./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF --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 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:29:02,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:29:02,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:29:02,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:29:02,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:29:02,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:29:02,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:29:02,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:29:02,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:29:02,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:29:02,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:29:02,210 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:29:02,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:29:02,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:29:02,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:29:02,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:29:02,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:29:02,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:29:02,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:29:02,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:29:02,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:29:02,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:29:02,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:29:02,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:29:02,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:29:02,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:29:02,235 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:29:02,236 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:29:02,236 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:29:02,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:29:02,238 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:29:02,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:29:02,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:29:02,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:29:02,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:29:02,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:29:02,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:29:02,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:29:02,244 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:29:02,245 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:29:02,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:29:02,247 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-20 07:29:02,273 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:29:02,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:29:02,274 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:29:02,274 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:29:02,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:29:02,280 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:29:02,281 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:29:02,281 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:29:02,282 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:29:02,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:29:02,282 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:29:02,282 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:29:02,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:29:02,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:29:02,283 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:29:02,283 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:29:02,284 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:29:02,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:29:02,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:29:02,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:29:02,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:29:02,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:29:02,286 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:29:02,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:29:02,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:29:02,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:29:02,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:29:02,288 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:29:02,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:29:02,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:29:02,289 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:29:02,289 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_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2021-11-20 07:29:02,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:29:02,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:29:02,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:29:02,587 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:29:02,588 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:29:02,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-20 07:29:02,658 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/data/1f96a6687/3b1472b24ea24694be5c284ddb615779/FLAG3b726cac0 [2021-11-20 07:29:03,572 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:29:03,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-20 07:29:03,622 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/data/1f96a6687/3b1472b24ea24694be5c284ddb615779/FLAG3b726cac0 [2021-11-20 07:29:04,029 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/data/1f96a6687/3b1472b24ea24694be5c284ddb615779 [2021-11-20 07:29:04,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:29:04,039 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:29:04,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:29:04,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:29:04,044 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:29:04,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:29:04" (1/1) ... [2021-11-20 07:29:04,046 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e654827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:04, skipping insertion in model container [2021-11-20 07:29:04,046 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:29:04" (1/1) ... [2021-11-20 07:29:04,053 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:29:04,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:29:06,815 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_d0b34678-be75-4e0c-bc86-0f2f626d469b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-20 07:29:06,818 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_d0b34678-be75-4e0c-bc86-0f2f626d469b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-20 07:29:06,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:29:06,927 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:29:07,351 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_d0b34678-be75-4e0c-bc86-0f2f626d469b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-11-20 07:29:07,352 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_d0b34678-be75-4e0c-bc86-0f2f626d469b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-11-20 07:29:07,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:29:07,629 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:29:07,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07 WrapperNode [2021-11-20 07:29:07,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:29:07,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:29:07,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:29:07,632 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:29:07,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:07,782 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,014 INFO L137 Inliner]: procedures = 393, calls = 3228, calls flagged for inlining = 185, calls inlined = 165, statements flattened = 5478 [2021-11-20 07:29:08,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:29:08,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:29:08,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:29:08,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:29:08,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,321 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:29:08,394 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:29:08,394 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:29:08,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:29:08,395 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (1/1) ... [2021-11-20 07:29:08,403 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:29:08,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:29:08,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:29:08,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d0b34678-be75-4e0c-bc86-0f2f626d469b/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:29:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-20 07:29:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-20 07:29:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-20 07:29:08,478 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-20 07:29:08,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-20 07:29:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-20 07:29:08,479 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-20 07:29:08,479 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-20 07:29:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2021-11-20 07:29:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2021-11-20 07:29:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2021-11-20 07:29:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2021-11-20 07:29:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-20 07:29:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-20 07:29:08,480 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-20 07:29:08,480 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-20 07:29:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-20 07:29:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-20 07:29:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-20 07:29:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-20 07:29:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 07:29:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-20 07:29:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-20 07:29:08,481 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2021-11-20 07:29:08,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2021-11-20 07:29:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-20 07:29:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-20 07:29:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2021-11-20 07:29:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2021-11-20 07:29:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-20 07:29:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-20 07:29:08,482 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-20 07:29:08,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-20 07:29:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2021-11-20 07:29:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2021-11-20 07:29:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-20 07:29:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-20 07:29:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 07:29:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-20 07:29:08,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-20 07:29:08,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-20 07:29:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-20 07:29:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2021-11-20 07:29:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2021-11-20 07:29:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-20 07:29:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-20 07:29:08,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-20 07:29:08,484 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-20 07:29:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-20 07:29:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-20 07:29:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2021-11-20 07:29:08,485 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2021-11-20 07:29:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2021-11-20 07:29:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2021-11-20 07:29:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 07:29:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-20 07:29:08,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-20 07:29:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:29:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-20 07:29:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-20 07:29:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 07:29:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:29:08,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-20 07:29:08,488 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-20 07:29:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-20 07:29:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-20 07:29:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-20 07:29:08,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-20 07:29:08,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-20 07:29:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-20 07:29:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-20 07:29:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-20 07:29:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-20 07:29:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-20 07:29:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-20 07:29:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-20 07:29:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-20 07:29:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:29:08,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:29:08,491 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2021-11-20 07:29:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2021-11-20 07:29:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-20 07:29:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-20 07:29:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-20 07:29:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-20 07:29:08,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-20 07:29:08,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-20 07:29:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2021-11-20 07:29:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2021-11-20 07:29:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-20 07:29:08,493 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-20 07:29:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-20 07:29:08,494 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2021-11-20 07:29:08,494 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-20 07:29:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-20 07:29:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2021-11-20 07:29:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2021-11-20 07:29:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-20 07:29:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-20 07:29:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-20 07:29:08,495 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-20 07:29:08,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 07:29:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2021-11-20 07:29:08,496 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2021-11-20 07:29:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-20 07:29:08,496 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-20 07:29:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 07:29:08,496 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2021-11-20 07:29:08,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2021-11-20 07:29:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2021-11-20 07:29:08,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2021-11-20 07:29:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-20 07:29:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2021-11-20 07:29:08,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2021-11-20 07:29:08,497 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-20 07:29:08,498 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-20 07:29:08,499 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-20 07:29:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-20 07:29:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2021-11-20 07:29:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2021-11-20 07:29:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-20 07:29:08,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-20 07:29:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-20 07:29:08,504 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-20 07:29:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-20 07:29:08,505 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-20 07:29:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2021-11-20 07:29:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2021-11-20 07:29:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2021-11-20 07:29:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2021-11-20 07:29:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-20 07:29:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-20 07:29:08,510 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-20 07:29:08,510 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-20 07:29:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-11-20 07:29:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-11-20 07:29:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-20 07:29:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-20 07:29:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 07:29:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-20 07:29:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-20 07:29:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-20 07:29:08,511 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-20 07:29:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2021-11-20 07:29:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2021-11-20 07:29:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-20 07:29:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-20 07:29:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2021-11-20 07:29:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2021-11-20 07:29:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2021-11-20 07:29:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2021-11-20 07:29:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-20 07:29:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2021-11-20 07:29:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2021-11-20 07:29:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:29:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2021-11-20 07:29:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2021-11-20 07:29:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-20 07:29:08,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-20 07:29:09,316 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:29:09,319 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:29:09,914 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-20 07:29:15,215 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-20 07:29:15,601 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:29:15,619 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:29:15,619 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:29:15,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:29:15 BoogieIcfgContainer [2021-11-20 07:29:15,623 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:29:15,625 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:29:15,625 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:29:15,629 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:29:15,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:29:04" (1/3) ... [2021-11-20 07:29:15,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd121b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:29:15, skipping insertion in model container [2021-11-20 07:29:15,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:29:07" (2/3) ... [2021-11-20 07:29:15,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd121b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:29:15, skipping insertion in model container [2021-11-20 07:29:15,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:29:15" (3/3) ... [2021-11-20 07:29:15,632 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-20 07:29:15,637 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:29:15,637 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:29:15,692 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:29:15,699 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 [2021-11-20 07:29:15,699 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:29:15,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 1406 states, 1013 states have (on average 1.297137216189536) internal successors, (1314), 1021 states have internal predecessors, (1314), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2021-11-20 07:29:15,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-20 07:29:15,771 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:15,772 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:15,773 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:15,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:15,778 INFO L85 PathProgramCache]: Analyzing trace with hash -347322488, now seen corresponding path program 1 times [2021-11-20 07:29:15,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:15,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692771424] [2021-11-20 07:29:15,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:15,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:16,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:16,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:16,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:16,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:16,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:16,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:16,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:29:16,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-20 07:29:16,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:16,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692771424] [2021-11-20 07:29:16,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692771424] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:16,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:16,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:16,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683829542] [2021-11-20 07:29:16,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:17,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:17,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:17,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:17,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:17,042 INFO L87 Difference]: Start difference. First operand has 1406 states, 1013 states have (on average 1.297137216189536) internal successors, (1314), 1021 states have internal predecessors, (1314), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-20 07:29:20,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:20,112 INFO L93 Difference]: Finished difference Result 4160 states and 5850 transitions. [2021-11-20 07:29:20,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:20,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2021-11-20 07:29:20,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:20,155 INFO L225 Difference]: With dead ends: 4160 [2021-11-20 07:29:20,155 INFO L226 Difference]: Without dead ends: 2702 [2021-11-20 07:29:20,175 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:20,180 INFO L933 BasicCegarLoop]: 2158 mSDtfsCounter, 2144 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:20,182 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 4916 Invalid, 1669 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [785 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-11-20 07:29:20,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-11-20 07:29:20,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2646. [2021-11-20 07:29:20,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 1938 states have (on average 1.2961816305469556) internal successors, (2512), 1952 states have internal predecessors, (2512), 573 states have call successors, (573), 134 states have call predecessors, (573), 134 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2021-11-20 07:29:20,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3658 transitions. [2021-11-20 07:29:20,510 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3658 transitions. Word has length 165 [2021-11-20 07:29:20,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:20,514 INFO L470 AbstractCegarLoop]: Abstraction has 2646 states and 3658 transitions. [2021-11-20 07:29:20,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-11-20 07:29:20,515 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3658 transitions. [2021-11-20 07:29:20,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-20 07:29:20,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:20,534 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:20,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:29:20,535 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:20,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:20,545 INFO L85 PathProgramCache]: Analyzing trace with hash -1754380236, now seen corresponding path program 1 times [2021-11-20 07:29:20,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:20,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306421953] [2021-11-20 07:29:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:20,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:20,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:20,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:20,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:20,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:20,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:20,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:20,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:20,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:21,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:21,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:21,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:21,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:21,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-20 07:29:21,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:29:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:21,250 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-20 07:29:21,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:21,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306421953] [2021-11-20 07:29:21,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306421953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:21,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:21,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:21,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345369172] [2021-11-20 07:29:21,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:21,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:21,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:21,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:21,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:21,255 INFO L87 Difference]: Start difference. First operand 2646 states and 3658 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 07:29:23,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:23,817 INFO L93 Difference]: Finished difference Result 7458 states and 10348 transitions. [2021-11-20 07:29:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:23,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-11-20 07:29:23,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:23,860 INFO L225 Difference]: With dead ends: 7458 [2021-11-20 07:29:23,861 INFO L226 Difference]: Without dead ends: 4841 [2021-11-20 07:29:23,874 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:23,880 INFO L933 BasicCegarLoop]: 2045 mSDtfsCounter, 1763 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:23,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1930 Valid, 4676 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 07:29:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2021-11-20 07:29:24,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4731. [2021-11-20 07:29:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4731 states, 3436 states have (on average 1.2974388824214202) internal successors, (4458), 3464 states have internal predecessors, (4458), 1038 states have call successors, (1038), 256 states have call predecessors, (1038), 256 states have return successors, (1044), 1024 states have call predecessors, (1044), 1038 states have call successors, (1044) [2021-11-20 07:29:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4731 states to 4731 states and 6540 transitions. [2021-11-20 07:29:24,156 INFO L78 Accepts]: Start accepts. Automaton has 4731 states and 6540 transitions. Word has length 180 [2021-11-20 07:29:24,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:24,158 INFO L470 AbstractCegarLoop]: Abstraction has 4731 states and 6540 transitions. [2021-11-20 07:29:24,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 07:29:24,158 INFO L276 IsEmpty]: Start isEmpty. Operand 4731 states and 6540 transitions. [2021-11-20 07:29:24,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-20 07:29:24,163 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:24,163 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:24,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:29:24,163 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:24,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:24,166 INFO L85 PathProgramCache]: Analyzing trace with hash 450289277, now seen corresponding path program 1 times [2021-11-20 07:29:24,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:24,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755958048] [2021-11-20 07:29:24,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:24,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:24,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:24,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:24,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:24,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:24,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:24,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:24,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-20 07:29:24,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-20 07:29:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:24,890 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-20 07:29:24,890 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:24,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755958048] [2021-11-20 07:29:24,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755958048] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:24,891 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:24,891 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:24,891 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935840093] [2021-11-20 07:29:24,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:24,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:24,892 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:24,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:24,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:24,893 INFO L87 Difference]: Start difference. First operand 4731 states and 6540 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 07:29:27,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:27,010 INFO L93 Difference]: Finished difference Result 11159 states and 15411 transitions. [2021-11-20 07:29:27,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:27,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 182 [2021-11-20 07:29:27,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:27,071 INFO L225 Difference]: With dead ends: 11159 [2021-11-20 07:29:27,072 INFO L226 Difference]: Without dead ends: 6457 [2021-11-20 07:29:27,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:27,099 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 1049 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 5114 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:27,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 5114 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-20 07:29:27,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6457 states. [2021-11-20 07:29:27,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6457 to 6311. [2021-11-20 07:29:27,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4650 states have (on average 1.2939784946236559) internal successors, (6017), 4696 states have internal predecessors, (6017), 1307 states have call successors, (1307), 353 states have call predecessors, (1307), 353 states have return successors, (1313), 1279 states have call predecessors, (1313), 1307 states have call successors, (1313) [2021-11-20 07:29:27,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8637 transitions. [2021-11-20 07:29:27,528 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8637 transitions. Word has length 182 [2021-11-20 07:29:27,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:27,530 INFO L470 AbstractCegarLoop]: Abstraction has 6311 states and 8637 transitions. [2021-11-20 07:29:27,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-11-20 07:29:27,531 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8637 transitions. [2021-11-20 07:29:27,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-20 07:29:27,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:27,537 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:27,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 07:29:27,537 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:27,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:27,538 INFO L85 PathProgramCache]: Analyzing trace with hash -885392, now seen corresponding path program 1 times [2021-11-20 07:29:27,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:27,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557826281] [2021-11-20 07:29:27,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:27,539 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:27,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:27,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:27,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:27,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:27,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:27,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:28,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-20 07:29:28,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-20 07:29:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-20 07:29:28,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-20 07:29:28,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:28,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557826281] [2021-11-20 07:29:28,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557826281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:28,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:28,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:28,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45599534] [2021-11-20 07:29:28,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:28,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:28,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:28,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:28,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:28,073 INFO L87 Difference]: Start difference. First operand 6311 states and 8637 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-20 07:29:30,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:30,810 INFO L93 Difference]: Finished difference Result 19075 states and 26173 transitions. [2021-11-20 07:29:30,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:30,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 188 [2021-11-20 07:29:30,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:30,936 INFO L225 Difference]: With dead ends: 19075 [2021-11-20 07:29:30,936 INFO L226 Difference]: Without dead ends: 12793 [2021-11-20 07:29:30,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:30,970 INFO L933 BasicCegarLoop]: 2147 mSDtfsCounter, 2108 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:30,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2308 Valid, 4894 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 07:29:30,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12793 states. [2021-11-20 07:29:31,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12793 to 12503. [2021-11-20 07:29:31,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12503 states, 9210 states have (on average 1.294245385450597) internal successors, (11920), 9310 states have internal predecessors, (11920), 2586 states have call successors, (2586), 706 states have call predecessors, (2586), 706 states have return successors, (2598), 2522 states have call predecessors, (2598), 2586 states have call successors, (2598) [2021-11-20 07:29:31,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12503 states to 12503 states and 17104 transitions. [2021-11-20 07:29:31,637 INFO L78 Accepts]: Start accepts. Automaton has 12503 states and 17104 transitions. Word has length 188 [2021-11-20 07:29:31,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:31,638 INFO L470 AbstractCegarLoop]: Abstraction has 12503 states and 17104 transitions. [2021-11-20 07:29:31,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-11-20 07:29:31,639 INFO L276 IsEmpty]: Start isEmpty. Operand 12503 states and 17104 transitions. [2021-11-20 07:29:31,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-20 07:29:31,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:31,647 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:31,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 07:29:31,647 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:31,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:31,648 INFO L85 PathProgramCache]: Analyzing trace with hash 362972016, now seen corresponding path program 1 times [2021-11-20 07:29:31,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:31,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301700853] [2021-11-20 07:29:31,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:31,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:31,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:32,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:32,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 07:29:32,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-20 07:29:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-20 07:29:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-20 07:29:32,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:32,255 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-20 07:29:32,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:32,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301700853] [2021-11-20 07:29:32,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301700853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:32,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:32,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:32,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671456049] [2021-11-20 07:29:32,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:32,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:32,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:32,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:32,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:32,259 INFO L87 Difference]: Start difference. First operand 12503 states and 17104 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:29:35,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:35,260 INFO L93 Difference]: Finished difference Result 37883 states and 51938 transitions. [2021-11-20 07:29:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:35,261 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 205 [2021-11-20 07:29:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:35,398 INFO L225 Difference]: With dead ends: 37883 [2021-11-20 07:29:35,398 INFO L226 Difference]: Without dead ends: 25409 [2021-11-20 07:29:35,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:35,453 INFO L933 BasicCegarLoop]: 3349 mSDtfsCounter, 1919 mSDsluCounter, 3486 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 6835 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:35,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2119 Valid, 6835 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 07:29:35,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25409 states. [2021-11-20 07:29:36,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25409 to 24847. [2021-11-20 07:29:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24847 states, 18306 states have (on average 1.2934556975854912) internal successors, (23678), 18506 states have internal predecessors, (23678), 5128 states have call successors, (5128), 1412 states have call predecessors, (5128), 1412 states have return successors, (5152), 5000 states have call predecessors, (5152), 5128 states have call successors, (5152) [2021-11-20 07:29:36,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24847 states to 24847 states and 33958 transitions. [2021-11-20 07:29:36,635 INFO L78 Accepts]: Start accepts. Automaton has 24847 states and 33958 transitions. Word has length 205 [2021-11-20 07:29:36,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:36,636 INFO L470 AbstractCegarLoop]: Abstraction has 24847 states and 33958 transitions. [2021-11-20 07:29:36,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:29:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 24847 states and 33958 transitions. [2021-11-20 07:29:36,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-20 07:29:36,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:36,642 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 12, 12, 12, 12, 12, 12, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:36,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 07:29:36,642 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:36,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:36,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1033994697, now seen corresponding path program 1 times [2021-11-20 07:29:36,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:36,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [20762549] [2021-11-20 07:29:36,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:36,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:36,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:36,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:36,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:36,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:36,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:37,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:37,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:37,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:37,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:37,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:37,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:37,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-20 07:29:37,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-20 07:29:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-20 07:29:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-20 07:29:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-20 07:29:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2021-11-20 07:29:37,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:37,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [20762549] [2021-11-20 07:29:37,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [20762549] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:37,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:37,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:37,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253645649] [2021-11-20 07:29:37,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:37,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:37,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:37,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:37,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:37,234 INFO L87 Difference]: Start difference. First operand 24847 states and 33958 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:29:39,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:39,864 INFO L93 Difference]: Finished difference Result 51011 states and 69531 transitions. [2021-11-20 07:29:39,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:39,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 206 [2021-11-20 07:29:39,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:39,997 INFO L225 Difference]: With dead ends: 51011 [2021-11-20 07:29:39,997 INFO L226 Difference]: Without dead ends: 26193 [2021-11-20 07:29:40,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:40,085 INFO L933 BasicCegarLoop]: 1845 mSDtfsCounter, 409 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 4400 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:40,086 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 4400 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 07:29:40,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26193 states. [2021-11-20 07:29:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26193 to 25593. [2021-11-20 07:29:41,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25593 states, 18787 states have (on average 1.2876989407569064) internal successors, (24192), 18987 states have internal predecessors, (24192), 5257 states have call successors, (5257), 1548 states have call predecessors, (5257), 1548 states have return successors, (5281), 5129 states have call predecessors, (5281), 5257 states have call successors, (5281) [2021-11-20 07:29:41,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25593 states to 25593 states and 34730 transitions. [2021-11-20 07:29:41,463 INFO L78 Accepts]: Start accepts. Automaton has 25593 states and 34730 transitions. Word has length 206 [2021-11-20 07:29:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:41,466 INFO L470 AbstractCegarLoop]: Abstraction has 25593 states and 34730 transitions. [2021-11-20 07:29:41,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-20 07:29:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 25593 states and 34730 transitions. [2021-11-20 07:29:41,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-20 07:29:41,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:41,477 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:41,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 07:29:41,478 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:41,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:41,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1219407040, now seen corresponding path program 1 times [2021-11-20 07:29:41,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:41,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711162575] [2021-11-20 07:29:41,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:41,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:41,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:41,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:41,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:41,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:41,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:41,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:41,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:42,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 07:29:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 07:29:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 07:29:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 07:29:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 07:29:42,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 07:29:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-20 07:29:42,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 07:29:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 07:29:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-20 07:29:42,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-20 07:29:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:42,173 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 07:29:42,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:42,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711162575] [2021-11-20 07:29:42,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711162575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:42,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:42,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:42,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976811009] [2021-11-20 07:29:42,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:42,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:42,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:42,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:42,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:42,177 INFO L87 Difference]: Start difference. First operand 25593 states and 34730 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 07:29:45,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:45,886 INFO L93 Difference]: Finished difference Result 74701 states and 101664 transitions. [2021-11-20 07:29:45,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:45,887 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 265 [2021-11-20 07:29:45,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:46,166 INFO L225 Difference]: With dead ends: 74701 [2021-11-20 07:29:46,167 INFO L226 Difference]: Without dead ends: 49187 [2021-11-20 07:29:46,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:46,412 INFO L933 BasicCegarLoop]: 3500 mSDtfsCounter, 1792 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 7074 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:46,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1980 Valid, 7074 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-20 07:29:46,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49187 states. [2021-11-20 07:29:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49187 to 48145. [2021-11-20 07:29:48,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48145 states, 35507 states have (on average 1.2907877319965078) internal successors, (45832), 35859 states have internal predecessors, (45832), 9765 states have call successors, (9765), 2872 states have call predecessors, (9765), 2872 states have return successors, (9813), 9557 states have call predecessors, (9813), 9765 states have call successors, (9813) [2021-11-20 07:29:48,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48145 states to 48145 states and 65410 transitions. [2021-11-20 07:29:48,911 INFO L78 Accepts]: Start accepts. Automaton has 48145 states and 65410 transitions. Word has length 265 [2021-11-20 07:29:48,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:48,912 INFO L470 AbstractCegarLoop]: Abstraction has 48145 states and 65410 transitions. [2021-11-20 07:29:48,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 07:29:48,913 INFO L276 IsEmpty]: Start isEmpty. Operand 48145 states and 65410 transitions. [2021-11-20 07:29:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-20 07:29:48,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:48,923 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:48,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 07:29:48,924 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:48,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:48,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1696517317, now seen corresponding path program 1 times [2021-11-20 07:29:48,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:48,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687073782] [2021-11-20 07:29:48,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:48,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:49,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:49,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:49,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 07:29:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 07:29:49,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 07:29:49,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 07:29:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 07:29:49,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 07:29:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-20 07:29:49,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-20 07:29:49,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-20 07:29:49,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-20 07:29:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-20 07:29:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:49,779 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-20 07:29:49,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:49,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687073782] [2021-11-20 07:29:49,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687073782] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:49,780 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:49,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:49,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444297607] [2021-11-20 07:29:49,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:49,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:49,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:49,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:49,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:49,782 INFO L87 Difference]: Start difference. First operand 48145 states and 65410 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 07:29:53,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:29:53,738 INFO L93 Difference]: Finished difference Result 120273 states and 163697 transitions. [2021-11-20 07:29:53,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:29:53,740 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 267 [2021-11-20 07:29:53,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:29:54,398 INFO L225 Difference]: With dead ends: 120273 [2021-11-20 07:29:54,398 INFO L226 Difference]: Without dead ends: 71833 [2021-11-20 07:29:54,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:29:54,547 INFO L933 BasicCegarLoop]: 3504 mSDtfsCounter, 1789 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-20 07:29:54,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 7085 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-20 07:29:54,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71833 states. [2021-11-20 07:29:56,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71833 to 70351. [2021-11-20 07:29:56,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70351 states, 51925 states have (on average 1.2924217621569571) internal successors, (67109), 52425 states have internal predecessors, (67109), 14237 states have call successors, (14237), 4188 states have call predecessors, (14237), 4188 states have return successors, (14305), 13952 states have call predecessors, (14305), 14236 states have call successors, (14305) [2021-11-20 07:29:57,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70351 states to 70351 states and 95651 transitions. [2021-11-20 07:29:57,643 INFO L78 Accepts]: Start accepts. Automaton has 70351 states and 95651 transitions. Word has length 267 [2021-11-20 07:29:57,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:29:57,644 INFO L470 AbstractCegarLoop]: Abstraction has 70351 states and 95651 transitions. [2021-11-20 07:29:57,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 07:29:57,645 INFO L276 IsEmpty]: Start isEmpty. Operand 70351 states and 95651 transitions. [2021-11-20 07:29:57,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-20 07:29:57,654 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:29:57,654 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:29:57,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 07:29:57,655 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:29:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:29:57,656 INFO L85 PathProgramCache]: Analyzing trace with hash 170478624, now seen corresponding path program 1 times [2021-11-20 07:29:57,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:29:57,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862496177] [2021-11-20 07:29:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:29:57,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:29:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:57,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:29:57,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:57,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:57,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:57,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:29:57,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:57,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:57,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:29:57,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:57,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:29:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:29:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:29:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:29:58,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:29:58,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:29:58,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:29:58,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:29:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:29:58,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:29:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 07:29:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 07:29:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 07:29:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:29:58,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-20 07:29:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:29:58,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-20 07:29:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-20 07:29:58,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-20 07:29:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-20 07:29:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-20 07:29:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-20 07:29:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:29:58,244 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2021-11-20 07:29:58,245 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:29:58,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862496177] [2021-11-20 07:29:58,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862496177] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:29:58,245 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:29:58,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:29:58,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287119678] [2021-11-20 07:29:58,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:29:58,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:29:58,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:29:58,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:29:58,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:29:58,250 INFO L87 Difference]: Start difference. First operand 70351 states and 95651 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 07:30:02,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:02,643 INFO L93 Difference]: Finished difference Result 169491 states and 229663 transitions. [2021-11-20 07:30:02,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:30:02,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 272 [2021-11-20 07:30:02,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:03,088 INFO L225 Difference]: With dead ends: 169491 [2021-11-20 07:30:03,088 INFO L226 Difference]: Without dead ends: 99219 [2021-11-20 07:30:03,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:30:03,273 INFO L933 BasicCegarLoop]: 2758 mSDtfsCounter, 1529 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:03,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1690 Valid, 5528 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-20 07:30:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99219 states. [2021-11-20 07:30:06,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99219 to 97274. [2021-11-20 07:30:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97274 states, 71906 states have (on average 1.2880149083525714) internal successors, (92616), 72573 states have internal predecessors, (92616), 19107 states have call successors, (19107), 6260 states have call predecessors, (19107), 6260 states have return successors, (19175), 18703 states have call predecessors, (19175), 19106 states have call successors, (19175) [2021-11-20 07:30:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97274 states to 97274 states and 130898 transitions. [2021-11-20 07:30:06,895 INFO L78 Accepts]: Start accepts. Automaton has 97274 states and 130898 transitions. Word has length 272 [2021-11-20 07:30:06,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:06,896 INFO L470 AbstractCegarLoop]: Abstraction has 97274 states and 130898 transitions. [2021-11-20 07:30:06,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-20 07:30:06,896 INFO L276 IsEmpty]: Start isEmpty. Operand 97274 states and 130898 transitions. [2021-11-20 07:30:06,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-20 07:30:06,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:06,907 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:06,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 07:30:06,907 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:30:06,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:06,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2144596284, now seen corresponding path program 1 times [2021-11-20 07:30:06,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:06,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376637016] [2021-11-20 07:30:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:06,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:07,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:07,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:07,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:30:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:30:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:07,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:30:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:30:07,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:30:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:30:07,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:30:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 07:30:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 07:30:07,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 07:30:07,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 07:30:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 07:30:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 07:30:07,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-20 07:30:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:30:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-20 07:30:07,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-20 07:30:07,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-20 07:30:07,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-20 07:30:07,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-20 07:30:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-20 07:30:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:07,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1040 trivial. 0 not checked. [2021-11-20 07:30:07,458 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:07,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376637016] [2021-11-20 07:30:07,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376637016] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:07,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:07,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 07:30:07,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447107501] [2021-11-20 07:30:07,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:07,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 07:30:07,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:07,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 07:30:07,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 07:30:07,462 INFO L87 Difference]: Start difference. First operand 97274 states and 130898 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 07:30:12,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:12,508 INFO L93 Difference]: Finished difference Result 227851 states and 306843 transitions. [2021-11-20 07:30:12,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:30:12,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 291 [2021-11-20 07:30:12,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:13,433 INFO L225 Difference]: With dead ends: 227851 [2021-11-20 07:30:13,433 INFO L226 Difference]: Without dead ends: 130317 [2021-11-20 07:30:13,593 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:30:13,593 INFO L933 BasicCegarLoop]: 3501 mSDtfsCounter, 1787 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 7076 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:13,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1973 Valid, 7076 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 07:30:13,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130317 states. [2021-11-20 07:30:16,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130317 to 97274. [2021-11-20 07:30:16,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97274 states, 71906 states have (on average 1.2880010013072622) internal successors, (92615), 72573 states have internal predecessors, (92615), 19107 states have call successors, (19107), 6260 states have call predecessors, (19107), 6260 states have return successors, (19175), 18703 states have call predecessors, (19175), 19106 states have call successors, (19175) [2021-11-20 07:30:17,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97274 states to 97274 states and 130897 transitions. [2021-11-20 07:30:17,327 INFO L78 Accepts]: Start accepts. Automaton has 97274 states and 130897 transitions. Word has length 291 [2021-11-20 07:30:17,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:30:17,328 INFO L470 AbstractCegarLoop]: Abstraction has 97274 states and 130897 transitions. [2021-11-20 07:30:17,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-11-20 07:30:17,329 INFO L276 IsEmpty]: Start isEmpty. Operand 97274 states and 130897 transitions. [2021-11-20 07:30:17,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-20 07:30:17,341 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:30:17,342 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:30:17,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-20 07:30:17,342 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:30:17,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:30:17,343 INFO L85 PathProgramCache]: Analyzing trace with hash 227255181, now seen corresponding path program 1 times [2021-11-20 07:30:17,343 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:30:17,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558117496] [2021-11-20 07:30:17,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:30:17,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:30:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:30:18,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-20 07:30:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-20 07:30:18,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:30:18,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-20 07:30:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-20 07:30:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-20 07:30:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-20 07:30:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-20 07:30:18,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-20 07:30:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-20 07:30:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-20 07:30:18,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-20 07:30:18,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-20 07:30:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-20 07:30:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-20 07:30:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-20 07:30:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-20 07:30:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-20 07:30:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-20 07:30:18,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-20 07:30:18,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-20 07:30:18,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-20 07:30:18,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-20 07:30:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-20 07:30:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-20 07:30:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-20 07:30:18,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 07:30:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:30:18,861 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2021-11-20 07:30:18,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:30:18,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558117496] [2021-11-20 07:30:18,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558117496] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:30:18,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:30:18,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:30:18,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568604711] [2021-11-20 07:30:18,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:30:18,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:30:18,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:30:18,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:30:18,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:30:18,866 INFO L87 Difference]: Start difference. First operand 97274 states and 130897 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) [2021-11-20 07:30:23,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:30:23,684 INFO L93 Difference]: Finished difference Result 196365 states and 266098 transitions. [2021-11-20 07:30:23,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 07:30:23,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25) Word has length 289 [2021-11-20 07:30:23,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:30:24,210 INFO L225 Difference]: With dead ends: 196365 [2021-11-20 07:30:24,212 INFO L226 Difference]: Without dead ends: 99170 [2021-11-20 07:30:24,454 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:30:24,455 INFO L933 BasicCegarLoop]: 1821 mSDtfsCounter, 1835 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:30:24,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1998 Valid, 3911 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-20 07:30:24,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99170 states.