./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G --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 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:49:21,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:49:21,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:49:21,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:49:21,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:49:21,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:49:21,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:49:21,354 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:49:21,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:49:21,359 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:49:21,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:49:21,363 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:49:21,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:49:21,365 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:49:21,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:49:21,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:49:21,372 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:49:21,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:49:21,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:49:21,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:49:21,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:49:21,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:49:21,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:49:21,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:49:21,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:49:21,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:49:21,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:49:21,397 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:49:21,398 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:49:21,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:49:21,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:49:21,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:49:21,403 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:49:21,404 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:49:21,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:49:21,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:49:21,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:49:21,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:49:21,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:49:21,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:49:21,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:49:21,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-23 13:49:21,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:49:21,477 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:49:21,478 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:49:21,478 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:49:21,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:49:21,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:49:21,481 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:49:21,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:49:21,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:49:21,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:49:21,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:49:21,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:49:21,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:49:21,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:49:21,483 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:49:21,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:49:21,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:49:21,484 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:49:21,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:49:21,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:49:21,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:49:21,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:49:21,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:49:21,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:49:21,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:49:21,487 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:49:21,487 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:49:21,487 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:49:21,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:49:21,488 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_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 [2021-11-23 13:49:21,801 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:49:21,840 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:49:21,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:49:21,847 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:49:21,850 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:49:21,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2021-11-23 13:49:21,978 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/data/f6e0c43f8/851a71b813e548f0bbcd38fa46076be5/FLAGbedc2db39 [2021-11-23 13:49:23,043 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:49:23,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2021-11-23 13:49:23,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/data/f6e0c43f8/851a71b813e548f0bbcd38fa46076be5/FLAGbedc2db39 [2021-11-23 13:49:23,372 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/data/f6e0c43f8/851a71b813e548f0bbcd38fa46076be5 [2021-11-23 13:49:23,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:49:23,379 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:49:23,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:49:23,383 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:49:23,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:49:23,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:23" (1/1) ... [2021-11-23 13:49:23,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2366dd77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:23, skipping insertion in model container [2021-11-23 13:49:23,394 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:49:23" (1/1) ... [2021-11-23 13:49:23,403 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:49:23,548 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:49:24,213 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2021-11-23 13:49:24,213 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2021-11-23 13:49:24,597 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_760c7ae0-287e-46dd-90a3-695297b2557d/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i[105797,105810] [2021-11-23 13:49:25,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:49:25,834 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:49:25,954 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2021-11-23 13:49:25,955 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2021-11-23 13:49:25,981 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_760c7ae0-287e-46dd-90a3-695297b2557d/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i[105797,105810] [2021-11-23 13:49:26,333 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:49:26,444 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:49:26,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26 WrapperNode [2021-11-23 13:49:26,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:49:26,448 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:49:26,448 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:49:26,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:49:26,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:26,591 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:27,959 INFO L137 Inliner]: procedures = 189, calls = 1686, calls flagged for inlining = 360, calls inlined = 2816, statements flattened = 39113 [2021-11-23 13:49:27,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:49:27,962 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:49:27,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:49:27,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:49:27,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:27,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:28,430 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:28,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:29,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:29,752 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:29,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:30,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:49:30,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:49:30,007 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:49:30,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:49:30,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (1/1) ... [2021-11-23 13:49:30,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:49:30,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:49:30,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:49:30,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:49:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:49:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:49:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:49:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:49:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 13:49:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:49:30,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 13:49:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:49:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 13:49:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:49:30,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:49:30,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:49:30,944 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:49:30,947 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:49:59,487 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:49:59,558 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:49:59,558 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 13:49:59,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:59 BoogieIcfgContainer [2021-11-23 13:49:59,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:49:59,572 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:49:59,572 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:49:59,577 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:49:59,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:49:23" (1/3) ... [2021-11-23 13:49:59,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a8d6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:59, skipping insertion in model container [2021-11-23 13:49:59,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:49:26" (2/3) ... [2021-11-23 13:49:59,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a8d6dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:49:59, skipping insertion in model container [2021-11-23 13:49:59,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:49:59" (3/3) ... [2021-11-23 13:49:59,580 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2021-11-23 13:49:59,587 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:49:59,587 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 182 error locations. [2021-11-23 13:49:59,702 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:49:59,709 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 [2021-11-23 13:49:59,709 INFO L340 AbstractCegarLoop]: Starting to check reachability of 182 error locations. [2021-11-23 13:49:59,874 INFO L276 IsEmpty]: Start isEmpty. Operand has 7593 states, 7410 states have (on average 1.4286099865047233) internal successors, (10586), 7592 states have internal predecessors, (10586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:49:59,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 13:49:59,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:49:59,884 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:49:59,885 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:49:59,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:49:59,892 INFO L85 PathProgramCache]: Analyzing trace with hash -946031339, now seen corresponding path program 1 times [2021-11-23 13:49:59,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:49:59,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18218819] [2021-11-23 13:49:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:49:59,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:00,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:50:00,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:00,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18218819] [2021-11-23 13:50:00,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18218819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:00,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:00,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:00,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897218751] [2021-11-23 13:50:00,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:00,561 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:00,561 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:00,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:00,652 INFO L87 Difference]: Start difference. First operand has 7593 states, 7410 states have (on average 1.4286099865047233) internal successors, (10586), 7592 states have internal predecessors, (10586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:01,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:01,260 INFO L93 Difference]: Finished difference Result 15025 states and 21020 transitions. [2021-11-23 13:50:01,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:01,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-23 13:50:01,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:01,361 INFO L225 Difference]: With dead ends: 15025 [2021-11-23 13:50:01,362 INFO L226 Difference]: Without dead ends: 7322 [2021-11-23 13:50:01,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:01,396 INFO L933 BasicCegarLoop]: 10088 mSDtfsCounter, 50 mSDsluCounter, 10041 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 20129 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:01,397 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 20129 Invalid, 31 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:50:01,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7322 states. [2021-11-23 13:50:01,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7322 to 7317. [2021-11-23 13:50:01,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7317 states, 7135 states have (on average 1.387666433076384) internal successors, (9901), 7316 states have internal predecessors, (9901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:01,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7317 states to 7317 states and 9901 transitions. [2021-11-23 13:50:01,988 INFO L78 Accepts]: Start accepts. Automaton has 7317 states and 9901 transitions. Word has length 19 [2021-11-23 13:50:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:01,989 INFO L470 AbstractCegarLoop]: Abstraction has 7317 states and 9901 transitions. [2021-11-23 13:50:01,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 7317 states and 9901 transitions. [2021-11-23 13:50:01,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 13:50:01,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:01,993 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-23 13:50:01,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:50:01,994 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:01,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:01,996 INFO L85 PathProgramCache]: Analyzing trace with hash 971618648, now seen corresponding path program 1 times [2021-11-23 13:50:01,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:01,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664677460] [2021-11-23 13:50:01,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:01,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:02,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:02,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:50:02,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:02,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664677460] [2021-11-23 13:50:02,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664677460] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:02,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:02,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:50:02,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420149968] [2021-11-23 13:50:02,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:02,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:02,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:02,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:02,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:02,200 INFO L87 Difference]: Start difference. First operand 7317 states and 9901 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:03,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:03,266 INFO L93 Difference]: Finished difference Result 7317 states and 9901 transitions. [2021-11-23 13:50:03,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:03,267 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2021-11-23 13:50:03,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:03,323 INFO L225 Difference]: With dead ends: 7317 [2021-11-23 13:50:03,324 INFO L226 Difference]: Without dead ends: 6973 [2021-11-23 13:50:03,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:03,329 INFO L933 BasicCegarLoop]: 9366 mSDtfsCounter, 9245 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9245 SdHoareTripleChecker+Valid, 9578 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:03,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9245 Valid, 9578 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 13:50:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6973 states. [2021-11-23 13:50:03,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6973 to 6973. [2021-11-23 13:50:03,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6973 states, 6963 states have (on average 1.3725405715927044) internal successors, (9557), 6972 states have internal predecessors, (9557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:03,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6973 states to 6973 states and 9557 transitions. [2021-11-23 13:50:03,612 INFO L78 Accepts]: Start accepts. Automaton has 6973 states and 9557 transitions. Word has length 36 [2021-11-23 13:50:03,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:03,613 INFO L470 AbstractCegarLoop]: Abstraction has 6973 states and 9557 transitions. [2021-11-23 13:50:03,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 6973 states and 9557 transitions. [2021-11-23 13:50:03,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-23 13:50:03,631 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:03,632 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:03,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:50:03,632 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:03,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:03,633 INFO L85 PathProgramCache]: Analyzing trace with hash -902930237, now seen corresponding path program 1 times [2021-11-23 13:50:03,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:03,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990970615] [2021-11-23 13:50:03,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:03,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:03,723 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:50:03,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [850383980] [2021-11-23 13:50:03,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:03,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:03,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:50:03,727 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:50:03,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:50:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:04,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 2141 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:50:04,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:50:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:50:05,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:50:05,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:05,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990970615] [2021-11-23 13:50:05,066 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:50:05,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850383980] [2021-11-23 13:50:05,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850383980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:05,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:05,067 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:05,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103551981] [2021-11-23 13:50:05,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:05,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:05,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:05,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:05,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:05,071 INFO L87 Difference]: Start difference. First operand 6973 states and 9557 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:05,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:05,587 INFO L93 Difference]: Finished difference Result 13965 states and 19153 transitions. [2021-11-23 13:50:05,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:05,588 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2021-11-23 13:50:05,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:05,644 INFO L225 Difference]: With dead ends: 13965 [2021-11-23 13:50:05,645 INFO L226 Difference]: Without dead ends: 7007 [2021-11-23 13:50:05,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:05,669 INFO L933 BasicCegarLoop]: 9527 mSDtfsCounter, 211 mSDsluCounter, 9332 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 211 SdHoareTripleChecker+Valid, 18859 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:05,671 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [211 Valid, 18859 Invalid, 45 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:50:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7007 states. [2021-11-23 13:50:05,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7007 to 7002. [2021-11-23 13:50:06,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7002 states, 6992 states have (on average 1.3729977116704806) internal successors, (9600), 7001 states have internal predecessors, (9600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:06,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7002 states to 7002 states and 9600 transitions. [2021-11-23 13:50:06,050 INFO L78 Accepts]: Start accepts. Automaton has 7002 states and 9600 transitions. Word has length 83 [2021-11-23 13:50:06,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:06,051 INFO L470 AbstractCegarLoop]: Abstraction has 7002 states and 9600 transitions. [2021-11-23 13:50:06,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:06,053 INFO L276 IsEmpty]: Start isEmpty. Operand 7002 states and 9600 transitions. [2021-11-23 13:50:06,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-11-23 13:50:06,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:06,064 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:06,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:50:06,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-23 13:50:06,291 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:06,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:06,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1600887397, now seen corresponding path program 1 times [2021-11-23 13:50:06,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:06,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555330918] [2021-11-23 13:50:06,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:06,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:06,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:50:06,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:06,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555330918] [2021-11-23 13:50:06,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555330918] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:06,550 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:06,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:50:06,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220500221] [2021-11-23 13:50:06,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:06,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:50:06,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:06,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:50:06,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:50:06,553 INFO L87 Difference]: Start difference. First operand 7002 states and 9600 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:07,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:07,055 INFO L93 Difference]: Finished difference Result 14153 states and 19415 transitions. [2021-11-23 13:50:07,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:50:07,056 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-11-23 13:50:07,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:07,127 INFO L225 Difference]: With dead ends: 14153 [2021-11-23 13:50:07,127 INFO L226 Difference]: Without dead ends: 7166 [2021-11-23 13:50:07,140 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:50:07,143 INFO L933 BasicCegarLoop]: 9745 mSDtfsCounter, 273 mSDsluCounter, 19205 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 28950 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:07,145 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 28950 Invalid, 21 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:50:07,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7166 states. [2021-11-23 13:50:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7166 to 7004. [2021-11-23 13:50:07,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7004 states, 6994 states have (on average 1.3728910494709752) internal successors, (9602), 7003 states have internal predecessors, (9602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:07,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 9602 transitions. [2021-11-23 13:50:07,413 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 9602 transitions. Word has length 94 [2021-11-23 13:50:07,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:07,414 INFO L470 AbstractCegarLoop]: Abstraction has 7004 states and 9602 transitions. [2021-11-23 13:50:07,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:07,415 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 9602 transitions. [2021-11-23 13:50:07,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-11-23 13:50:07,426 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:07,427 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:07,427 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 13:50:07,427 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:07,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:07,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2081439927, now seen corresponding path program 1 times [2021-11-23 13:50:07,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:07,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088477555] [2021-11-23 13:50:07,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:07,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:07,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:50:07,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:07,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088477555] [2021-11-23 13:50:07,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088477555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:07,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:07,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 13:50:07,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957568976] [2021-11-23 13:50:07,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:07,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:50:07,734 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:07,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:50:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:50:07,739 INFO L87 Difference]: Start difference. First operand 7004 states and 9602 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:08,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:08,178 INFO L93 Difference]: Finished difference Result 14158 states and 19420 transitions. [2021-11-23 13:50:08,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 13:50:08,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-11-23 13:50:08,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:08,205 INFO L225 Difference]: With dead ends: 14158 [2021-11-23 13:50:08,206 INFO L226 Difference]: Without dead ends: 7169 [2021-11-23 13:50:08,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:50:08,233 INFO L933 BasicCegarLoop]: 9745 mSDtfsCounter, 273 mSDsluCounter, 19205 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 273 SdHoareTripleChecker+Valid, 28950 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:08,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [273 Valid, 28950 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:50:08,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7169 states. [2021-11-23 13:50:08,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7169 to 7004. [2021-11-23 13:50:08,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7004 states, 6994 states have (on average 1.3728910494709752) internal successors, (9602), 7003 states have internal predecessors, (9602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:08,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7004 states to 7004 states and 9602 transitions. [2021-11-23 13:50:08,503 INFO L78 Accepts]: Start accepts. Automaton has 7004 states and 9602 transitions. Word has length 97 [2021-11-23 13:50:08,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:08,505 INFO L470 AbstractCegarLoop]: Abstraction has 7004 states and 9602 transitions. [2021-11-23 13:50:08,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:08,505 INFO L276 IsEmpty]: Start isEmpty. Operand 7004 states and 9602 transitions. [2021-11-23 13:50:08,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 13:50:08,529 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:08,529 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:08,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 13:50:08,530 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:08,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1374111291, now seen corresponding path program 1 times [2021-11-23 13:50:08,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:08,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139135477] [2021-11-23 13:50:08,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:08,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:50:08,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:08,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139135477] [2021-11-23 13:50:08,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139135477] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:08,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:08,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:08,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275499408] [2021-11-23 13:50:08,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:08,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:08,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:08,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:08,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:08,810 INFO L87 Difference]: Start difference. First operand 7004 states and 9602 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:09,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:09,072 INFO L93 Difference]: Finished difference Result 13994 states and 19188 transitions. [2021-11-23 13:50:09,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:09,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-23 13:50:09,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:09,097 INFO L225 Difference]: With dead ends: 13994 [2021-11-23 13:50:09,097 INFO L226 Difference]: Without dead ends: 7005 [2021-11-23 13:50:09,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:09,113 INFO L933 BasicCegarLoop]: 9537 mSDtfsCounter, 0 mSDsluCounter, 9532 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19069 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:09,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19069 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:50:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7005 states. [2021-11-23 13:50:09,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7005 to 7005. [2021-11-23 13:50:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 6995 states have (on average 1.3728377412437456) internal successors, (9603), 7004 states have internal predecessors, (9603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 9603 transitions. [2021-11-23 13:50:09,357 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 9603 transitions. Word has length 116 [2021-11-23 13:50:09,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:09,358 INFO L470 AbstractCegarLoop]: Abstraction has 7005 states and 9603 transitions. [2021-11-23 13:50:09,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:09,358 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 9603 transitions. [2021-11-23 13:50:09,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 13:50:09,370 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:09,370 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:09,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 13:50:09,371 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:09,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash 881485117, now seen corresponding path program 1 times [2021-11-23 13:50:09,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:09,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525913862] [2021-11-23 13:50:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:09,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:09,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:09,618 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:50:09,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:09,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525913862] [2021-11-23 13:50:09,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525913862] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:09,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:09,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:09,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142898073] [2021-11-23 13:50:09,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:09,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 13:50:09,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:09,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 13:50:09,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 13:50:09,622 INFO L87 Difference]: Start difference. First operand 7005 states and 9603 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:10,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:10,048 INFO L93 Difference]: Finished difference Result 13995 states and 19188 transitions. [2021-11-23 13:50:10,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:50:10,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-23 13:50:10,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:10,073 INFO L225 Difference]: With dead ends: 13995 [2021-11-23 13:50:10,073 INFO L226 Difference]: Without dead ends: 7005 [2021-11-23 13:50:10,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 13:50:10,088 INFO L933 BasicCegarLoop]: 9533 mSDtfsCounter, 9489 mSDsluCounter, 9530 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9489 SdHoareTripleChecker+Valid, 19063 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:10,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9489 Valid, 19063 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:50:10,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7005 states. [2021-11-23 13:50:10,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7005 to 7005. [2021-11-23 13:50:10,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7005 states, 6995 states have (on average 1.3726947819871336) internal successors, (9602), 7004 states have internal predecessors, (9602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7005 states to 7005 states and 9602 transitions. [2021-11-23 13:50:10,377 INFO L78 Accepts]: Start accepts. Automaton has 7005 states and 9602 transitions. Word has length 116 [2021-11-23 13:50:10,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:10,378 INFO L470 AbstractCegarLoop]: Abstraction has 7005 states and 9602 transitions. [2021-11-23 13:50:10,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:10,378 INFO L276 IsEmpty]: Start isEmpty. Operand 7005 states and 9602 transitions. [2021-11-23 13:50:10,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-23 13:50:10,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:10,390 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:10,390 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 13:50:10,390 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:10,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:10,391 INFO L85 PathProgramCache]: Analyzing trace with hash -334668609, now seen corresponding path program 1 times [2021-11-23 13:50:10,391 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:10,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278331361] [2021-11-23 13:50:10,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:10,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:10,490 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:50:10,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726144319] [2021-11-23 13:50:10,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:10,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:10,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:50:10,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:50:10,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 13:50:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:11,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 2422 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:50:11,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:50:11,989 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:50:11,990 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:50:11,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:11,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278331361] [2021-11-23 13:50:11,990 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:50:11,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726144319] [2021-11-23 13:50:11,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726144319] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:11,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:11,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:11,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291677719] [2021-11-23 13:50:11,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:11,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:11,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:11,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:11,993 INFO L87 Difference]: Start difference. First operand 7005 states and 9602 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:12,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:12,434 INFO L93 Difference]: Finished difference Result 14029 states and 19243 transitions. [2021-11-23 13:50:12,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:12,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2021-11-23 13:50:12,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:12,457 INFO L225 Difference]: With dead ends: 14029 [2021-11-23 13:50:12,458 INFO L226 Difference]: Without dead ends: 7039 [2021-11-23 13:50:12,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:12,471 INFO L933 BasicCegarLoop]: 9523 mSDtfsCounter, 4866 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4866 SdHoareTripleChecker+Valid, 14209 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:12,472 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4866 Valid, 14209 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:50:12,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7039 states. [2021-11-23 13:50:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7039 to 7034. [2021-11-23 13:50:12,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7034 states, 7024 states have (on average 1.3735763097949887) internal successors, (9648), 7033 states have internal predecessors, (9648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7034 states to 7034 states and 9648 transitions. [2021-11-23 13:50:12,757 INFO L78 Accepts]: Start accepts. Automaton has 7034 states and 9648 transitions. Word has length 116 [2021-11-23 13:50:12,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:12,758 INFO L470 AbstractCegarLoop]: Abstraction has 7034 states and 9648 transitions. [2021-11-23 13:50:12,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:12,758 INFO L276 IsEmpty]: Start isEmpty. Operand 7034 states and 9648 transitions. [2021-11-23 13:50:12,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-23 13:50:12,767 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:12,768 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:12,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:50:12,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:12,984 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr117ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:12,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:12,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1148068379, now seen corresponding path program 1 times [2021-11-23 13:50:12,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:12,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710087852] [2021-11-23 13:50:12,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:12,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:13,096 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:50:13,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1300183736] [2021-11-23 13:50:13,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:13,097 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:13,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:50:13,098 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:50:13,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 13:50:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:14,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 2418 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 13:50:14,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:50:14,344 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 13:50:14,344 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:50:14,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:14,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710087852] [2021-11-23 13:50:14,345 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:50:14,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300183736] [2021-11-23 13:50:14,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300183736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:14,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:14,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 13:50:14,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434712755] [2021-11-23 13:50:14,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:14,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 13:50:14,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:14,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 13:50:14,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:14,349 INFO L87 Difference]: Start difference. First operand 7034 states and 9648 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:14,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:14,807 INFO L93 Difference]: Finished difference Result 14055 states and 19282 transitions. [2021-11-23 13:50:14,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 13:50:14,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-23 13:50:14,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:14,832 INFO L225 Difference]: With dead ends: 14055 [2021-11-23 13:50:14,832 INFO L226 Difference]: Without dead ends: 7036 [2021-11-23 13:50:14,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 13:50:14,847 INFO L933 BasicCegarLoop]: 9536 mSDtfsCounter, 0 mSDsluCounter, 9525 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19061 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:14,847 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19061 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:50:14,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7036 states. [2021-11-23 13:50:15,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7036 to 7036. [2021-11-23 13:50:15,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7036 states, 7026 states have (on average 1.3734699686877312) internal successors, (9650), 7035 states have internal predecessors, (9650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:15,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7036 states to 7036 states and 9650 transitions. [2021-11-23 13:50:15,199 INFO L78 Accepts]: Start accepts. Automaton has 7036 states and 9650 transitions. Word has length 117 [2021-11-23 13:50:15,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:15,200 INFO L470 AbstractCegarLoop]: Abstraction has 7036 states and 9650 transitions. [2021-11-23 13:50:15,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 7036 states and 9650 transitions. [2021-11-23 13:50:15,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-23 13:50:15,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:15,212 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:15,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 13:50:15,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:15,427 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr117ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:15,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:15,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1282081885, now seen corresponding path program 1 times [2021-11-23 13:50:15,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:15,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475945020] [2021-11-23 13:50:15,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:15,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:15,589 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:50:15,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716013494] [2021-11-23 13:50:15,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:15,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:15,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:50:15,604 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:50:15,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 13:50:16,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:16,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 2423 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 13:50:16,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:50:16,880 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:50:16,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:50:16,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:16,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475945020] [2021-11-23 13:50:16,881 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:50:16,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716013494] [2021-11-23 13:50:16,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716013494] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:16,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:16,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 13:50:16,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531617969] [2021-11-23 13:50:16,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:16,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:50:16,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:16,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:50:16,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:50:16,884 INFO L87 Difference]: Start difference. First operand 7036 states and 9650 transitions. Second operand has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:17,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:50:17,956 INFO L93 Difference]: Finished difference Result 21227 states and 29119 transitions. [2021-11-23 13:50:17,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:50:17,957 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2021-11-23 13:50:17,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:50:18,013 INFO L225 Difference]: With dead ends: 21227 [2021-11-23 13:50:18,014 INFO L226 Difference]: Without dead ends: 14206 [2021-11-23 13:50:18,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-23 13:50:18,032 INFO L933 BasicCegarLoop]: 19049 mSDtfsCounter, 9965 mSDsluCounter, 66684 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9965 SdHoareTripleChecker+Valid, 85733 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:50:18,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9965 Valid, 85733 Invalid, 58 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:50:18,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14206 states. [2021-11-23 13:50:18,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14206 to 7040. [2021-11-23 13:50:18,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7040 states, 7030 states have (on average 1.3732574679943101) internal successors, (9654), 7039 states have internal predecessors, (9654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:18,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7040 states to 7040 states and 9654 transitions. [2021-11-23 13:50:18,491 INFO L78 Accepts]: Start accepts. Automaton has 7040 states and 9654 transitions. Word has length 117 [2021-11-23 13:50:18,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:50:18,492 INFO L470 AbstractCegarLoop]: Abstraction has 7040 states and 9654 transitions. [2021-11-23 13:50:18,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.333333333333332) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 7040 states and 9654 transitions. [2021-11-23 13:50:18,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-23 13:50:18,503 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:50:18,504 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:50:18,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:50:18,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:18,719 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr117ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:50:18,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:50:18,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1707239685, now seen corresponding path program 1 times [2021-11-23 13:50:18,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:50:18,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672751153] [2021-11-23 13:50:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:18,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:50:18,839 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:50:18,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1261765240] [2021-11-23 13:50:18,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:50:18,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:50:18,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:50:18,842 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:50:18,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 13:50:19,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:50:19,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 2447 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-23 13:50:19,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:50:20,434 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 13:50:20,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 19 [2021-11-23 13:50:20,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-11-23 13:50:20,660 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 13:50:20,660 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 13:50:20,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:50:20,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672751153] [2021-11-23 13:50:20,661 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:50:20,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261765240] [2021-11-23 13:50:20,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261765240] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:50:20,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:50:20,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-11-23 13:50:20,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818818106] [2021-11-23 13:50:20,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:50:20,663 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:50:20,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:50:20,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:50:20,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:50:20,665 INFO L87 Difference]: Start difference. First operand 7040 states and 9654 transitions. Second operand has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:50:33,040 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:35,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:39,055 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:42,431 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:44,621 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:47,381 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:51,269 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:53,454 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:55,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:50:59,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:02,822 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:05,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:08,436 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:11,527 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:14,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:16,694 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:23,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:26,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:51:29,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:51:29,374 INFO L93 Difference]: Finished difference Result 36271 states and 49765 transitions. [2021-11-23 13:51:29,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-11-23 13:51:29,375 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2021-11-23 13:51:29,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:51:29,489 INFO L225 Difference]: With dead ends: 36271 [2021-11-23 13:51:29,490 INFO L226 Difference]: Without dead ends: 29246 [2021-11-23 13:51:29,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=299, Invalid=757, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 13:51:29,511 INFO L933 BasicCegarLoop]: 9580 mSDtfsCounter, 80602 mSDsluCounter, 73307 mSDsCounter, 0 mSdLazyCounter, 5520 mSolverCounterSat, 313 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80602 SdHoareTripleChecker+Valid, 82887 SdHoareTripleChecker+Invalid, 5848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 313 IncrementalHoareTripleChecker+Valid, 5520 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 65.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:51:29,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [80602 Valid, 82887 Invalid, 5848 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [313 Valid, 5520 Invalid, 15 Unknown, 0 Unchecked, 65.5s Time] [2021-11-23 13:51:29,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29246 states. [2021-11-23 13:51:30,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29246 to 14065. [2021-11-23 13:51:30,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14065 states, 14055 states have (on average 1.3733902525791533) internal successors, (19303), 14064 states have internal predecessors, (19303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:51:30,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14065 states to 14065 states and 19303 transitions. [2021-11-23 13:51:30,755 INFO L78 Accepts]: Start accepts. Automaton has 14065 states and 19303 transitions. Word has length 122 [2021-11-23 13:51:30,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:51:30,756 INFO L470 AbstractCegarLoop]: Abstraction has 14065 states and 19303 transitions. [2021-11-23 13:51:30,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.833333333333334) internal successors, (118), 12 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:51:30,756 INFO L276 IsEmpty]: Start isEmpty. Operand 14065 states and 19303 transitions. [2021-11-23 13:51:30,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-23 13:51:30,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:51:30,774 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:51:30,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:51:30,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:51:30,998 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr117ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:51:30,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:51:30,999 INFO L85 PathProgramCache]: Analyzing trace with hash 735633654, now seen corresponding path program 1 times [2021-11-23 13:51:30,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:51:30,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555949492] [2021-11-23 13:51:31,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:51:31,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:51:31,103 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:51:31,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [227305090] [2021-11-23 13:51:31,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:51:31,104 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:51:31,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:51:31,105 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:51:31,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 13:51:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:51:32,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 53 conjunts are in the unsatisfiable core [2021-11-23 13:51:32,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:51:32,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-23 13:51:32,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2021-11-23 13:51:32,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2021-11-23 13:51:32,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2021-11-23 13:51:32,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 6 [2021-11-23 13:51:33,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2021-11-23 13:51:33,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2021-11-23 13:51:33,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2021-11-23 13:51:33,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2021-11-23 13:51:33,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-23 13:51:33,723 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:51:33,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:51:43,305 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_7| Int) (v_DerPreprocessor_2 Int) (v_DerPreprocessor_1 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_usbtest_probe_~dev~1#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_usbtest_probe_~dev~1#1.base|) (+ |c_ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_2)))) (store .cse0 |c_ULTIMATE.start_usbtest_probe_~intf#1.base| (store (select .cse0 |c_ULTIMATE.start_usbtest_probe_~intf#1.base|) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_7|) v_DerPreprocessor_1))) |c_ULTIMATE.start_main_~ldvarg0~0#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10))) is different from false [2021-11-23 13:53:25,475 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:53:25,475 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:53:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555949492] [2021-11-23 13:53:25,476 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:53:25,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227305090] [2021-11-23 13:53:25,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227305090] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:53:25,476 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:53:25,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19] total 31 [2021-11-23 13:53:25,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582146437] [2021-11-23 13:53:25,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:53:25,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-23 13:53:25,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:53:25,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-23 13:53:25,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=734, Unknown=44, NotChecked=56, Total=930 [2021-11-23 13:53:25,481 INFO L87 Difference]: Start difference. First operand 14065 states and 19303 transitions. Second operand has 31 states, 31 states have (on average 7.032258064516129) internal successors, (218), 31 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:53:43,730 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:53:52,158 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:53:54,372 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:00,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:04,106 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:06,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:09,268 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:11,483 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:22,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:26,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:29,993 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:32,207 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:34,919 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:38,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:40,531 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:42,808 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:45,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:48,137 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:51,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:54,366 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:56,583 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:54:59,368 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:01,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:04,226 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:07,344 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:09,556 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:13,151 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:15,365 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:18,526 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:22,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:24,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:27,043 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:31,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:33,386 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:35,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:38,792 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:55:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:55:39,253 INFO L93 Difference]: Finished difference Result 23912 states and 32902 transitions. [2021-11-23 13:55:39,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-11-23 13:55:39,255 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 7.032258064516129) internal successors, (218), 31 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-11-23 13:55:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:55:39,294 INFO L225 Difference]: With dead ends: 23912 [2021-11-23 13:55:39,294 INFO L226 Difference]: Without dead ends: 16887 [2021-11-23 13:55:39,307 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 223 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 112.8s TimeCoverageRelationStatistics Valid=535, Invalid=2505, Unknown=44, NotChecked=108, Total=3192 [2021-11-23 13:55:39,308 INFO L933 BasicCegarLoop]: 12330 mSDtfsCounter, 7055 mSDsluCounter, 200925 mSDsCounter, 0 mSdLazyCounter, 9874 mSolverCounterSat, 46 mSolverCounterUnsat, 34 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7055 SdHoareTripleChecker+Valid, 213255 SdHoareTripleChecker+Invalid, 39402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 9874 IncrementalHoareTripleChecker+Invalid, 34 IncrementalHoareTripleChecker+Unknown, 29448 IncrementalHoareTripleChecker+Unchecked, 129.9s IncrementalHoareTripleChecker+Time [2021-11-23 13:55:39,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7055 Valid, 213255 Invalid, 39402 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [46 Valid, 9874 Invalid, 34 Unknown, 29448 Unchecked, 129.9s Time] [2021-11-23 13:55:39,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16887 states. [2021-11-23 13:55:40,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16887 to 14612. [2021-11-23 13:55:40,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14612 states, 14602 states have (on average 1.3782358581016299) internal successors, (20125), 14611 states have internal predecessors, (20125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:40,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14612 states to 14612 states and 20125 transitions. [2021-11-23 13:55:40,182 INFO L78 Accepts]: Start accepts. Automaton has 14612 states and 20125 transitions. Word has length 125 [2021-11-23 13:55:40,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:55:40,183 INFO L470 AbstractCegarLoop]: Abstraction has 14612 states and 20125 transitions. [2021-11-23 13:55:40,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 7.032258064516129) internal successors, (218), 31 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:55:40,183 INFO L276 IsEmpty]: Start isEmpty. Operand 14612 states and 20125 transitions. [2021-11-23 13:55:40,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-23 13:55:40,206 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:55:40,207 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:55:40,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:55:40,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:40,424 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr117ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 13:55:40,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:55:40,424 INFO L85 PathProgramCache]: Analyzing trace with hash 610039482, now seen corresponding path program 1 times [2021-11-23 13:55:40,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:55:40,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10443477] [2021-11-23 13:55:40,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:55:40,425 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:55:40,540 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:55:40,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [932272447] [2021-11-23 13:55:40,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:55:40,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:55:40,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:55:40,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:55:40,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 13:55:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:55:41,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 2486 conjuncts, 57 conjunts are in the unsatisfiable core [2021-11-23 13:55:41,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:55:41,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-23 13:55:41,952 INFO L354 Elim1Store]: treesize reduction 28, result has 15.2 percent of original size [2021-11-23 13:55:41,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 25 [2021-11-23 13:55:41,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2021-11-23 13:55:42,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2021-11-23 13:55:42,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2021-11-23 13:55:42,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 22 [2021-11-23 13:55:42,591 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 6 [2021-11-23 13:55:42,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2021-11-23 13:55:42,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2021-11-23 13:55:42,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 26 [2021-11-23 13:55:42,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 6 [2021-11-23 13:55:43,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-23 13:55:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 13:55:43,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:55:57,304 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int)) (not (= 10 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_usbtest_probe_~dev~1#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_usbtest_probe_~dev~1#1.base|) (+ |c_ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6)))) (store .cse0 |c_ULTIMATE.start_usbtest_probe_~intf#1.base| (store (select .cse0 |c_ULTIMATE.start_usbtest_probe_~intf#1.base|) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_main_~ldvarg0~0#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|)))) is different from false [2021-11-23 13:56:13,661 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_usbtest_probe_~dev~1#1.base| (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_usbtest_probe_~dev~1#1.base|) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6)))) (store .cse0 |c_ULTIMATE.start_usbtest_probe_~intf#1.base| (store (select .cse0 |c_ULTIMATE.start_usbtest_probe_~intf#1.base|) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_main_~ldvarg0~0#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10))) is different from false [2021-11-23 13:57:27,912 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int)) (or (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (forall ((|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_main_~ldvarg0~0#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10))))) is different from false [2021-11-23 13:57:29,972 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int) (|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (or (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (not (= 10 (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_ldv_zalloc_#res#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|))))) is different from false [2021-11-23 13:57:32,018 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int) (|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_ldv_zalloc_~p~1#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10)) (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|))) is different from false [2021-11-23 13:57:34,125 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int) (|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_ldv_zalloc_#t~malloc45#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10)) (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|))) is different from false [2021-11-23 13:57:34,170 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-23 13:57:34,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1604 treesize of output 1568 [2021-11-23 13:57:34,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90788 treesize of output 90148 [2021-11-23 13:57:35,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 108140 treesize of output 108068 [2021-11-23 13:57:39,578 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:57:39,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:57:39,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10443477] [2021-11-23 13:57:39,579 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 13:57:39,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932272447] [2021-11-23 13:57:39,580 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932272447] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 13:57:39,580 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 13:57:39,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 37 [2021-11-23 13:57:39,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165291463] [2021-11-23 13:57:39,581 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 13:57:39,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-11-23 13:57:39,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:57:39,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-11-23 13:57:39,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=796, Unknown=46, NotChecked=378, Total=1332 [2021-11-23 13:57:39,584 INFO L87 Difference]: Start difference. First operand 14612 states and 20125 transitions. Second operand has 37 states, 37 states have (on average 6.027027027027027) internal successors, (223), 37 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:57:41,799 WARN L838 $PredicateComparison]: unable to prove that (and (not (= 0 |c_ULTIMATE.start_ldv_zalloc_#t~malloc45#1.base|)) (< (+ 1 |c_ULTIMATE.start_ldv_zalloc_#t~malloc45#1.base|) |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int) (|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_ldv_zalloc_#t~malloc45#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10)) (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|))) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_ULTIMATE.start_ldv_zalloc_#t~malloc45#1.base|)) (< |c_#StackHeapBarrier| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|)) is different from false [2021-11-23 13:57:43,813 WARN L838 $PredicateComparison]: unable to prove that (and (< (+ |c_ULTIMATE.start_ldv_zalloc_~p~1#1.base| 1) |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (not (= |c_ULTIMATE.start_ldv_zalloc_~p~1#1.base| 0)) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_ULTIMATE.start_ldv_zalloc_~p~1#1.base|)) (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int) (|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (or (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_ldv_zalloc_~p~1#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10)) (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|)))) is different from false [2021-11-23 13:57:45,957 WARN L838 $PredicateComparison]: unable to prove that (and (not (= |c_ULTIMATE.start_ldv_zalloc_#res#1.base| 0)) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_ULTIMATE.start_ldv_zalloc_#res#1.base|)) (< (+ |c_ULTIMATE.start_ldv_zalloc_#res#1.base| 1) |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int) (|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (or (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (not (= 10 (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_ldv_zalloc_#res#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|)))))) is different from false [2021-11-23 13:57:47,967 WARN L838 $PredicateComparison]: unable to prove that (and (< (+ |c_ULTIMATE.start_main_~ldvarg0~0#1.base| 1) |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (= ((as const (Array Int Int)) 0) (select |c_#memory_int| |c_ULTIMATE.start_main_~ldvarg0~0#1.base|)) (not (= |c_ULTIMATE.start_main_~ldvarg0~0#1.base| 0)) (forall ((|v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| Int)) (or (< |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| |c_ULTIMATE.start_main_~#ldvarg2~0#1.base|) (forall ((|v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8| Int) (|ULTIMATE.start_usbtest_ioctl_~param~0#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#value#1| Int) (|ULTIMATE.start_usbtest_probe_~dev~1#1.offset| Int) (v_DerPreprocessor_8 Int) (v_DerPreprocessor_7 Int) (v_DerPreprocessor_6 Int) (v_DerPreprocessor_5 Int) (|ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| Int) (|ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1| Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419| (store (select |c_#memory_int| |v_ULTIMATE.start_#Ultimate.C_memset_#ptr#1.base_419|) (+ |ULTIMATE.start_#Ultimate.C_memset_#ptr#1.offset| |ULTIMATE.start_#Ultimate.C_memset_#t~loopctr1144#1|) |ULTIMATE.start_#Ultimate.C_memset_#value#1|)))) (store .cse0 0 (store (store (store (store (select .cse0 0) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 8) v_DerPreprocessor_8) |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| v_DerPreprocessor_7) (+ |ULTIMATE.start_usbtest_probe_~dev~1#1.offset| 204) v_DerPreprocessor_6) (+ 489 |v_ULTIMATE.start_dev_set_drvdata_~dev#1.offset_8|) v_DerPreprocessor_5))) |c_ULTIMATE.start_main_~ldvarg0~0#1.base|) |ULTIMATE.start_usbtest_ioctl_~param~0#1.offset|) 10)))))) is different from false [2021-11-23 13:58:13,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:15,708 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:17,897 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:21,594 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:23,795 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:27,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:37,827 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:40,292 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:43,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:51,405 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:53,602 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:58:57,920 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:00,118 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:02,322 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:13,082 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:18,570 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:20,775 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:22,988 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:25,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:27,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:33,318 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:35,529 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:38,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:41,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:44,192 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:46,407 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:49,009 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:51,388 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:53,597 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:56,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 13:59:58,947 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:02,309 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:04,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:06,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:08,954 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:11,246 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:13,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:16,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:18,265 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:20,467 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:22,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:25,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:28,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:30,613 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:32,811 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:38,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:41,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:43,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:45,903 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:48,147 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:50,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:52,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:55,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:00:57,894 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:00,100 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:03,680 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:05,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:08,338 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:10,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:14,673 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:16,882 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:19,080 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:21,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:24,434 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:27,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:29,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:32,955 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:35,122 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:37,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:39,534 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:41,742 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:43,949 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:46,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:48,856 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:51,209 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:53,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:55,815 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:01:58,335 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:00,691 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:02,902 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:07,332 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:09,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:11,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:14,022 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:16,824 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:19,059 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:21,463 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:23,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 14:02:24,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 14:02:24,952 INFO L93 Difference]: Finished difference Result 29536 states and 40969 transitions. [2021-11-23 14:02:24,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-11-23 14:02:24,953 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 6.027027027027027) internal successors, (223), 37 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-23 14:02:24,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 14:02:24,994 INFO L225 Difference]: With dead ends: 29536 [2021-11-23 14:02:24,994 INFO L226 Difference]: Without dead ends: 22511 [2021-11-23 14:02:25,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 245 SyntacticMatches, 20 SemanticMatches, 101 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 2676 ImplicationChecksByTransitivity, 123.0s TimeCoverageRelationStatistics Valid=1509, Invalid=7037, Unknown=50, NotChecked=1910, Total=10506 [2021-11-23 14:02:25,012 INFO L933 BasicCegarLoop]: 12406 mSDtfsCounter, 45304 mSDsluCounter, 222398 mSDsCounter, 0 mSdLazyCounter, 15890 mSolverCounterSat, 200 mSolverCounterUnsat, 85 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 241.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45304 SdHoareTripleChecker+Valid, 234804 SdHoareTripleChecker+Invalid, 165253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.6s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 15890 IncrementalHoareTripleChecker+Invalid, 85 IncrementalHoareTripleChecker+Unknown, 149078 IncrementalHoareTripleChecker+Unchecked, 269.0s IncrementalHoareTripleChecker+Time [2021-11-23 14:02:25,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45304 Valid, 234804 Invalid, 165253 Unknown, 0 Unchecked, 0.6s Time], IncrementalHoareTripleChecker [200 Valid, 15890 Invalid, 85 Unknown, 149078 Unchecked, 269.0s Time] [2021-11-23 14:02:25,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22511 states. [2021-11-23 14:02:26,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22511 to 15435. [2021-11-23 14:02:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15435 states, 15425 states have (on average 1.3841166936790923) internal successors, (21350), 15434 states have internal predecessors, (21350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:02:26,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15435 states to 15435 states and 21350 transitions. [2021-11-23 14:02:26,394 INFO L78 Accepts]: Start accepts. Automaton has 15435 states and 21350 transitions. Word has length 126 [2021-11-23 14:02:26,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 14:02:26,395 INFO L470 AbstractCegarLoop]: Abstraction has 15435 states and 21350 transitions. [2021-11-23 14:02:26,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 6.027027027027027) internal successors, (223), 37 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 14:02:26,396 INFO L276 IsEmpty]: Start isEmpty. Operand 15435 states and 21350 transitions. [2021-11-23 14:02:26,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-11-23 14:02:26,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 14:02:26,419 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 14:02:26,475 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 14:02:26,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 14:02:26,647 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr117ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 179 more)] === [2021-11-23 14:02:26,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 14:02:26,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1011587446, now seen corresponding path program 2 times [2021-11-23 14:02:26,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 14:02:26,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147082476] [2021-11-23 14:02:26,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 14:02:26,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 14:02:26,727 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 14:02:26,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [159143867] [2021-11-23 14:02:26,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 14:02:26,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 14:02:26,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 14:02:26,729 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 14:02:26,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_760c7ae0-287e-46dd-90a3-695297b2557d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 14:02:27,614 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-23 14:02:27,614 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 14:02:27,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 2048 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 14:02:27,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 14:02:28,413 INFO L354 Elim1Store]: treesize reduction 41, result has 18.0 percent of original size [2021-11-23 14:02:28,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 14:02:28,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2021-11-23 14:02:28,688 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-23 14:02:28,688 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 14:02:28,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 14:02:28,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147082476] [2021-11-23 14:02:28,689 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 14:02:28,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [159143867] [2021-11-23 14:02:28,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [159143867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 14:02:28,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 14:02:28,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-11-23 14:02:28,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897781594] [2021-11-23 14:02:28,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 14:02:28,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-23 14:02:28,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 14:02:28,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-23 14:02:28,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-11-23 14:02:28,693 INFO L87 Difference]: Start difference. First operand 15435 states and 21350 transitions. Second operand has 14 states, 14 states have (on average 8.714285714285714) internal successors, (122), 14 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)