache_memory_policy [2021-12-06 22:20:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_remove_sysfs_file [2021-12-06 22:20:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_remove_sysfs_file [2021-12-06 22:20:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 22:20:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 22:20:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-06 22:20:51,911 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_pasid_exit [2021-12-06 22:20:51,911 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_pasid_exit [2021-12-06 22:20:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_2 [2021-12-06 22:20:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_2 [2021-12-06 22:20:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-06 22:20:51,912 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-06 22:20:51,912 INFO L130 BoogieDeclarations]: Found specification of procedure create_compute_queue_nocpsch [2021-12-06 22:20:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure create_compute_queue_nocpsch [2021-12-06 22:20:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-12-06 22:20:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-12-06 22:20:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-06 22:20:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-06 22:20:51,913 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-06 22:20:51,913 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-06 22:20:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_cache_show [2021-12-06 22:20:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_cache_show [2021-12-06 22:20:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure load_mqd_sdma [2021-12-06 22:20:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure load_mqd_sdma [2021-12-06 22:20:51,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_device_queue_manager [2021-12-06 22:20:51,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_device_queue_manager [2021-12-06 22:20:51,915 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_lookup_process_by_pasid [2021-12-06 22:20:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_lookup_process_by_pasid [2021-12-06 22:20:51,915 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_topology_release_sysfs [2021-12-06 22:20:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_topology_release_sysfs [2021-12-06 22:20:51,915 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-06 22:20:51,915 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-06 22:20:51,915 INFO L130 BoogieDeclarations]: Found specification of procedure set_sched_resources [2021-12-06 22:20:51,916 INFO L138 BoogieDeclarations]: Found implementation of procedure set_sched_resources [2021-12-06 22:20:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_bit [2021-12-06 22:20:51,916 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_bit [2021-12-06 22:20:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_queues_cpsch [2021-12-06 22:20:51,916 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_queues_cpsch [2021-12-06 22:20:51,916 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-12-06 22:20:51,917 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-12-06 22:20:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2021-12-06 22:20:51,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~uint32_t~0~X~~uint32_t~0~TO~int [2021-12-06 22:20:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_mmap [2021-12-06 22:20:51,917 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_mmap [2021-12-06 22:20:51,917 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2021-12-06 22:20:51,918 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2021-12-06 22:20:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure cik_event_interrupt_wq [2021-12-06 22:20:51,918 INFO L138 BoogieDeclarations]: Found implementation of procedure cik_event_interrupt_wq [2021-12-06 22:20:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_event_mutex_of_kfd_process [2021-12-06 22:20:51,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_event_mutex_of_kfd_process [2021-12-06 22:20:51,918 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_queue_nocpsch [2021-12-06 22:20:51,918 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_queue_nocpsch [2021-12-06 22:20:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure event_can_be_cpu_signaled [2021-12-06 22:20:51,919 INFO L138 BoogieDeclarations]: Found implementation of procedure event_can_be_cpu_signaled [2021-12-06 22:20:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure amd_iommu_init_device [2021-12-06 22:20:51,919 INFO L138 BoogieDeclarations]: Found implementation of procedure amd_iommu_init_device [2021-12-06 22:20:51,919 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl_dbg_address_watch [2021-12-06 22:20:51,919 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl_dbg_address_watch [2021-12-06 22:20:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-06 22:20:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure find_first_zero_bit [2021-12-06 22:20:51,920 INFO L138 BoogieDeclarations]: Found implementation of procedure find_first_zero_bit [2021-12-06 22:20:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-06 22:20:51,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-06 22:20:51,920 INFO L130 BoogieDeclarations]: Found specification of procedure hash_del_rcu [2021-12-06 22:20:51,921 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_del_rcu [2021-12-06 22:20:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure lookup_events_by_type_and_signal [2021-12-06 22:20:51,921 INFO L138 BoogieDeclarations]: Found implementation of procedure lookup_events_by_type_and_signal [2021-12-06 22:20:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue_by_qid [2021-12-06 22:20:51,921 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue_by_qid [2021-12-06 22:20:51,921 INFO L130 BoogieDeclarations]: Found specification of procedure create_queue_nocpsch [2021-12-06 22:20:51,922 INFO L138 BoogieDeclarations]: Found implementation of procedure create_queue_nocpsch [2021-12-06 22:20:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-06 22:20:51,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~TO~int [2021-12-06 22:20:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure init_mqd [2021-12-06 22:20:51,922 INFO L138 BoogieDeclarations]: Found implementation of procedure init_mqd [2021-12-06 22:20:51,922 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-12-06 22:20:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-12-06 22:20:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure hlist_unhashed [2021-12-06 22:20:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure hlist_unhashed [2021-12-06 22:20:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2021-12-06 22:20:51,923 INFO L130 BoogieDeclarations]: Found specification of procedure ffs [2021-12-06 22:20:51,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ffs [2021-12-06 22:20:51,924 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_2 [2021-12-06 22:20:51,924 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_2 [2021-12-06 22:20:51,924 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_topology_update_sysfs [2021-12-06 22:20:51,924 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_topology_update_sysfs [2021-12-06 22:20:51,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_device_queue_manager [2021-12-06 22:20:51,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_device_queue_manager [2021-12-06 22:20:51,924 INFO L130 BoogieDeclarations]: Found specification of procedure kernel_queue_uninit [2021-12-06 22:20:51,925 INFO L138 BoogieDeclarations]: Found implementation of procedure kernel_queue_uninit [2021-12-06 22:20:51,925 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-06 22:20:51,925 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-06 22:20:51,925 INFO L130 BoogieDeclarations]: Found specification of procedure srcu_read_unlock [2021-12-06 22:20:51,925 INFO L138 BoogieDeclarations]: Found implementation of procedure srcu_read_unlock [2021-12-06 22:20:51,925 INFO L130 BoogieDeclarations]: Found specification of procedure doorbell_process_allocation [2021-12-06 22:20:51,926 INFO L138 BoogieDeclarations]: Found implementation of procedure doorbell_process_allocation [2021-12-06 22:20:51,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-06 22:20:51,926 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-06 22:20:51,926 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_interrupt_exit [2021-12-06 22:20:51,926 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_interrupt_exit [2021-12-06 22:20:51,926 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-06 22:20:51,927 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-06 22:20:51,927 INFO L130 BoogieDeclarations]: Found specification of procedure register_process_nocpsch [2021-12-06 22:20:51,927 INFO L138 BoogieDeclarations]: Found implementation of procedure register_process_nocpsch [2021-12-06 22:20:51,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-06 22:20:51,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-06 22:20:51,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_doorbell_mutex_of_kfd_dev [2021-12-06 22:20:51,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_doorbell_mutex_of_kfd_dev [2021-12-06 22:20:51,928 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_dbgmgr_destroy [2021-12-06 22:20:51,928 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_dbgmgr_destroy [2021-12-06 22:20:51,928 INFO L130 BoogieDeclarations]: Found specification of procedure pm_send_unmap_queue [2021-12-06 22:20:51,928 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_send_unmap_queue [2021-12-06 22:20:51,928 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_unregister_nodiq [2021-12-06 22:20:51,928 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_unregister_nodiq [2021-12-06 22:20:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_2 [2021-12-06 22:20:51,929 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_2 [2021-12-06 22:20:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure kgd2kfd_device_init [2021-12-06 22:20:51,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kgd2kfd_device_init [2021-12-06 22:20:51,929 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_topology_get_crat_acpi [2021-12-06 22:20:51,929 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_topology_get_crat_acpi [2021-12-06 22:20:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_dbgmgr_address_watch [2021-12-06 22:20:51,930 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_dbgmgr_address_watch [2021-12-06 22:20:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-06 22:20:51,930 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-06 22:20:51,930 INFO L130 BoogieDeclarations]: Found specification of procedure uninitialize [2021-12-06 22:20:51,930 INFO L138 BoogieDeclarations]: Found implementation of procedure uninitialize [2021-12-06 22:20:51,931 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_open [2021-12-06 22:20:51,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_open [2021-12-06 22:20:51,931 INFO L130 BoogieDeclarations]: Found specification of procedure make_signal_event_id [2021-12-06 22:20:51,931 INFO L138 BoogieDeclarations]: Found implementation of procedure make_signal_event_id [2021-12-06 22:20:51,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-06 22:20:51,931 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_process_notifier_release [2021-12-06 22:20:51,931 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_process_notifier_release [2021-12-06 22:20:51,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-06 22:20:51,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-06 22:20:51,932 INFO L130 BoogieDeclarations]: Found specification of procedure init_mqd_sdma [2021-12-06 22:20:51,932 INFO L138 BoogieDeclarations]: Found implementation of procedure init_mqd_sdma [2021-12-06 22:20:51,932 INFO L130 BoogieDeclarations]: Found specification of procedure get_pipes_num [2021-12-06 22:20:51,932 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pipes_num [2021-12-06 22:20:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-06 22:20:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure kgd2kfd_resume [2021-12-06 22:20:51,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kgd2kfd_resume [2021-12-06 22:20:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure __chk_range_not_ok [2021-12-06 22:20:51,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __chk_range_not_ok [2021-12-06 22:20:51,933 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_create_topology_device [2021-12-06 22:20:51,934 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_create_topology_device [2021-12-06 22:20:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-06 22:20:51,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-06 22:20:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-06 22:20:51,934 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-06 22:20:51,934 INFO L130 BoogieDeclarations]: Found specification of procedure node_show [2021-12-06 22:20:51,934 INFO L138 BoogieDeclarations]: Found implementation of procedure node_show [2021-12-06 22:20:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-06 22:20:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure create_kernel_queue_cpsch [2021-12-06 22:20:51,935 INFO L138 BoogieDeclarations]: Found implementation of procedure create_kernel_queue_cpsch [2021-12-06 22:20:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-06 22:20:51,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~~bool~0 [2021-12-06 22:20:51,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~~bool~0 [2021-12-06 22:20:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_flush_workqueue_550 [2021-12-06 22:20:51,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_flush_workqueue_550 [2021-12-06 22:20:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-06 22:20:51,936 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-06 22:20:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure stop_cpsch [2021-12-06 22:20:51,936 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_cpsch [2021-12-06 22:20:51,936 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_destroy [2021-12-06 22:20:51,937 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_destroy [2021-12-06 22:20:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_pasid_mutex [2021-12-06 22:20:51,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_pasid_mutex [2021-12-06 22:20:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure free_waiters [2021-12-06 22:20:51,937 INFO L138 BoogieDeclarations]: Found implementation of procedure free_waiters [2021-12-06 22:20:51,937 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-12-06 22:20:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-12-06 22:20:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-06 22:20:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-06 22:20:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-06 22:20:51,938 INFO L130 BoogieDeclarations]: Found specification of procedure flush_scheduled_work [2021-12-06 22:20:51,938 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_scheduled_work [2021-12-06 22:20:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_get_process_device_data [2021-12-06 22:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_get_process_device_data [2021-12-06 22:20:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl_update_queue [2021-12-06 22:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl_update_queue [2021-12-06 22:20:51,939 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_get_dbgmgr_mutex [2021-12-06 22:20:51,939 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_get_dbgmgr_mutex [2021-12-06 22:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl_destroy_queue [2021-12-06 22:20:51,940 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl_destroy_queue [2021-12-06 22:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure pqm_create_queue [2021-12-06 22:20:51,940 INFO L138 BoogieDeclarations]: Found implementation of procedure pqm_create_queue [2021-12-06 22:20:51,940 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure execute_queues_cpsch [2021-12-06 22:20:51,941 INFO L138 BoogieDeclarations]: Found implementation of procedure execute_queues_cpsch [2021-12-06 22:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure set_event_from_interrupt [2021-12-06 22:20:51,941 INFO L138 BoogieDeclarations]: Found implementation of procedure set_event_from_interrupt [2021-12-06 22:20:51,941 INFO L130 BoogieDeclarations]: Found specification of procedure up_read [2021-12-06 22:20:51,941 INFO L138 BoogieDeclarations]: Found implementation of procedure up_read [2021-12-06 22:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_create_process [2021-12-06 22:20:51,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_create_process [2021-12-06 22:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 22:20:51,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-06 22:20:51,942 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-06 22:20:51,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-06 22:20:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure page_slots [2021-12-06 22:20:51,943 INFO L138 BoogieDeclarations]: Found implementation of procedure page_slots [2021-12-06 22:20:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_bind_process_to_device [2021-12-06 22:20:51,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_bind_process_to_device [2021-12-06 22:20:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure deallocate_hqd [2021-12-06 22:20:51,943 INFO L138 BoogieDeclarations]: Found implementation of procedure deallocate_hqd [2021-12-06 22:20:51,943 INFO L130 BoogieDeclarations]: Found specification of procedure remap_pfn_range [2021-12-06 22:20:51,944 INFO L138 BoogieDeclarations]: Found implementation of procedure remap_pfn_range [2021-12-06 22:20:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-06 22:20:51,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-06 22:20:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure amd_iommu_set_invalid_ppr_cb [2021-12-06 22:20:51,944 INFO L138 BoogieDeclarations]: Found implementation of procedure amd_iommu_set_invalid_ppr_cb [2021-12-06 22:20:51,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_76 [2021-12-06 22:20:51,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_76 [2021-12-06 22:20:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure down_write [2021-12-06 22:20:51,945 INFO L138 BoogieDeclarations]: Found implementation of procedure down_write [2021-12-06 22:20:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure amd_iommu_free_device [2021-12-06 22:20:51,945 INFO L138 BoogieDeclarations]: Found implementation of procedure amd_iommu_free_device [2021-12-06 22:20:51,945 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~$Pointer$~X~~uint64_t~0~TO~~bool~0 [2021-12-06 22:20:51,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~$Pointer$~X~~uint64_t~0~TO~~bool~0 [2021-12-06 22:20:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure get_sh_mem_bases_nybble_64 [2021-12-06 22:20:51,946 INFO L138 BoogieDeclarations]: Found implementation of procedure get_sh_mem_bases_nybble_64 [2021-12-06 22:20:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure set_pasid_vmid_mapping [2021-12-06 22:20:51,946 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pasid_vmid_mapping [2021-12-06 22:20:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_release_kernel_doorbell [2021-12-06 22:20:51,946 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_release_kernel_doorbell [2021-12-06 22:20:51,946 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_wave_reset_wavefronts [2021-12-06 22:20:51,947 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_wave_reset_wavefronts [2021-12-06 22:20:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_vmid [2021-12-06 22:20:51,947 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_vmid [2021-12-06 22:20:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-06 22:20:51,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-06 22:20:51,947 INFO L130 BoogieDeclarations]: Found specification of procedure pm_create_runlist [2021-12-06 22:20:51,948 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_create_runlist [2021-12-06 22:20:51,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-06 22:20:51,948 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-06 22:20:51,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-06 22:20:51,948 INFO L130 BoogieDeclarations]: Found specification of procedure hash_64 [2021-12-06 22:20:51,948 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_64 [2021-12-06 22:20:51,948 INFO L130 BoogieDeclarations]: Found specification of procedure start_cpsch [2021-12-06 22:20:51,949 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cpsch [2021-12-06 22:20:51,949 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_device_by_id [2021-12-06 22:20:51,949 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_device_by_id [2021-12-06 22:20:51,949 INFO L130 BoogieDeclarations]: Found specification of procedure init_interrupts [2021-12-06 22:20:51,949 INFO L138 BoogieDeclarations]: Found implementation of procedure init_interrupts [2021-12-06 22:20:51,949 INFO L130 BoogieDeclarations]: Found specification of procedure amdkfd_fence_wait_timeout [2021-12-06 22:20:51,949 INFO L138 BoogieDeclarations]: Found implementation of procedure amdkfd_fence_wait_timeout [2021-12-06 22:20:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_topology_remove_device [2021-12-06 22:20:51,950 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_topology_remove_device [2021-12-06 22:20:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure update_queue [2021-12-06 22:20:51,950 INFO L138 BoogieDeclarations]: Found implementation of procedure update_queue [2021-12-06 22:20:51,950 INFO L130 BoogieDeclarations]: Found specification of procedure load_mqd [2021-12-06 22:20:51,950 INFO L138 BoogieDeclarations]: Found implementation of procedure load_mqd [2021-12-06 22:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-06 22:20:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-06 22:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-06 22:20:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-06 22:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-06 22:20:51,951 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-06 22:20:51,951 INFO L130 BoogieDeclarations]: Found specification of procedure kgd2kfd_interrupt [2021-12-06 22:20:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure kgd2kfd_interrupt [2021-12-06 22:20:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_del [2021-12-06 22:20:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_del [2021-12-06 22:20:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-06 22:20:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-06 22:20:51,952 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~~uint64_t~0 [2021-12-06 22:20:51,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~~uint64_t~0 [2021-12-06 22:20:51,953 INFO L130 BoogieDeclarations]: Found specification of procedure down_read [2021-12-06 22:20:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure down_read [2021-12-06 22:20:51,953 INFO L130 BoogieDeclarations]: Found specification of procedure hash_32 [2021-12-06 22:20:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure hash_32 [2021-12-06 22:20:51,953 INFO L130 BoogieDeclarations]: Found specification of procedure pm_send_runlist [2021-12-06 22:20:51,953 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_send_runlist [2021-12-06 22:20:51,953 INFO L130 BoogieDeclarations]: Found specification of procedure set_event [2021-12-06 22:20:51,954 INFO L138 BoogieDeclarations]: Found implementation of procedure set_event [2021-12-06 22:20:51,954 INFO L130 BoogieDeclarations]: Found specification of procedure up_write [2021-12-06 22:20:51,954 INFO L138 BoogieDeclarations]: Found implementation of procedure up_write [2021-12-06 22:20:51,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-06 22:20:51,954 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2021-12-06 22:20:51,954 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2021-12-06 22:20:51,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_gtt_sa_lock_of_kfd_dev [2021-12-06 22:20:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_gtt_sa_lock_of_kfd_dev [2021-12-06 22:20:51,955 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl_create_queue [2021-12-06 22:20:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl_create_queue [2021-12-06 22:20:51,955 INFO L130 BoogieDeclarations]: Found specification of procedure device_queue_manager_init [2021-12-06 22:20:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure device_queue_manager_init [2021-12-06 22:20:51,955 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_register_diq [2021-12-06 22:20:51,955 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_register_diq [2021-12-06 22:20:51,956 INFO L130 BoogieDeclarations]: Found specification of procedure init_queue [2021-12-06 22:20:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure init_queue [2021-12-06 22:20:51,956 INFO L130 BoogieDeclarations]: Found specification of procedure initialize_cpsch [2021-12-06 22:20:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure initialize_cpsch [2021-12-06 22:20:51,956 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-06 22:20:51,956 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-06 22:20:51,957 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_file [2021-12-06 22:20:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_file [2021-12-06 22:20:51,957 INFO L130 BoogieDeclarations]: Found specification of procedure interrupt_wq [2021-12-06 22:20:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure interrupt_wq [2021-12-06 22:20:51,957 INFO L130 BoogieDeclarations]: Found specification of procedure pqm_update_queue [2021-12-06 22:20:51,957 INFO L138 BoogieDeclarations]: Found implementation of procedure pqm_update_queue [2021-12-06 22:20:51,957 INFO L130 BoogieDeclarations]: Found specification of procedure find_process [2021-12-06 22:20:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure find_process [2021-12-06 22:20:51,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_packet_manager [2021-12-06 22:20:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_packet_manager [2021-12-06 22:20:51,958 INFO L130 BoogieDeclarations]: Found specification of procedure create_process [2021-12-06 22:20:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure create_process [2021-12-06 22:20:51,958 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_unregister_diq [2021-12-06 22:20:51,958 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_unregister_diq [2021-12-06 22:20:51,959 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_pasid_free [2021-12-06 22:20:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_pasid_free [2021-12-06 22:20:51,959 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~~bool~0 [2021-12-06 22:20:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~~bool~0 [2021-12-06 22:20:51,959 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-06 22:20:51,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-06 22:20:51,959 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_gtt_sa_fini [2021-12-06 22:20:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_gtt_sa_fini [2021-12-06 22:20:51,960 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2021-12-06 22:20:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2021-12-06 22:20:51,960 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl_dbg_register [2021-12-06 22:20:51,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl_dbg_register [2021-12-06 22:20:51,960 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_chardev_exit [2021-12-06 22:20:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_chardev_exit [2021-12-06 22:20:51,961 INFO L130 BoogieDeclarations]: Found specification of procedure is_power_of_2 [2021-12-06 22:20:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure is_power_of_2 [2021-12-06 22:20:51,961 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_address_watch_disable_nodiq [2021-12-06 22:20:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_address_watch_disable_nodiq [2021-12-06 22:20:51,961 INFO L130 BoogieDeclarations]: Found specification of procedure dbgdev_address_watch_set_registers [2021-12-06 22:20:51,961 INFO L138 BoogieDeclarations]: Found implementation of procedure dbgdev_address_watch_set_registers [2021-12-06 22:20:51,962 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_release_topology_device [2021-12-06 22:20:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_release_topology_device [2021-12-06 22:20:51,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-06 22:20:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-06 22:20:51,962 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_file [2021-12-06 22:20:51,962 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_file [2021-12-06 22:20:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-06 22:20:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-06 22:20:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_ioctl [2021-12-06 22:20:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_ioctl [2021-12-06 22:20:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure kobject_put [2021-12-06 22:20:51,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kobject_put [2021-12-06 22:20:51,963 INFO L130 BoogieDeclarations]: Found specification of procedure pm_uninit [2021-12-06 22:20:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_uninit [2021-12-06 22:20:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-12-06 22:20:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-12-06 22:20:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit [2021-12-06 22:20:51,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit [2021-12-06 22:20:51,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_kfd_process [2021-12-06 22:20:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_kfd_process [2021-12-06 22:20:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_gtt_sa_free [2021-12-06 22:20:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_gtt_sa_free [2021-12-06 22:20:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_remove_sysfs_node_entry [2021-12-06 22:20:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_remove_sysfs_node_entry [2021-12-06 22:20:51,965 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-06 22:20:51,965 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-06 22:20:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_process_wq_release [2021-12-06 22:20:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_process_wq_release [2021-12-06 22:20:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure get_first_pipe [2021-12-06 22:20:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure get_first_pipe [2021-12-06 22:20:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-06 22:20:51,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:20:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 22:20:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-06 22:20:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure kgd2kfd_suspend [2021-12-06 22:20:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kgd2kfd_suspend [2021-12-06 22:20:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_dbgmgr_register [2021-12-06 22:20:51,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_dbgmgr_register [2021-12-06 22:20:51,967 INFO L130 BoogieDeclarations]: Found specification of procedure kfd_release_live_view [2021-12-06 22:20:51,968 INFO L138 BoogieDeclarations]: Found implementation of procedure kfd_release_live_view [2021-12-06 22:20:53,018 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:20:53,022 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:20:53,327 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-06 22:21:41,916 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:21:41,946 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:21:41,946 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:21:41,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:21:41 BoogieIcfgContainer [2021-12-06 22:21:41,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:21:41,956 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:21:41,956 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:21:41,958 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:21:41,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:20:41" (1/3) ... [2021-12-06 22:21:41,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e791bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:21:41, skipping insertion in model container [2021-12-06 22:21:41,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:20:50" (2/3) ... [2021-12-06 22:21:41,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e791bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:21:41, skipping insertion in model container [2021-12-06 22:21:41,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:21:41" (3/3) ... [2021-12-06 22:21:41,961 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--gpu--drm--amd--amdkfd--amdkfd.ko-entry_point.cil.out.i [2021-12-06 22:21:41,964 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:21:41,965 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:21:42,015 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:21:42,021 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-12-06 22:21:42,021 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:21:42,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 5974 states, 4167 states have (on average 1.326373890088793) internal successors, (5527), 4264 states have internal predecessors, (5527), 1536 states have call successors, (1536), 270 states have call predecessors, (1536), 269 states have return successors, (1524), 1516 states have call predecessors, (1524), 1524 states have call successors, (1524) [2021-12-06 22:21:42,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-06 22:21:42,122 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:21:42,123 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:21:42,123 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:21:42,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:21:42,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1224506143, now seen corresponding path program 1 times [2021-12-06 22:21:42,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:21:42,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200419664] [2021-12-06 22:21:42,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:21:42,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:21:42,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:21:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:21:43,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:21:43,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 22:21:43,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:21:43,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:21:43,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 22:21:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 22:21:43,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 22:21:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:21:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:21:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:21:43,433 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:21:43,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:21:43,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200419664] [2021-12-06 22:21:43,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200419664] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:21:43,435 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:21:43,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:21:43,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605275094] [2021-12-06 22:21:43,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:21:43,440 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:21:43,440 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:21:43,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:21:43,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:21:43,472 INFO L87 Difference]: Start difference. First operand has 5974 states, 4167 states have (on average 1.326373890088793) internal successors, (5527), 4264 states have internal predecessors, (5527), 1536 states have call successors, (1536), 270 states have call predecessors, (1536), 269 states have return successors, (1524), 1516 states have call predecessors, (1524), 1524 states have call successors, (1524) Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 22:21:46,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:21:50,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:21:54,576 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:12,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:14,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:16,566 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:21,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:34,698 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:37,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:40,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:44,212 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:22:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:22:45,027 INFO L93 Difference]: Finished difference Result 13002 states and 19425 transitions. [2021-12-06 22:22:45,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:22:45,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 89 [2021-12-06 22:22:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:22:45,093 INFO L225 Difference]: With dead ends: 13002 [2021-12-06 22:22:45,093 INFO L226 Difference]: Without dead ends: 6873 [2021-12-06 22:22:45,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:22:45,138 INFO L933 BasicCegarLoop]: 8110 mSDtfsCounter, 10781 mSDsluCounter, 8245 mSDsCounter, 0 mSdLazyCounter, 5684 mSolverCounterSat, 5779 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11814 SdHoareTripleChecker+Valid, 16355 SdHoareTripleChecker+Invalid, 11473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5779 IncrementalHoareTripleChecker+Valid, 5684 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.8s IncrementalHoareTripleChecker+Time [2021-12-06 22:22:45,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11814 Valid, 16355 Invalid, 11473 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5779 Valid, 5684 Invalid, 10 Unknown, 0 Unchecked, 60.8s Time] [2021-12-06 22:22:45,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2021-12-06 22:22:45,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 5877. [2021-12-06 22:22:45,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 4064 states have (on average 1.298720472440945) internal successors, (5278), 4148 states have internal predecessors, (5278), 1533 states have call successors, (1533), 280 states have call predecessors, (1533), 279 states have return successors, (1503), 1494 states have call predecessors, (1503), 1503 states have call successors, (1503) [2021-12-06 22:22:45,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 8314 transitions. [2021-12-06 22:22:45,659 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 8314 transitions. Word has length 89 [2021-12-06 22:22:45,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:22:45,660 INFO L470 AbstractCegarLoop]: Abstraction has 5877 states and 8314 transitions. [2021-12-06 22:22:45,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 22:22:45,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 8314 transitions. [2021-12-06 22:22:45,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-06 22:22:45,667 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:22:45,667 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:22:45,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:22:45,668 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:22:45,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:22:45,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1417169859, now seen corresponding path program 1 times [2021-12-06 22:22:45,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:22:45,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821706574] [2021-12-06 22:22:45,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:22:45,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:22:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:22:46,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:22:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:22:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 22:22:46,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:22:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:22:46,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 22:22:46,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 22:22:46,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 22:22:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:22:46,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:22:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:22:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:22:46,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:22:46,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821706574] [2021-12-06 22:22:46,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821706574] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:22:46,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:22:46,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:22:46,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833474223] [2021-12-06 22:22:46,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:22:46,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:22:46,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:22:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:22:46,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:22:46,507 INFO L87 Difference]: Start difference. First operand 5877 states and 8314 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 22:22:51,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:22:54,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:22:56,093 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:00,603 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:02,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:07,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:09,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:15,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:18,435 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:25,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:29,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:31,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:34,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:36,774 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:40,161 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:42,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:45,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:50,890 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:52,928 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:23:59,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:24:16,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:24:18,036 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:24:22,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:24:26,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:24:33,150 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:24:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:24:34,741 INFO L93 Difference]: Finished difference Result 12726 states and 18285 transitions. [2021-12-06 22:24:34,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:24:34,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 90 [2021-12-06 22:24:34,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:24:34,781 INFO L225 Difference]: With dead ends: 12726 [2021-12-06 22:24:34,781 INFO L226 Difference]: Without dead ends: 6864 [2021-12-06 22:24:34,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:24:34,802 INFO L933 BasicCegarLoop]: 7833 mSDtfsCounter, 9033 mSDsluCounter, 10533 mSDsCounter, 0 mSdLazyCounter, 8093 mSolverCounterSat, 3816 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10058 SdHoareTripleChecker+Valid, 18366 SdHoareTripleChecker+Invalid, 11927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3816 IncrementalHoareTripleChecker+Valid, 8093 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 107.5s IncrementalHoareTripleChecker+Time [2021-12-06 22:24:34,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10058 Valid, 18366 Invalid, 11927 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3816 Valid, 8093 Invalid, 18 Unknown, 0 Unchecked, 107.5s Time] [2021-12-06 22:24:34,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6864 states. [2021-12-06 22:24:35,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6864 to 5877. [2021-12-06 22:24:35,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5877 states, 4064 states have (on average 1.298474409448819) internal successors, (5277), 4148 states have internal predecessors, (5277), 1533 states have call successors, (1533), 280 states have call predecessors, (1533), 279 states have return successors, (1503), 1494 states have call predecessors, (1503), 1503 states have call successors, (1503) [2021-12-06 22:24:35,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5877 states to 5877 states and 8313 transitions. [2021-12-06 22:24:35,166 INFO L78 Accepts]: Start accepts. Automaton has 5877 states and 8313 transitions. Word has length 90 [2021-12-06 22:24:35,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:24:35,167 INFO L470 AbstractCegarLoop]: Abstraction has 5877 states and 8313 transitions. [2021-12-06 22:24:35,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (8), 5 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-06 22:24:35,167 INFO L276 IsEmpty]: Start isEmpty. Operand 5877 states and 8313 transitions. [2021-12-06 22:24:35,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-06 22:24:35,173 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:24:35,173 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:24:35,173 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 22:24:35,173 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:24:35,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:24:35,174 INFO L85 PathProgramCache]: Analyzing trace with hash -446252348, now seen corresponding path program 1 times [2021-12-06 22:24:35,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:24:35,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835380667] [2021-12-06 22:24:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:24:35,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:24:35,405 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:24:35,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1235884335] [2021-12-06 22:24:35,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:24:35,405 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:24:35,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:24:35,406 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:24:35,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-06 22:24:37,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:37,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 12816 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:24:37,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:24:37,449 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:24:37,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:24:37,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:24:37,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835380667] [2021-12-06 22:24:37,450 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:24:37,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235884335] [2021-12-06 22:24:37,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235884335] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:24:37,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:24:37,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:24:37,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681404007] [2021-12-06 22:24:37,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:24:37,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:24:37,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:24:37,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:24:37,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:24:37,452 INFO L87 Difference]: Start difference. First operand 5877 states and 8313 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:24:37,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:24:37,769 INFO L93 Difference]: Finished difference Result 16971 states and 24445 transitions. [2021-12-06 22:24:37,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:24:37,769 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 105 [2021-12-06 22:24:37,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:24:37,833 INFO L225 Difference]: With dead ends: 16971 [2021-12-06 22:24:37,833 INFO L226 Difference]: Without dead ends: 11109 [2021-12-06 22:24:37,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:24:37,862 INFO L933 BasicCegarLoop]: 9804 mSDtfsCounter, 8163 mSDsluCounter, 7448 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8163 SdHoareTripleChecker+Valid, 17252 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:24:37,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8163 Valid, 17252 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:24:37,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11109 states. [2021-12-06 22:24:38,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11109 to 11090. [2021-12-06 22:24:38,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11090 states, 7663 states have (on average 1.2936186871982251) internal successors, (9913), 7793 states have internal predecessors, (9913), 2879 states have call successors, (2879), 546 states have call predecessors, (2879), 547 states have return successors, (3008), 2832 states have call predecessors, (3008), 2846 states have call successors, (3008) [2021-12-06 22:24:38,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11090 states to 11090 states and 15800 transitions. [2021-12-06 22:24:38,606 INFO L78 Accepts]: Start accepts. Automaton has 11090 states and 15800 transitions. Word has length 105 [2021-12-06 22:24:38,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:24:38,606 INFO L470 AbstractCegarLoop]: Abstraction has 11090 states and 15800 transitions. [2021-12-06 22:24:38,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:24:38,607 INFO L276 IsEmpty]: Start isEmpty. Operand 11090 states and 15800 transitions. [2021-12-06 22:24:38,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-06 22:24:38,610 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:24:38,611 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:24:38,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:24:38,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:24:38,812 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:24:38,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:24:38,815 INFO L85 PathProgramCache]: Analyzing trace with hash -951463398, now seen corresponding path program 1 times [2021-12-06 22:24:38,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:24:38,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008797248] [2021-12-06 22:24:38,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:24:38,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:24:39,084 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:24:39,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1734916713] [2021-12-06 22:24:39,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:24:39,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:24:39,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:24:39,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:24:39,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-06 22:24:40,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:40,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 12818 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:24:40,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:24:41,133 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:24:41,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:24:41,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:24:41,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008797248] [2021-12-06 22:24:41,133 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:24:41,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734916713] [2021-12-06 22:24:41,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734916713] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:24:41,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:24:41,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:24:41,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323116814] [2021-12-06 22:24:41,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:24:41,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:24:41,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:24:41,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:24:41,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:24:41,136 INFO L87 Difference]: Start difference. First operand 11090 states and 15800 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:24:41,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:24:41,359 INFO L93 Difference]: Finished difference Result 11118 states and 15818 transitions. [2021-12-06 22:24:41,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:24:41,360 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 106 [2021-12-06 22:24:41,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:24:41,401 INFO L225 Difference]: With dead ends: 11118 [2021-12-06 22:24:41,401 INFO L226 Difference]: Without dead ends: 11114 [2021-12-06 22:24:41,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:24:41,409 INFO L933 BasicCegarLoop]: 8243 mSDtfsCounter, 8143 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8143 SdHoareTripleChecker+Valid, 8274 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:24:41,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8143 Valid, 8274 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:24:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11114 states. [2021-12-06 22:24:42,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11114 to 11112. [2021-12-06 22:24:42,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11112 states, 7679 states have (on average 1.292616226071103) internal successors, (9926), 7807 states have internal predecessors, (9926), 2877 states have call successors, (2877), 554 states have call predecessors, (2877), 555 states have return successors, (3008), 2832 states have call predecessors, (3008), 2846 states have call successors, (3008) [2021-12-06 22:24:42,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11112 states to 11112 states and 15811 transitions. [2021-12-06 22:24:42,073 INFO L78 Accepts]: Start accepts. Automaton has 11112 states and 15811 transitions. Word has length 106 [2021-12-06 22:24:42,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:24:42,073 INFO L470 AbstractCegarLoop]: Abstraction has 11112 states and 15811 transitions. [2021-12-06 22:24:42,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:24:42,074 INFO L276 IsEmpty]: Start isEmpty. Operand 11112 states and 15811 transitions. [2021-12-06 22:24:42,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-06 22:24:42,077 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:24:42,077 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:24:42,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-06 22:24:42,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:24:42,278 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:24:42,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:24:42,278 INFO L85 PathProgramCache]: Analyzing trace with hash -80488123, now seen corresponding path program 1 times [2021-12-06 22:24:42,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:24:42,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638448709] [2021-12-06 22:24:42,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:24:42,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:24:42,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:24:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:24:42,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:24:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 22:24:42,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:24:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:24:42,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 22:24:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 22:24:42,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 22:24:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:24:42,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:24:42,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-06 22:24:42,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:24:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:24:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-06 22:24:42,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:24:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:24:42,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-06 22:24:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:24:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-12-06 22:24:42,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:24:42,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638448709] [2021-12-06 22:24:42,884 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638448709] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:24:42,884 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:24:42,884 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:24:42,884 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695442113] [2021-12-06 22:24:42,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:24:42,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:24:42,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:24:42,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:24:42,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:24:42,885 INFO L87 Difference]: Start difference. First operand 11112 states and 15811 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 22:24:47,453 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:24:49,204 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:24:53,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:24:59,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:01,086 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:03,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:25:21,754 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:23,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:25,935 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:27,711 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:30,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:37,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:41,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:43,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:48,812 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:53,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:55,347 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:25:59,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:26:04,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:26:06,942 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:26:23,800 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:26:37,582 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:26:39,626 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:26:45,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:26:47,851 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:27:00,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:27:03,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:03,655 INFO L93 Difference]: Finished difference Result 36968 states and 53662 transitions. [2021-12-06 22:27:03,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:27:03,656 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 124 [2021-12-06 22:27:03,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:27:03,752 INFO L225 Difference]: With dead ends: 36968 [2021-12-06 22:27:03,752 INFO L226 Difference]: Without dead ends: 25871 [2021-12-06 22:27:03,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:27:03,794 INFO L933 BasicCegarLoop]: 9015 mSDtfsCounter, 11046 mSDsluCounter, 18163 mSDsCounter, 0 mSdLazyCounter, 14137 mSolverCounterSat, 5801 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 128.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12527 SdHoareTripleChecker+Valid, 27178 SdHoareTripleChecker+Invalid, 19955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5801 IncrementalHoareTripleChecker+Valid, 14137 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.2s IncrementalHoareTripleChecker+Time [2021-12-06 22:27:03,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12527 Valid, 27178 Invalid, 19955 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5801 Valid, 14137 Invalid, 17 Unknown, 0 Unchecked, 139.2s Time] [2021-12-06 22:27:03,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25871 states. [2021-12-06 22:27:05,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25871 to 23024. [2021-12-06 22:27:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23024 states, 15922 states have (on average 1.2906670016329607) internal successors, (20550), 16188 states have internal predecessors, (20550), 5869 states have call successors, (5869), 1084 states have call predecessors, (5869), 1232 states have return successors, (6742), 5927 states have call predecessors, (6742), 5838 states have call successors, (6742) [2021-12-06 22:27:05,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23024 states to 23024 states and 33161 transitions. [2021-12-06 22:27:05,255 INFO L78 Accepts]: Start accepts. Automaton has 23024 states and 33161 transitions. Word has length 124 [2021-12-06 22:27:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:27:05,255 INFO L470 AbstractCegarLoop]: Abstraction has 23024 states and 33161 transitions. [2021-12-06 22:27:05,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2021-12-06 22:27:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 23024 states and 33161 transitions. [2021-12-06 22:27:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-06 22:27:05,259 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:27:05,259 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:27:05,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-06 22:27:05,259 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:27:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:05,259 INFO L85 PathProgramCache]: Analyzing trace with hash 566868103, now seen corresponding path program 1 times [2021-12-06 22:27:05,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:05,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035477512] [2021-12-06 22:27:05,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:05,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:05,432 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:27:05,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1019884844] [2021-12-06 22:27:05,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:05,433 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:27:05,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:27:05,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:27:05,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-06 22:27:07,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:07,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 12820 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:27:07,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:27:07,487 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:27:07,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:27:07,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:07,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035477512] [2021-12-06 22:27:07,487 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:27:07,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019884844] [2021-12-06 22:27:07,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019884844] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:27:07,488 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:27:07,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:27:07,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011918943] [2021-12-06 22:27:07,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:27:07,488 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:27:07,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:07,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:27:07,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:27:07,489 INFO L87 Difference]: Start difference. First operand 23024 states and 33161 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:27:07,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:27:07,966 INFO L93 Difference]: Finished difference Result 23568 states and 33711 transitions. [2021-12-06 22:27:07,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:27:07,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 107 [2021-12-06 22:27:07,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:27:08,042 INFO L225 Difference]: With dead ends: 23568 [2021-12-06 22:27:08,042 INFO L226 Difference]: Without dead ends: 23564 [2021-12-06 22:27:08,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:27:08,055 INFO L933 BasicCegarLoop]: 8271 mSDtfsCounter, 7767 mSDsluCounter, 526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7767 SdHoareTripleChecker+Valid, 8797 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:27:08,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7767 Valid, 8797 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:27:08,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23564 states. [2021-12-06 22:27:09,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23564 to 23534. [2021-12-06 22:27:09,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23534 states, 16266 states have (on average 1.2871634083364072) internal successors, (20937), 16530 states have internal predecessors, (20937), 5931 states have call successors, (5931), 1188 states have call predecessors, (5931), 1336 states have return successors, (6802), 5991 states have call predecessors, (6802), 5902 states have call successors, (6802) [2021-12-06 22:27:09,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23534 states to 23534 states and 33670 transitions. [2021-12-06 22:27:09,398 INFO L78 Accepts]: Start accepts. Automaton has 23534 states and 33670 transitions. Word has length 107 [2021-12-06 22:27:09,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:27:09,398 INFO L470 AbstractCegarLoop]: Abstraction has 23534 states and 33670 transitions. [2021-12-06 22:27:09,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:27:09,398 INFO L276 IsEmpty]: Start isEmpty. Operand 23534 states and 33670 transitions. [2021-12-06 22:27:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 22:27:09,402 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:27:09,402 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-06 22:27:09,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-06 22:27:09,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:27:09,602 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:27:09,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:27:09,603 INFO L85 PathProgramCache]: Analyzing trace with hash 1147793104, now seen corresponding path program 1 times [2021-12-06 22:27:09,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:27:09,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042708384] [2021-12-06 22:27:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:27:09,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:27:09,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:09,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-06 22:27:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:27:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:27:10,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-06 22:27:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:27:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:27:10,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-06 22:27:10,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-06 22:27:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-06 22:27:10,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-06 22:27:10,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-06 22:27:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2021-12-06 22:27:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-06 22:27:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:27:10,127 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-06 22:27:10,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:27:10,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042708384] [2021-12-06 22:27:10,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042708384] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:27:10,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:27:10,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-06 22:27:10,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491497139] [2021-12-06 22:27:10,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:27:10,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-06 22:27:10,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:27:10,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-06 22:27:10,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-06 22:27:10,129 INFO L87 Difference]: Start difference. First operand 23534 states and 33670 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 22:27:15,579 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:27:17,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:27:24,482 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-06 22:27:29,803 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:27:31,825 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:27:42,642 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:27:44,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:27:54,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:27:56,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:01,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:02,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:08,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:10,134 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:12,945 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:14,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:17,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:19,146 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:24,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:28,492 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:32,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:34,374 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:42,619 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:28:59,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:29:09,766 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:29:11,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:29:21,934 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:29:23,977 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:29:36,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:29:38,237 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:29:57,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:01,361 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:03,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:09,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:11,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:21,063 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:31,540 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:33,581 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:38,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:39,312 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:44,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:46,799 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:48,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:51,254 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:53,290 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-06 22:30:57,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:30:57,807 INFO L93 Difference]: Finished difference Result 76150 states and 110196 transitions. [2021-12-06 22:30:57,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-06 22:30:57,808 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 112 [2021-12-06 22:30:57,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:30:57,983 INFO L225 Difference]: With dead ends: 76150 [2021-12-06 22:30:57,983 INFO L226 Difference]: Without dead ends: 52631 [2021-12-06 22:30:58,102 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-06 22:30:58,102 INFO L933 BasicCegarLoop]: 13690 mSDtfsCounter, 9711 mSDsluCounter, 25311 mSDsCounter, 0 mSdLazyCounter, 16403 mSolverCounterSat, 4482 mSolverCounterUnsat, 31 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 202.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11182 SdHoareTripleChecker+Valid, 39001 SdHoareTripleChecker+Invalid, 20916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 4482 IncrementalHoareTripleChecker+Valid, 16403 IncrementalHoareTripleChecker+Invalid, 31 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 225.1s IncrementalHoareTripleChecker+Time [2021-12-06 22:30:58,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11182 Valid, 39001 Invalid, 20916 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [4482 Valid, 16403 Invalid, 31 Unknown, 0 Unchecked, 225.1s Time] [2021-12-06 22:30:58,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52631 states. [2021-12-06 22:31:00,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52631 to 46804. [2021-12-06 22:31:00,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46804 states, 32363 states have (on average 1.2869944071933999) internal successors, (41651), 32869 states have internal predecessors, (41651), 11788 states have call successors, (11788), 2354 states have call predecessors, (11788), 2652 states have return successors, (13541), 11932 states have call predecessors, (13541), 11759 states have call successors, (13541) [2021-12-06 22:31:00,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46804 states to 46804 states and 66980 transitions. [2021-12-06 22:31:00,945 INFO L78 Accepts]: Start accepts. Automaton has 46804 states and 66980 transitions. Word has length 112 [2021-12-06 22:31:00,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:31:00,946 INFO L470 AbstractCegarLoop]: Abstraction has 46804 states and 66980 transitions. [2021-12-06 22:31:00,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-06 22:31:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 46804 states and 66980 transitions. [2021-12-06 22:31:00,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-12-06 22:31:00,948 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:31:00,948 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:31:00,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-06 22:31:00,948 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:31:00,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:31:00,948 INFO L85 PathProgramCache]: Analyzing trace with hash 390509245, now seen corresponding path program 1 times [2021-12-06 22:31:00,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:31:00,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730765510] [2021-12-06 22:31:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:00,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:31:01,116 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:31:01,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [313682248] [2021-12-06 22:31:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:01,116 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:31:01,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:31:01,117 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:31:01,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-06 22:31:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:31:02,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 12822 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:31:02,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:31:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:31:03,158 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:31:03,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:31:03,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730765510] [2021-12-06 22:31:03,158 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:31:03,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313682248] [2021-12-06 22:31:03,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313682248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:31:03,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:31:03,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:31:03,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100798715] [2021-12-06 22:31:03,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:31:03,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:31:03,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:31:03,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:31:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:03,160 INFO L87 Difference]: Start difference. First operand 46804 states and 66980 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:04,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:31:04,256 INFO L93 Difference]: Finished difference Result 46904 states and 67046 transitions. [2021-12-06 22:31:04,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:31:04,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 108 [2021-12-06 22:31:04,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:31:04,416 INFO L225 Difference]: With dead ends: 46904 [2021-12-06 22:31:04,417 INFO L226 Difference]: Without dead ends: 46900 [2021-12-06 22:31:04,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:04,432 INFO L933 BasicCegarLoop]: 8233 mSDtfsCounter, 8068 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8068 SdHoareTripleChecker+Valid, 8329 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:31:04,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8068 Valid, 8329 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:31:04,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46900 states. [2021-12-06 22:31:07,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46900 to 46898. [2021-12-06 22:31:07,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46898 states, 32427 states have (on average 1.286150430197058) internal successors, (41706), 32931 states have internal predecessors, (41706), 11786 states have call successors, (11786), 2386 states have call predecessors, (11786), 2684 states have return successors, (13541), 11932 states have call predecessors, (13541), 11759 states have call successors, (13541) [2021-12-06 22:31:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46898 states to 46898 states and 67033 transitions. [2021-12-06 22:31:07,368 INFO L78 Accepts]: Start accepts. Automaton has 46898 states and 67033 transitions. Word has length 108 [2021-12-06 22:31:07,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:31:07,368 INFO L470 AbstractCegarLoop]: Abstraction has 46898 states and 67033 transitions. [2021-12-06 22:31:07,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:07,368 INFO L276 IsEmpty]: Start isEmpty. Operand 46898 states and 67033 transitions. [2021-12-06 22:31:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2021-12-06 22:31:07,371 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:31:07,371 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:31:07,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-06 22:31:07,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:31:07,572 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:31:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:31:07,572 INFO L85 PathProgramCache]: Analyzing trace with hash -781643190, now seen corresponding path program 1 times [2021-12-06 22:31:07,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:31:07,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608198487] [2021-12-06 22:31:07,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:07,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:31:07,809 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:31:07,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [16113440] [2021-12-06 22:31:07,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:07,809 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:31:07,809 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:31:07,810 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:31:07,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-06 22:31:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:31:09,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 12824 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:31:09,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:31:09,738 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:31:09,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:31:09,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:31:09,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608198487] [2021-12-06 22:31:09,738 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:31:09,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16113440] [2021-12-06 22:31:09,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16113440] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:31:09,738 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:31:09,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:31:09,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425401834] [2021-12-06 22:31:09,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:31:09,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:31:09,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:31:09,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:31:09,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:09,739 INFO L87 Difference]: Start difference. First operand 46898 states and 67033 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:11,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:31:11,059 INFO L93 Difference]: Finished difference Result 46900 states and 67034 transitions. [2021-12-06 22:31:11,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:31:11,060 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 109 [2021-12-06 22:31:11,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:31:11,207 INFO L225 Difference]: With dead ends: 46900 [2021-12-06 22:31:11,207 INFO L226 Difference]: Without dead ends: 46897 [2021-12-06 22:31:11,228 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:11,229 INFO L933 BasicCegarLoop]: 8232 mSDtfsCounter, 8156 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8156 SdHoareTripleChecker+Valid, 8232 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:31:11,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8156 Valid, 8232 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:31:11,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46897 states. [2021-12-06 22:31:14,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46897 to 46897. [2021-12-06 22:31:14,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46897 states, 32427 states have (on average 1.2861195916982762) internal successors, (41705), 32930 states have internal predecessors, (41705), 11785 states have call successors, (11785), 2386 states have call predecessors, (11785), 2684 states have return successors, (13541), 11932 states have call predecessors, (13541), 11759 states have call successors, (13541) [2021-12-06 22:31:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46897 states to 46897 states and 67031 transitions. [2021-12-06 22:31:14,467 INFO L78 Accepts]: Start accepts. Automaton has 46897 states and 67031 transitions. Word has length 109 [2021-12-06 22:31:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:31:14,467 INFO L470 AbstractCegarLoop]: Abstraction has 46897 states and 67031 transitions. [2021-12-06 22:31:14,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 46897 states and 67031 transitions. [2021-12-06 22:31:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-12-06 22:31:14,469 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:31:14,469 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:31:14,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-06 22:31:14,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-06 22:31:14,670 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:31:14,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:31:14,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1536341856, now seen corresponding path program 1 times [2021-12-06 22:31:14,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:31:14,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833426240] [2021-12-06 22:31:14,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:14,671 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:31:14,842 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:31:14,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [287365109] [2021-12-06 22:31:14,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:14,842 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:31:14,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:31:14,843 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:31:14,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-06 22:31:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:31:16,480 INFO L263 TraceCheckSpWp]: Trace formula consists of 12826 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:31:16,486 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:31:16,822 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:31:16,822 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:31:16,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:31:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833426240] [2021-12-06 22:31:16,822 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:31:16,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287365109] [2021-12-06 22:31:16,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287365109] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:31:16,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:31:16,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:31:16,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834580654] [2021-12-06 22:31:16,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:31:16,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:31:16,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:31:16,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:31:16,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:16,823 INFO L87 Difference]: Start difference. First operand 46897 states and 67031 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:19,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:31:19,597 INFO L93 Difference]: Finished difference Result 137524 states and 202068 transitions. [2021-12-06 22:31:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:31:19,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 110 [2021-12-06 22:31:19,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:31:19,947 INFO L225 Difference]: With dead ends: 137524 [2021-12-06 22:31:19,948 INFO L226 Difference]: Without dead ends: 90642 [2021-12-06 22:31:20,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:20,140 INFO L933 BasicCegarLoop]: 9764 mSDtfsCounter, 8116 mSDsluCounter, 7428 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8116 SdHoareTripleChecker+Valid, 17192 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:31:20,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8116 Valid, 17192 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:31:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90642 states. [2021-12-06 22:31:25,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90642 to 90581. [2021-12-06 22:31:25,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90581 states, 62567 states have (on average 1.2839995524797416) internal successors, (80336), 63480 states have internal predecessors, (80336), 22713 states have call successors, (22713), 4719 states have call predecessors, (22713), 5300 states have return successors, (28077), 23017 states have call predecessors, (28077), 22687 states have call successors, (28077) [2021-12-06 22:31:26,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90581 states to 90581 states and 131126 transitions. [2021-12-06 22:31:26,108 INFO L78 Accepts]: Start accepts. Automaton has 90581 states and 131126 transitions. Word has length 110 [2021-12-06 22:31:26,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:31:26,108 INFO L470 AbstractCegarLoop]: Abstraction has 90581 states and 131126 transitions. [2021-12-06 22:31:26,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:26,108 INFO L276 IsEmpty]: Start isEmpty. Operand 90581 states and 131126 transitions. [2021-12-06 22:31:26,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-12-06 22:31:26,111 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:31:26,111 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:31:26,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-06 22:31:26,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-06 22:31:26,313 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:31:26,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:31:26,314 INFO L85 PathProgramCache]: Analyzing trace with hash 379439117, now seen corresponding path program 1 times [2021-12-06 22:31:26,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:31:26,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946302594] [2021-12-06 22:31:26,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:26,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:31:26,509 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:31:26,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1155110786] [2021-12-06 22:31:26,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:26,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:31:26,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:31:26,510 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:31:26,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-06 22:31:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:31:28,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 12828 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:31:28,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:31:28,399 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:31:28,399 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:31:28,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:31:28,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946302594] [2021-12-06 22:31:28,400 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:31:28,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155110786] [2021-12-06 22:31:28,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155110786] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:31:28,400 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:31:28,400 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:31:28,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445508576] [2021-12-06 22:31:28,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:31:28,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:31:28,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:31:28,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:31:28,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:28,401 INFO L87 Difference]: Start difference. First operand 90581 states and 131126 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:31,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:31:31,005 INFO L93 Difference]: Finished difference Result 90583 states and 131127 transitions. [2021-12-06 22:31:31,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:31:31,006 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 111 [2021-12-06 22:31:31,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:31:31,367 INFO L225 Difference]: With dead ends: 90583 [2021-12-06 22:31:31,367 INFO L226 Difference]: Without dead ends: 90580 [2021-12-06 22:31:31,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:31,396 INFO L933 BasicCegarLoop]: 8228 mSDtfsCounter, 8150 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8150 SdHoareTripleChecker+Valid, 8228 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:31:31,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8150 Valid, 8228 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:31:31,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90580 states. [2021-12-06 22:31:36,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90580 to 90580. [2021-12-06 22:31:36,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90580 states, 62567 states have (on average 1.2839835696133746) internal successors, (80335), 63479 states have internal predecessors, (80335), 22712 states have call successors, (22712), 4719 states have call predecessors, (22712), 5300 states have return successors, (28077), 23017 states have call predecessors, (28077), 22687 states have call successors, (28077) [2021-12-06 22:31:37,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90580 states to 90580 states and 131124 transitions. [2021-12-06 22:31:37,081 INFO L78 Accepts]: Start accepts. Automaton has 90580 states and 131124 transitions. Word has length 111 [2021-12-06 22:31:37,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:31:37,081 INFO L470 AbstractCegarLoop]: Abstraction has 90580 states and 131124 transitions. [2021-12-06 22:31:37,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:37,082 INFO L276 IsEmpty]: Start isEmpty. Operand 90580 states and 131124 transitions. [2021-12-06 22:31:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-12-06 22:31:37,084 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:31:37,084 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:31:37,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-06 22:31:37,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-06 22:31:37,286 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:31:37,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:31:37,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1124802557, now seen corresponding path program 1 times [2021-12-06 22:31:37,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:31:37,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419443714] [2021-12-06 22:31:37,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:37,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:31:37,480 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:31:37,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1193195248] [2021-12-06 22:31:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:37,480 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:31:37,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:31:37,481 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:31:37,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-06 22:31:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:31:39,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 12830 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:31:39,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:31:39,363 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:31:39,363 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:31:39,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:31:39,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419443714] [2021-12-06 22:31:39,364 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:31:39,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193195248] [2021-12-06 22:31:39,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193195248] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:31:39,364 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:31:39,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:31:39,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494174519] [2021-12-06 22:31:39,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:31:39,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:31:39,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:31:39,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:31:39,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:39,365 INFO L87 Difference]: Start difference. First operand 90580 states and 131124 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:31:45,715 INFO L93 Difference]: Finished difference Result 268116 states and 410483 transitions. [2021-12-06 22:31:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:31:45,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 112 [2021-12-06 22:31:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:31:46,551 INFO L225 Difference]: With dead ends: 268116 [2021-12-06 22:31:46,551 INFO L226 Difference]: Without dead ends: 177551 [2021-12-06 22:31:46,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:31:46,885 INFO L933 BasicCegarLoop]: 10224 mSDtfsCounter, 8108 mSDsluCounter, 8233 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8108 SdHoareTripleChecker+Valid, 18457 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:31:46,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8108 Valid, 18457 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:31:46,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177551 states. [2021-12-06 22:31:58,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177551 to 176879. [2021-12-06 22:31:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176879 states, 122583 states have (on average 1.284884527218293) internal successors, (157505), 124528 states have internal predecessors, (157505), 43943 states have call successors, (43943), 9388 states have call predecessors, (43943), 10352 states have return successors, (65031), 44202 states have call predecessors, (65031), 43905 states have call successors, (65031) [2021-12-06 22:31:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176879 states to 176879 states and 266479 transitions. [2021-12-06 22:31:59,613 INFO L78 Accepts]: Start accepts. Automaton has 176879 states and 266479 transitions. Word has length 112 [2021-12-06 22:31:59,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:31:59,614 INFO L470 AbstractCegarLoop]: Abstraction has 176879 states and 266479 transitions. [2021-12-06 22:31:59,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:31:59,614 INFO L276 IsEmpty]: Start isEmpty. Operand 176879 states and 266479 transitions. [2021-12-06 22:31:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-12-06 22:31:59,616 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:31:59,616 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:31:59,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-06 22:31:59,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-06 22:31:59,819 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:31:59,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:31:59,820 INFO L85 PathProgramCache]: Analyzing trace with hash -511649328, now seen corresponding path program 1 times [2021-12-06 22:31:59,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:31:59,820 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188373051] [2021-12-06 22:31:59,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:31:59,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:32:00,008 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:32:00,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2005409616] [2021-12-06 22:32:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:32:00,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:32:00,009 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:32:00,009 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:32:00,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-06 22:32:01,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:32:01,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 12832 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:32:01,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:32:01,866 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:32:01,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:32:01,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:32:01,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188373051] [2021-12-06 22:32:01,866 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:32:01,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005409616] [2021-12-06 22:32:01,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005409616] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:32:01,866 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:32:01,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:32:01,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21365274] [2021-12-06 22:32:01,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:32:01,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:32:01,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:32:01,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:32:01,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:32:01,868 INFO L87 Difference]: Start difference. First operand 176879 states and 266479 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:32:15,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:32:15,979 INFO L93 Difference]: Finished difference Result 521996 states and 844438 transitions. [2021-12-06 22:32:15,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:32:15,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 113 [2021-12-06 22:32:15,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:32:17,928 INFO L225 Difference]: With dead ends: 521996 [2021-12-06 22:32:17,928 INFO L226 Difference]: Without dead ends: 345132 [2021-12-06 22:32:19,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:32:19,074 INFO L933 BasicCegarLoop]: 9745 mSDtfsCounter, 8189 mSDsluCounter, 7353 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8189 SdHoareTripleChecker+Valid, 17098 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:32:19,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8189 Valid, 17098 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:32:19,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345132 states. [2021-12-06 22:32:40,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345132 to 344523. [2021-12-06 22:32:41,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344523 states, 238943 states have (on average 1.2842225970210468) internal successors, (306856), 242814 states have internal predecessors, (306856), 85243 states have call successors, (85243), 18637 states have call predecessors, (85243), 20336 states have return successors, (144187), 85407 states have call predecessors, (144187), 85201 states have call successors, (144187) [2021-12-06 22:32:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344523 states to 344523 states and 536286 transitions. [2021-12-06 22:32:44,250 INFO L78 Accepts]: Start accepts. Automaton has 344523 states and 536286 transitions. Word has length 113 [2021-12-06 22:32:44,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:32:44,251 INFO L470 AbstractCegarLoop]: Abstraction has 344523 states and 536286 transitions. [2021-12-06 22:32:44,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 2 states have internal predecessors, (65), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:32:44,251 INFO L276 IsEmpty]: Start isEmpty. Operand 344523 states and 536286 transitions. [2021-12-06 22:32:44,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-06 22:32:44,254 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:32:44,254 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:32:44,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-06 22:32:44,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:32:44,456 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:32:44,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:32:44,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1316236454, now seen corresponding path program 1 times [2021-12-06 22:32:44,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:32:44,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148598638] [2021-12-06 22:32:44,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:32:44,459 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:32:44,682 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:32:44,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [556780077] [2021-12-06 22:32:44,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:32:44,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:32:44,682 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:32:44,683 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:32:44,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-06 22:32:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:32:46,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 12834 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:32:46,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:32:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:32:46,787 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:32:46,787 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:32:46,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148598638] [2021-12-06 22:32:46,787 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:32:46,787 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556780077] [2021-12-06 22:32:46,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [556780077] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:32:46,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:32:46,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:32:46,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648778814] [2021-12-06 22:32:46,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:32:46,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:32:46,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:32:46,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:32:46,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:32:46,788 INFO L87 Difference]: Start difference. First operand 344523 states and 536286 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:32:58,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 22:32:58,532 INFO L93 Difference]: Finished difference Result 344525 states and 536287 transitions. [2021-12-06 22:32:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-06 22:32:58,533 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 114 [2021-12-06 22:32:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 22:33:00,244 INFO L225 Difference]: With dead ends: 344525 [2021-12-06 22:33:00,244 INFO L226 Difference]: Without dead ends: 344522 [2021-12-06 22:33:00,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:33:00,390 INFO L933 BasicCegarLoop]: 8224 mSDtfsCounter, 8143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8143 SdHoareTripleChecker+Valid, 8224 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-06 22:33:00,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8143 Valid, 8224 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 22:33:00,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344522 states. [2021-12-06 22:33:23,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344522 to 344522. [2021-12-06 22:33:23,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344522 states, 238943 states have (on average 1.2842184119225086) internal successors, (306855), 242813 states have internal predecessors, (306855), 85242 states have call successors, (85242), 18637 states have call predecessors, (85242), 20336 states have return successors, (144187), 85407 states have call predecessors, (144187), 85201 states have call successors, (144187) [2021-12-06 22:33:26,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344522 states to 344522 states and 536284 transitions. [2021-12-06 22:33:26,675 INFO L78 Accepts]: Start accepts. Automaton has 344522 states and 536284 transitions. Word has length 114 [2021-12-06 22:33:26,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 22:33:26,676 INFO L470 AbstractCegarLoop]: Abstraction has 344522 states and 536284 transitions. [2021-12-06 22:33:26,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 2 states have internal predecessors, (66), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2021-12-06 22:33:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 344522 states and 536284 transitions. [2021-12-06 22:33:26,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-12-06 22:33:26,679 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:33:26,679 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-06 22:33:26,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-06 22:33:26,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-06 22:33:26,881 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:33:26,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:33:26,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2146125715, now seen corresponding path program 1 times [2021-12-06 22:33:26,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:33:26,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284590006] [2021-12-06 22:33:26,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:33:26,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:33:27,069 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-06 22:33:27,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [547644351] [2021-12-06 22:33:27,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:33:27,070 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-06 22:33:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:33:27,070 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-06 22:33:27,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2f697888-b697-4a6a-853c-f3c093128533/bin/uautomizer-DrprNOufMa/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-06 22:33:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 22:33:28,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 12836 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-06 22:33:28,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 22:33:29,152 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-12-06 22:33:29,153 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 22:33:29,153 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 22:33:29,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284590006] [2021-12-06 22:33:29,153 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-06 22:33:29,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547644351] [2021-12-06 22:33:29,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547644351] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 22:33:29,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 22:33:29,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 22:33:29,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890198254] [2021-12-06 22:33:29,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 22:33:29,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-06 22:33:29,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 22:33:29,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-06 22:33:29,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-06 22:33:29,154 INFO L87 Difference]: Start difference. First operand 344522 states and 536284 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9)