./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 18:25:47,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 18:25:47,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 18:25:47,134 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 18:25:47,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 18:25:47,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 18:25:47,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 18:25:47,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 18:25:47,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 18:25:47,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 18:25:47,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 18:25:47,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 18:25:47,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 18:25:47,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 18:25:47,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 18:25:47,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 18:25:47,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 18:25:47,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 18:25:47,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 18:25:47,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 18:25:47,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 18:25:47,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 18:25:47,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 18:25:47,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 18:25:47,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 18:25:47,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 18:25:47,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 18:25:47,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 18:25:47,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 18:25:47,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 18:25:47,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 18:25:47,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 18:25:47,169 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 18:25:47,170 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 18:25:47,171 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 18:25:47,171 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 18:25:47,172 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 18:25:47,172 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 18:25:47,173 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 18:25:47,174 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 18:25:47,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 18:25:47,176 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-18 18:25:47,197 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 18:25:47,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 18:25:47,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 18:25:47,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 18:25:47,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 18:25:47,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 18:25:47,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 18:25:47,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 18:25:47,201 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 18:25:47,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 18:25:47,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 18:25:47,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 18:25:47,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 18:25:47,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 18:25:47,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 18:25:47,203 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-18 18:25:47,203 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-18 18:25:47,204 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-18 18:25:47,204 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 18:25:47,204 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 18:25:47,205 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 18:25:47,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 18:25:47,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 18:25:47,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 18:25:47,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 18:25:47,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:25:47,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 18:25:47,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 18:25:47,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 18:25:47,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 18:25:47,211 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_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d [2022-11-18 18:25:47,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 18:25:47,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 18:25:47,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 18:25:47,508 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 18:25:47,509 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 18:25:47,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-18 18:25:47,571 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/data/5c4dadf3c/915a8e3c3eb44a969a5b1c4eeea6bc63/FLAGc96e115c2 [2022-11-18 18:25:48,189 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 18:25:48,190 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i [2022-11-18 18:25:48,217 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/data/5c4dadf3c/915a8e3c3eb44a969a5b1c4eeea6bc63/FLAGc96e115c2 [2022-11-18 18:25:48,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/data/5c4dadf3c/915a8e3c3eb44a969a5b1c4eeea6bc63 [2022-11-18 18:25:48,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 18:25:48,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 18:25:48,405 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 18:25:48,405 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 18:25:48,410 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 18:25:48,411 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:25:48" (1/1) ... [2022-11-18 18:25:48,413 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1986c4ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:48, skipping insertion in model container [2022-11-18 18:25:48,414 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:25:48" (1/1) ... [2022-11-18 18:25:48,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 18:25:48,500 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 18:25:49,453 WARN L234 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_6c593f46-9ecb-475a-960d-814e2162bfff/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-18 18:25:49,499 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:25:49,512 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 18:25:49,562 WARN L234 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_6c593f46-9ecb-475a-960d-814e2162bfff/sv-benchmarks/c/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2022-11-18 18:25:49,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 18:25:49,716 INFO L208 MainTranslator]: Completed translation [2022-11-18 18:25:49,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49 WrapperNode [2022-11-18 18:25:49,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 18:25:49,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 18:25:49,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 18:25:49,719 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 18:25:49,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,785 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2022-11-18 18:25:49,785 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 18:25:49,786 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 18:25:49,786 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 18:25:49,786 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 18:25:49,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,825 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 18:25:49,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 18:25:49,835 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 18:25:49,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 18:25:49,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (1/1) ... [2022-11-18 18:25:49,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 18:25:49,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:25:49,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 18:25:49,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 18:25:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-11-18 18:25:49,936 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-11-18 18:25:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 18:25:49,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-18 18:25:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-11-18 18:25:49,937 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-11-18 18:25:49,937 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-18 18:25:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 18:25:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-18 18:25:49,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 18:25:49,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 18:25:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 18:25:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-18 18:25:49,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 18:25:49,941 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-18 18:25:50,352 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 18:25:50,358 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 18:25:50,872 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 18:25:50,883 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 18:25:50,883 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 18:25:50,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:25:50 BoogieIcfgContainer [2022-11-18 18:25:50,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 18:25:50,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 18:25:50,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 18:25:50,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 18:25:50,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:25:48" (1/3) ... [2022-11-18 18:25:50,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9d4d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:25:50, skipping insertion in model container [2022-11-18 18:25:50,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:25:49" (2/3) ... [2022-11-18 18:25:50,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b9d4d2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:25:50, skipping insertion in model container [2022-11-18 18:25:50,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:25:50" (3/3) ... [2022-11-18 18:25:50,914 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-11-18 18:25:50,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 18:25:50,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2022-11-18 18:25:50,939 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-18 18:25:51,092 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-11-18 18:25:51,140 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-18 18:25:51,158 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 323 places, 353 transitions, 736 flow [2022-11-18 18:25:51,162 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 323 places, 353 transitions, 736 flow [2022-11-18 18:25:51,164 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 323 places, 353 transitions, 736 flow [2022-11-18 18:25:51,353 INFO L130 PetriNetUnfolder]: 33/371 cut-off events. [2022-11-18 18:25:51,353 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-18 18:25:51,363 INFO L83 FinitePrefix]: Finished finitePrefix Result has 383 conditions, 371 events. 33/371 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1009 event pairs, 0 based on Foata normal form. 0/302 useless extension candidates. Maximal degree in co-relation 243. Up to 11 conditions per place. [2022-11-18 18:25:51,374 INFO L119 LiptonReduction]: Number of co-enabled transitions 12794 [2022-11-18 18:26:07,186 INFO L134 LiptonReduction]: Checked pairs total: 18289 [2022-11-18 18:26:07,187 INFO L136 LiptonReduction]: Total number of compositions: 449 [2022-11-18 18:26:07,197 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 69 places, 78 transitions, 186 flow [2022-11-18 18:26:07,284 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1003 states, 860 states have (on average 3.3313953488372094) internal successors, (2865), 1002 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:07,306 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 18:26:07,313 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74d341c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 18:26:07,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-18 18:26:07,319 INFO L276 IsEmpty]: Start isEmpty. Operand has 1003 states, 860 states have (on average 3.3313953488372094) internal successors, (2865), 1002 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:07,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-18 18:26:07,325 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:07,326 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-18 18:26:07,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:07,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:07,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1217, now seen corresponding path program 1 times [2022-11-18 18:26:07,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:07,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459968247] [2022-11-18 18:26:07,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:07,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:07,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:07,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:07,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459968247] [2022-11-18 18:26:07,589 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459968247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:07,589 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:07,589 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-18 18:26:07,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742218492] [2022-11-18 18:26:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:07,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 18:26:07,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:07,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 18:26:07,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:26:07,631 INFO L87 Difference]: Start difference. First operand has 1003 states, 860 states have (on average 3.3313953488372094) internal successors, (2865), 1002 states have internal predecessors, (2865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:07,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:07,768 INFO L93 Difference]: Finished difference Result 989 states and 2772 transitions. [2022-11-18 18:26:07,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 18:26:07,771 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-18 18:26:07,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:07,804 INFO L225 Difference]: With dead ends: 989 [2022-11-18 18:26:07,804 INFO L226 Difference]: Without dead ends: 979 [2022-11-18 18:26:07,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 18:26:07,812 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:07,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 979 states. [2022-11-18 18:26:07,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 979 to 979. [2022-11-18 18:26:07,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 979 states, 851 states have (on average 3.2326674500587544) internal successors, (2751), 978 states have internal predecessors, (2751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:07,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 979 states to 979 states and 2751 transitions. [2022-11-18 18:26:07,957 INFO L78 Accepts]: Start accepts. Automaton has 979 states and 2751 transitions. Word has length 1 [2022-11-18 18:26:07,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:07,958 INFO L495 AbstractCegarLoop]: Abstraction has 979 states and 2751 transitions. [2022-11-18 18:26:07,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:07,958 INFO L276 IsEmpty]: Start isEmpty. Operand 979 states and 2751 transitions. [2022-11-18 18:26:07,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:26:07,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:07,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:26:07,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 18:26:07,960 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:07,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:07,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1206057, now seen corresponding path program 1 times [2022-11-18 18:26:07,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:07,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379380820] [2022-11-18 18:26:07,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:07,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:08,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:08,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:08,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:08,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379380820] [2022-11-18 18:26:08,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379380820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:08,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:08,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:26:08,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439218787] [2022-11-18 18:26:08,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:08,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:08,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:08,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:08,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:08,130 INFO L87 Difference]: Start difference. First operand 979 states and 2751 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:08,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:08,276 INFO L93 Difference]: Finished difference Result 1349 states and 3880 transitions. [2022-11-18 18:26:08,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:08,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 18:26:08,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:08,286 INFO L225 Difference]: With dead ends: 1349 [2022-11-18 18:26:08,286 INFO L226 Difference]: Without dead ends: 1346 [2022-11-18 18:26:08,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:08,288 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 31 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:08,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 20 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:08,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2022-11-18 18:26:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1168. [2022-11-18 18:26:08,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1168 states, 1040 states have (on average 3.2971153846153847) internal successors, (3429), 1167 states have internal predecessors, (3429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:08,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1168 states to 1168 states and 3429 transitions. [2022-11-18 18:26:08,337 INFO L78 Accepts]: Start accepts. Automaton has 1168 states and 3429 transitions. Word has length 3 [2022-11-18 18:26:08,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:08,337 INFO L495 AbstractCegarLoop]: Abstraction has 1168 states and 3429 transitions. [2022-11-18 18:26:08,338 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:08,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1168 states and 3429 transitions. [2022-11-18 18:26:08,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-18 18:26:08,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:08,338 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-18 18:26:08,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 18:26:08,339 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:08,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:08,340 INFO L85 PathProgramCache]: Analyzing trace with hash 1207298, now seen corresponding path program 1 times [2022-11-18 18:26:08,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:08,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25040868] [2022-11-18 18:26:08,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:08,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:08,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:08,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:08,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25040868] [2022-11-18 18:26:08,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25040868] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:08,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:08,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:08,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668886966] [2022-11-18 18:26:08,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:08,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:08,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:08,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:08,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:08,533 INFO L87 Difference]: Start difference. First operand 1168 states and 3429 transitions. Second operand has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:08,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:08,639 INFO L93 Difference]: Finished difference Result 1165 states and 3426 transitions. [2022-11-18 18:26:08,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:08,640 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2022-11-18 18:26:08,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:08,649 INFO L225 Difference]: With dead ends: 1165 [2022-11-18 18:26:08,649 INFO L226 Difference]: Without dead ends: 1164 [2022-11-18 18:26:08,650 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:08,651 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:08,651 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:08,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2022-11-18 18:26:08,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1164. [2022-11-18 18:26:08,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1164 states, 1038 states have (on average 3.2996146435452793) internal successors, (3425), 1163 states have internal predecessors, (3425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1164 states to 1164 states and 3425 transitions. [2022-11-18 18:26:08,696 INFO L78 Accepts]: Start accepts. Automaton has 1164 states and 3425 transitions. Word has length 3 [2022-11-18 18:26:08,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:08,697 INFO L495 AbstractCegarLoop]: Abstraction has 1164 states and 3425 transitions. [2022-11-18 18:26:08,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1164 states and 3425 transitions. [2022-11-18 18:26:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 18:26:08,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:08,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 18:26:08,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 18:26:08,698 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:08,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash 37263449, now seen corresponding path program 1 times [2022-11-18 18:26:08,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:08,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364534589] [2022-11-18 18:26:08,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:08,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:08,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:08,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:08,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364534589] [2022-11-18 18:26:08,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364534589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:08,885 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:08,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:26:08,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567349540] [2022-11-18 18:26:08,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:08,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:08,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:08,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:08,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:08,890 INFO L87 Difference]: Start difference. First operand 1164 states and 3425 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:09,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:09,086 INFO L93 Difference]: Finished difference Result 1737 states and 4919 transitions. [2022-11-18 18:26:09,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:09,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-18 18:26:09,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:09,101 INFO L225 Difference]: With dead ends: 1737 [2022-11-18 18:26:09,101 INFO L226 Difference]: Without dead ends: 1737 [2022-11-18 18:26:09,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:09,105 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 38 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:09,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 10 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:26:09,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1737 states. [2022-11-18 18:26:09,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1737 to 1254. [2022-11-18 18:26:09,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 1128 states have (on average 3.400709219858156) internal successors, (3836), 1253 states have internal predecessors, (3836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:09,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 3836 transitions. [2022-11-18 18:26:09,161 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 3836 transitions. Word has length 4 [2022-11-18 18:26:09,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:09,163 INFO L495 AbstractCegarLoop]: Abstraction has 1254 states and 3836 transitions. [2022-11-18 18:26:09,163 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:09,163 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 3836 transitions. [2022-11-18 18:26:09,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-18 18:26:09,164 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:09,164 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-18 18:26:09,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 18:26:09,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:09,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:09,169 INFO L85 PathProgramCache]: Analyzing trace with hash 37263450, now seen corresponding path program 1 times [2022-11-18 18:26:09,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:09,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737232087] [2022-11-18 18:26:09,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:09,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:09,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:09,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:09,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:09,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737232087] [2022-11-18 18:26:09,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737232087] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:09,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:09,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-18 18:26:09,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008442645] [2022-11-18 18:26:09,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:09,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:09,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:09,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:09,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:09,435 INFO L87 Difference]: Start difference. First operand 1254 states and 3836 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:09,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:09,527 INFO L93 Difference]: Finished difference Result 1116 states and 3415 transitions. [2022-11-18 18:26:09,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:09,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-18 18:26:09,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:09,541 INFO L225 Difference]: With dead ends: 1116 [2022-11-18 18:26:09,541 INFO L226 Difference]: Without dead ends: 1113 [2022-11-18 18:26:09,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:09,544 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 39 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:09,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 7 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:09,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1113 states. [2022-11-18 18:26:09,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1113 to 1113. [2022-11-18 18:26:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1113 states, 1017 states have (on average 3.3490658800393316) internal successors, (3406), 1112 states have internal predecessors, (3406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:09,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1113 states to 1113 states and 3406 transitions. [2022-11-18 18:26:09,593 INFO L78 Accepts]: Start accepts. Automaton has 1113 states and 3406 transitions. Word has length 4 [2022-11-18 18:26:09,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:09,594 INFO L495 AbstractCegarLoop]: Abstraction has 1113 states and 3406 transitions. [2022-11-18 18:26:09,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:09,594 INFO L276 IsEmpty]: Start isEmpty. Operand 1113 states and 3406 transitions. [2022-11-18 18:26:09,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 18:26:09,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:09,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 18:26:09,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 18:26:09,599 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:09,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1155263549, now seen corresponding path program 1 times [2022-11-18 18:26:09,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:09,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219738660] [2022-11-18 18:26:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:09,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:09,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:09,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:09,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219738660] [2022-11-18 18:26:09,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219738660] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:09,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:09,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:09,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187618655] [2022-11-18 18:26:09,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:09,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:26:09,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:09,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:26:09,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:26:09,795 INFO L87 Difference]: Start difference. First operand 1113 states and 3406 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:10,025 INFO L93 Difference]: Finished difference Result 1536 states and 4279 transitions. [2022-11-18 18:26:10,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:26:10,026 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 18:26:10,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:10,037 INFO L225 Difference]: With dead ends: 1536 [2022-11-18 18:26:10,037 INFO L226 Difference]: Without dead ends: 1536 [2022-11-18 18:26:10,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:26:10,039 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 66 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:10,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 17 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:26:10,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2022-11-18 18:26:10,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 1176. [2022-11-18 18:26:10,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1176 states, 1080 states have (on average 3.3222222222222224) internal successors, (3588), 1175 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1176 states to 1176 states and 3588 transitions. [2022-11-18 18:26:10,086 INFO L78 Accepts]: Start accepts. Automaton has 1176 states and 3588 transitions. Word has length 5 [2022-11-18 18:26:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:10,086 INFO L495 AbstractCegarLoop]: Abstraction has 1176 states and 3588 transitions. [2022-11-18 18:26:10,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1176 states and 3588 transitions. [2022-11-18 18:26:10,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 18:26:10,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:10,087 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 18:26:10,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 18:26:10,088 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:10,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:10,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1155263550, now seen corresponding path program 1 times [2022-11-18 18:26:10,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:10,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585839860] [2022-11-18 18:26:10,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:10,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:10,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:10,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585839860] [2022-11-18 18:26:10,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585839860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:10,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:10,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:10,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85854020] [2022-11-18 18:26:10,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:10,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:26:10,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:10,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:26:10,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:26:10,367 INFO L87 Difference]: Start difference. First operand 1176 states and 3588 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:10,525 INFO L93 Difference]: Finished difference Result 1279 states and 3612 transitions. [2022-11-18 18:26:10,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:26:10,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 18:26:10,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:10,534 INFO L225 Difference]: With dead ends: 1279 [2022-11-18 18:26:10,534 INFO L226 Difference]: Without dead ends: 1277 [2022-11-18 18:26:10,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:26:10,535 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 110 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:10,536 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 4 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:10,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2022-11-18 18:26:10,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1075. [2022-11-18 18:26:10,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1075 states, 997 states have (on average 3.220661985957874) internal successors, (3211), 1074 states have internal predecessors, (3211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1075 states to 1075 states and 3211 transitions. [2022-11-18 18:26:10,579 INFO L78 Accepts]: Start accepts. Automaton has 1075 states and 3211 transitions. Word has length 5 [2022-11-18 18:26:10,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:10,580 INFO L495 AbstractCegarLoop]: Abstraction has 1075 states and 3211 transitions. [2022-11-18 18:26:10,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1075 states and 3211 transitions. [2022-11-18 18:26:10,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 18:26:10,581 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:10,581 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 18:26:10,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 18:26:10,581 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr7ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:10,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:10,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1450401026, now seen corresponding path program 1 times [2022-11-18 18:26:10,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:10,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189508912] [2022-11-18 18:26:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:10,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:10,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:10,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:10,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189508912] [2022-11-18 18:26:10,682 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189508912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:10,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:10,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:26:10,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037399555] [2022-11-18 18:26:10,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:10,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:26:10,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:10,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:26:10,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:26:10,684 INFO L87 Difference]: Start difference. First operand 1075 states and 3211 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:10,870 INFO L93 Difference]: Finished difference Result 1400 states and 4010 transitions. [2022-11-18 18:26:10,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:26:10,871 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-18 18:26:10,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:10,880 INFO L225 Difference]: With dead ends: 1400 [2022-11-18 18:26:10,880 INFO L226 Difference]: Without dead ends: 1381 [2022-11-18 18:26:10,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:26:10,881 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 70 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:10,882 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 55 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 18:26:10,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1381 states. [2022-11-18 18:26:10,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1381 to 1141. [2022-11-18 18:26:10,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1141 states, 1067 states have (on average 3.1930646672914715) internal successors, (3407), 1140 states have internal predecessors, (3407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1141 states to 1141 states and 3407 transitions. [2022-11-18 18:26:10,926 INFO L78 Accepts]: Start accepts. Automaton has 1141 states and 3407 transitions. Word has length 6 [2022-11-18 18:26:10,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:10,926 INFO L495 AbstractCegarLoop]: Abstraction has 1141 states and 3407 transitions. [2022-11-18 18:26:10,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:10,926 INFO L276 IsEmpty]: Start isEmpty. Operand 1141 states and 3407 transitions. [2022-11-18 18:26:10,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 18:26:10,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:10,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:10,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 18:26:10,928 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:10,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:10,929 INFO L85 PathProgramCache]: Analyzing trace with hash 2013575791, now seen corresponding path program 1 times [2022-11-18 18:26:10,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:10,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759880630] [2022-11-18 18:26:10,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:10,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:10,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759880630] [2022-11-18 18:26:10,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759880630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:10,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:10,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:26:10,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577429909] [2022-11-18 18:26:10,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:10,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:10,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:10,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:10,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:10,989 INFO L87 Difference]: Start difference. First operand 1141 states and 3407 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:11,079 INFO L93 Difference]: Finished difference Result 1157 states and 3489 transitions. [2022-11-18 18:26:11,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:11,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 18:26:11,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:11,088 INFO L225 Difference]: With dead ends: 1157 [2022-11-18 18:26:11,088 INFO L226 Difference]: Without dead ends: 1157 [2022-11-18 18:26:11,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,089 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:11,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 20 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1157 states. [2022-11-18 18:26:11,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1157 to 1153. [2022-11-18 18:26:11,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1153 states, 1079 states have (on average 3.2187210379981464) internal successors, (3473), 1152 states have internal predecessors, (3473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1153 states to 1153 states and 3473 transitions. [2022-11-18 18:26:11,130 INFO L78 Accepts]: Start accepts. Automaton has 1153 states and 3473 transitions. Word has length 7 [2022-11-18 18:26:11,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:11,130 INFO L495 AbstractCegarLoop]: Abstraction has 1153 states and 3473 transitions. [2022-11-18 18:26:11,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,130 INFO L276 IsEmpty]: Start isEmpty. Operand 1153 states and 3473 transitions. [2022-11-18 18:26:11,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 18:26:11,132 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:11,132 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:11,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 18:26:11,148 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:11,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:11,148 INFO L85 PathProgramCache]: Analyzing trace with hash -1973465657, now seen corresponding path program 1 times [2022-11-18 18:26:11,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:11,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310464850] [2022-11-18 18:26:11,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:11,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:11,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:11,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310464850] [2022-11-18 18:26:11,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310464850] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:11,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:11,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:11,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662455203] [2022-11-18 18:26:11,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:11,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:11,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,244 INFO L87 Difference]: Start difference. First operand 1153 states and 3473 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:11,364 INFO L93 Difference]: Finished difference Result 1033 states and 3009 transitions. [2022-11-18 18:26:11,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:11,365 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 18:26:11,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:11,371 INFO L225 Difference]: With dead ends: 1033 [2022-11-18 18:26:11,372 INFO L226 Difference]: Without dead ends: 1001 [2022-11-18 18:26:11,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,373 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 25 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:11,373 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 30 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2022-11-18 18:26:11,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2022-11-18 18:26:11,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 923 states have (on average 3.1473456121343446) internal successors, (2905), 1000 states have internal predecessors, (2905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 2905 transitions. [2022-11-18 18:26:11,407 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 2905 transitions. Word has length 8 [2022-11-18 18:26:11,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:11,408 INFO L495 AbstractCegarLoop]: Abstraction has 1001 states and 2905 transitions. [2022-11-18 18:26:11,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,408 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 2905 transitions. [2022-11-18 18:26:11,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 18:26:11,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:11,410 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:11,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 18:26:11,410 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:11,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:11,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1032760328, now seen corresponding path program 1 times [2022-11-18 18:26:11,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:11,411 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44981546] [2022-11-18 18:26:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:11,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:11,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:11,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:11,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44981546] [2022-11-18 18:26:11,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44981546] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:11,482 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:11,482 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:26:11,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129346740] [2022-11-18 18:26:11,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:11,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:11,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:11,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:11,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,484 INFO L87 Difference]: Start difference. First operand 1001 states and 2905 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:11,580 INFO L93 Difference]: Finished difference Result 865 states and 2318 transitions. [2022-11-18 18:26:11,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:11,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 18:26:11,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:11,587 INFO L225 Difference]: With dead ends: 865 [2022-11-18 18:26:11,587 INFO L226 Difference]: Without dead ends: 855 [2022-11-18 18:26:11,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,588 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 21 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:11,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:11,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2022-11-18 18:26:11,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2022-11-18 18:26:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 793 states have (on average 2.8827238335435057) internal successors, (2286), 854 states have internal predecessors, (2286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 2286 transitions. [2022-11-18 18:26:11,618 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 2286 transitions. Word has length 9 [2022-11-18 18:26:11,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:11,618 INFO L495 AbstractCegarLoop]: Abstraction has 855 states and 2286 transitions. [2022-11-18 18:26:11,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,619 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 2286 transitions. [2022-11-18 18:26:11,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 18:26:11,620 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:11,620 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:11,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 18:26:11,621 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:11,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:11,621 INFO L85 PathProgramCache]: Analyzing trace with hash -666302875, now seen corresponding path program 1 times [2022-11-18 18:26:11,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:11,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060394178] [2022-11-18 18:26:11,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:11,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:11,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:11,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060394178] [2022-11-18 18:26:11,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060394178] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:11,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:11,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:26:11,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948045852] [2022-11-18 18:26:11,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:11,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:11,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:11,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,689 INFO L87 Difference]: Start difference. First operand 855 states and 2286 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:11,805 INFO L93 Difference]: Finished difference Result 565 states and 1435 transitions. [2022-11-18 18:26:11,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:11,806 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 18:26:11,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:11,810 INFO L225 Difference]: With dead ends: 565 [2022-11-18 18:26:11,810 INFO L226 Difference]: Without dead ends: 553 [2022-11-18 18:26:11,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,811 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:11,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 24 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:11,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2022-11-18 18:26:11,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2022-11-18 18:26:11,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 514 states have (on average 2.737354085603113) internal successors, (1407), 552 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 1407 transitions. [2022-11-18 18:26:11,831 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 1407 transitions. Word has length 9 [2022-11-18 18:26:11,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:11,831 INFO L495 AbstractCegarLoop]: Abstraction has 553 states and 1407 transitions. [2022-11-18 18:26:11,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:11,831 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 1407 transitions. [2022-11-18 18:26:11,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 18:26:11,832 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:11,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:11,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 18:26:11,833 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:11,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:11,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1965687421, now seen corresponding path program 1 times [2022-11-18 18:26:11,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:11,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480126194] [2022-11-18 18:26:11,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:11,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:11,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:11,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:11,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480126194] [2022-11-18 18:26:11,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480126194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:11,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:11,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 18:26:11,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917480074] [2022-11-18 18:26:11,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:11,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:11,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:11,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:11,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:11,958 INFO L87 Difference]: Start difference. First operand 553 states and 1407 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:12,047 INFO L93 Difference]: Finished difference Result 321 states and 783 transitions. [2022-11-18 18:26:12,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:12,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-18 18:26:12,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:12,050 INFO L225 Difference]: With dead ends: 321 [2022-11-18 18:26:12,050 INFO L226 Difference]: Without dead ends: 313 [2022-11-18 18:26:12,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:12,051 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 27 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:12,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 20 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:12,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-11-18 18:26:12,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 291. [2022-11-18 18:26:12,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 272 states have (on average 2.7058823529411766) internal successors, (736), 290 states have internal predecessors, (736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 736 transitions. [2022-11-18 18:26:12,062 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 736 transitions. Word has length 10 [2022-11-18 18:26:12,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:12,062 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 736 transitions. [2022-11-18 18:26:12,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,063 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 736 transitions. [2022-11-18 18:26:12,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 18:26:12,064 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:12,064 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:12,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-18 18:26:12,064 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:12,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash 2015576476, now seen corresponding path program 1 times [2022-11-18 18:26:12,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:12,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612611013] [2022-11-18 18:26:12,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:12,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:12,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:12,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:12,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612611013] [2022-11-18 18:26:12,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612611013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:12,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:12,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:12,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247742947] [2022-11-18 18:26:12,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:12,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:12,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:12,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:12,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:12,153 INFO L87 Difference]: Start difference. First operand 291 states and 736 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:12,279 INFO L93 Difference]: Finished difference Result 406 states and 1012 transitions. [2022-11-18 18:26:12,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:12,280 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 18:26:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:12,283 INFO L225 Difference]: With dead ends: 406 [2022-11-18 18:26:12,283 INFO L226 Difference]: Without dead ends: 406 [2022-11-18 18:26:12,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:12,284 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 26 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:12,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 11 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:12,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2022-11-18 18:26:12,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 302. [2022-11-18 18:26:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 283 states have (on average 2.7137809187279154) internal successors, (768), 301 states have internal predecessors, (768), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 768 transitions. [2022-11-18 18:26:12,296 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 768 transitions. Word has length 11 [2022-11-18 18:26:12,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:12,297 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 768 transitions. [2022-11-18 18:26:12,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,297 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 768 transitions. [2022-11-18 18:26:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 18:26:12,298 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:12,298 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:12,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-18 18:26:12,299 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2015576477, now seen corresponding path program 1 times [2022-11-18 18:26:12,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:12,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818764944] [2022-11-18 18:26:12,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:12,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:12,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:12,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:12,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818764944] [2022-11-18 18:26:12,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818764944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:12,424 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:12,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:12,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020809597] [2022-11-18 18:26:12,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:12,425 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:12,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:12,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:12,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:12,427 INFO L87 Difference]: Start difference. First operand 302 states and 768 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:12,545 INFO L93 Difference]: Finished difference Result 301 states and 766 transitions. [2022-11-18 18:26:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:12,546 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 18:26:12,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:12,548 INFO L225 Difference]: With dead ends: 301 [2022-11-18 18:26:12,548 INFO L226 Difference]: Without dead ends: 301 [2022-11-18 18:26:12,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:12,549 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 27 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:12,549 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 11 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:12,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2022-11-18 18:26:12,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2022-11-18 18:26:12,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 283 states have (on average 2.706713780918728) internal successors, (766), 300 states have internal predecessors, (766), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 766 transitions. [2022-11-18 18:26:12,560 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 766 transitions. Word has length 11 [2022-11-18 18:26:12,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:12,560 INFO L495 AbstractCegarLoop]: Abstraction has 301 states and 766 transitions. [2022-11-18 18:26:12,560 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,560 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 766 transitions. [2022-11-18 18:26:12,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:26:12,561 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:12,561 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:12,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-18 18:26:12,562 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:12,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:12,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1941616796, now seen corresponding path program 1 times [2022-11-18 18:26:12,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:12,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713487461] [2022-11-18 18:26:12,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:12,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:12,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:12,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:12,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713487461] [2022-11-18 18:26:12,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713487461] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:12,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:12,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:12,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526497150] [2022-11-18 18:26:12,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:12,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 18:26:12,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:12,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 18:26:12,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:26:12,839 INFO L87 Difference]: Start difference. First operand 301 states and 766 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:12,984 INFO L93 Difference]: Finished difference Result 308 states and 772 transitions. [2022-11-18 18:26:12,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:26:12,984 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 18:26:12,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:12,986 INFO L225 Difference]: With dead ends: 308 [2022-11-18 18:26:12,987 INFO L226 Difference]: Without dead ends: 307 [2022-11-18 18:26:12,987 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 18:26:12,987 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:12,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 12 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:12,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2022-11-18 18:26:12,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 305. [2022-11-18 18:26:12,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 287 states have (on average 2.682926829268293) internal successors, (770), 304 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:12,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 770 transitions. [2022-11-18 18:26:12,999 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 770 transitions. Word has length 12 [2022-11-18 18:26:13,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:13,001 INFO L495 AbstractCegarLoop]: Abstraction has 305 states and 770 transitions. [2022-11-18 18:26:13,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,001 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 770 transitions. [2022-11-18 18:26:13,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 18:26:13,002 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:13,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:13,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-18 18:26:13,002 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:13,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:13,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1941619849, now seen corresponding path program 1 times [2022-11-18 18:26:13,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:13,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856386808] [2022-11-18 18:26:13,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:13,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:13,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 18:26:13,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:13,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856386808] [2022-11-18 18:26:13,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856386808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:13,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:13,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:13,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327538783] [2022-11-18 18:26:13,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:13,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:13,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:13,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:13,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:13,119 INFO L87 Difference]: Start difference. First operand 305 states and 770 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:13,183 INFO L93 Difference]: Finished difference Result 304 states and 769 transitions. [2022-11-18 18:26:13,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:13,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 18:26:13,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:13,186 INFO L225 Difference]: With dead ends: 304 [2022-11-18 18:26:13,186 INFO L226 Difference]: Without dead ends: 286 [2022-11-18 18:26:13,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:13,187 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:13,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 15 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:13,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-11-18 18:26:13,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 286. [2022-11-18 18:26:13,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 269 states have (on average 2.724907063197026) internal successors, (733), 285 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 733 transitions. [2022-11-18 18:26:13,196 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 733 transitions. Word has length 12 [2022-11-18 18:26:13,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:13,197 INFO L495 AbstractCegarLoop]: Abstraction has 286 states and 733 transitions. [2022-11-18 18:26:13,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,197 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 733 transitions. [2022-11-18 18:26:13,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 18:26:13,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:13,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:13,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-18 18:26:13,198 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting thread_usbErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:13,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:13,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1086285681, now seen corresponding path program 1 times [2022-11-18 18:26:13,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:13,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935958144] [2022-11-18 18:26:13,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:13,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:13,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:13,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:13,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:13,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935958144] [2022-11-18 18:26:13,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935958144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:13,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:13,285 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528468579] [2022-11-18 18:26:13,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:13,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:13,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:13,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:13,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:13,287 INFO L87 Difference]: Start difference. First operand 286 states and 733 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:13,375 INFO L93 Difference]: Finished difference Result 278 states and 718 transitions. [2022-11-18 18:26:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:13,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 18:26:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:13,377 INFO L225 Difference]: With dead ends: 278 [2022-11-18 18:26:13,377 INFO L226 Difference]: Without dead ends: 278 [2022-11-18 18:26:13,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:13,378 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:13,379 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 7 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:13,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-11-18 18:26:13,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2022-11-18 18:26:13,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 263 states have (on average 2.7300380228136882) internal successors, (718), 277 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 718 transitions. [2022-11-18 18:26:13,388 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 718 transitions. Word has length 13 [2022-11-18 18:26:13,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:13,389 INFO L495 AbstractCegarLoop]: Abstraction has 278 states and 718 transitions. [2022-11-18 18:26:13,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,389 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 718 transitions. [2022-11-18 18:26:13,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 18:26:13,390 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:13,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:13,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-18 18:26:13,390 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting thread_usbErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:13,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:13,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1086285680, now seen corresponding path program 1 times [2022-11-18 18:26:13,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:13,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125447583] [2022-11-18 18:26:13,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:13,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:13,541 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:13,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:13,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125447583] [2022-11-18 18:26:13,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125447583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:13,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:13,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 18:26:13,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227057059] [2022-11-18 18:26:13,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:13,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 18:26:13,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:13,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 18:26:13,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:13,544 INFO L87 Difference]: Start difference. First operand 278 states and 718 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:13,632 INFO L93 Difference]: Finished difference Result 270 states and 703 transitions. [2022-11-18 18:26:13,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 18:26:13,633 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-18 18:26:13,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:13,647 INFO L225 Difference]: With dead ends: 270 [2022-11-18 18:26:13,647 INFO L226 Difference]: Without dead ends: 270 [2022-11-18 18:26:13,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 18:26:13,648 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:13,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 11 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:13,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-18 18:26:13,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2022-11-18 18:26:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 257 states have (on average 2.735408560311284) internal successors, (703), 269 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 703 transitions. [2022-11-18 18:26:13,660 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 703 transitions. Word has length 13 [2022-11-18 18:26:13,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:13,660 INFO L495 AbstractCegarLoop]: Abstraction has 270 states and 703 transitions. [2022-11-18 18:26:13,660 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,661 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 703 transitions. [2022-11-18 18:26:13,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-18 18:26:13,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:13,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:13,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-18 18:26:13,663 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:13,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash -243244008, now seen corresponding path program 1 times [2022-11-18 18:26:13,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:13,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906445212] [2022-11-18 18:26:13,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:13,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:13,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:13,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:13,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:13,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906445212] [2022-11-18 18:26:13,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906445212] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:13,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:13,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:26:13,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143193569] [2022-11-18 18:26:13,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:13,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:26:13,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:13,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:26:13,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:26:13,873 INFO L87 Difference]: Start difference. First operand 270 states and 703 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:13,962 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2022-11-18 18:26:13,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:26:13,963 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-18 18:26:13,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:13,964 INFO L225 Difference]: With dead ends: 240 [2022-11-18 18:26:13,965 INFO L226 Difference]: Without dead ends: 236 [2022-11-18 18:26:13,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:26:13,965 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 39 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:13,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 5 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:13,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-11-18 18:26:13,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 226. [2022-11-18 18:26:13,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 221 states have (on average 2.678733031674208) internal successors, (592), 225 states have internal predecessors, (592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 592 transitions. [2022-11-18 18:26:13,974 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 592 transitions. Word has length 15 [2022-11-18 18:26:13,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:13,974 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 592 transitions. [2022-11-18 18:26:13,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 592 transitions. [2022-11-18 18:26:13,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 18:26:13,975 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:13,975 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:13,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-18 18:26:13,976 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:13,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:13,976 INFO L85 PathProgramCache]: Analyzing trace with hash -2068824001, now seen corresponding path program 1 times [2022-11-18 18:26:13,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:13,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170420242] [2022-11-18 18:26:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:13,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:14,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:14,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:14,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170420242] [2022-11-18 18:26:14,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170420242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:14,365 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:14,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:26:14,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653162666] [2022-11-18 18:26:14,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:14,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 18:26:14,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:14,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 18:26:14,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:26:14,367 INFO L87 Difference]: Start difference. First operand 226 states and 592 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:14,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:14,465 INFO L93 Difference]: Finished difference Result 195 states and 500 transitions. [2022-11-18 18:26:14,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 18:26:14,466 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-18 18:26:14,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:14,467 INFO L225 Difference]: With dead ends: 195 [2022-11-18 18:26:14,467 INFO L226 Difference]: Without dead ends: 171 [2022-11-18 18:26:14,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:26:14,468 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 47 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:14,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 5 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:14,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2022-11-18 18:26:14,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 117. [2022-11-18 18:26:14,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 115 states have (on average 2.4521739130434783) internal successors, (282), 116 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:14,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 282 transitions. [2022-11-18 18:26:14,473 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 282 transitions. Word has length 17 [2022-11-18 18:26:14,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:14,473 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 282 transitions. [2022-11-18 18:26:14,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:14,474 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 282 transitions. [2022-11-18 18:26:14,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-18 18:26:14,474 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:14,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:14,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-18 18:26:14,475 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:14,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:14,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1715413231, now seen corresponding path program 1 times [2022-11-18 18:26:14,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:14,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652721171] [2022-11-18 18:26:14,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:14,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:14,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:14,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:14,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652721171] [2022-11-18 18:26:14,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652721171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 18:26:14,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 18:26:14,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 18:26:14,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950012824] [2022-11-18 18:26:14,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 18:26:14,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 18:26:14,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:14,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 18:26:14,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-18 18:26:14,754 INFO L87 Difference]: Start difference. First operand 117 states and 282 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:14,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:14,915 INFO L93 Difference]: Finished difference Result 116 states and 281 transitions. [2022-11-18 18:26:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 18:26:14,916 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-11-18 18:26:14,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:14,916 INFO L225 Difference]: With dead ends: 116 [2022-11-18 18:26:14,916 INFO L226 Difference]: Without dead ends: 116 [2022-11-18 18:26:14,917 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-18 18:26:14,917 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 31 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:14,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 18:26:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-18 18:26:14,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 105. [2022-11-18 18:26:14,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 2.5) internal successors, (260), 104 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:14,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 260 transitions. [2022-11-18 18:26:14,922 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 260 transitions. Word has length 22 [2022-11-18 18:26:14,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:14,922 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 260 transitions. [2022-11-18 18:26:14,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 260 transitions. [2022-11-18 18:26:14,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-18 18:26:14,923 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:14,923 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:14,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-18 18:26:14,926 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:14,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:14,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1638180721, now seen corresponding path program 1 times [2022-11-18 18:26:14,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:14,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639642728] [2022-11-18 18:26:14,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:14,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:14,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:15,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:15,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:15,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639642728] [2022-11-18 18:26:15,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639642728] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:26:15,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095549897] [2022-11-18 18:26:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:15,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:15,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:15,389 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:26:15,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-18 18:26:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:15,615 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 18:26:15,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:26:15,735 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:15,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 32 [2022-11-18 18:26:15,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2022-11-18 18:26:15,950 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:15,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 37 [2022-11-18 18:26:16,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:16,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:26:16,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:16,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095549897] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:26:16,783 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:26:16,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 18:26:16,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540188475] [2022-11-18 18:26:16,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:26:16,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:26:16,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:16,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:26:16,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:26:16,785 INFO L87 Difference]: Start difference. First operand 105 states and 260 transitions. Second operand has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:17,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:17,003 INFO L93 Difference]: Finished difference Result 165 states and 408 transitions. [2022-11-18 18:26:17,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 18:26:17,004 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-11-18 18:26:17,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:17,005 INFO L225 Difference]: With dead ends: 165 [2022-11-18 18:26:17,005 INFO L226 Difference]: Without dead ends: 139 [2022-11-18 18:26:17,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:26:17,006 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 61 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 196 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:17,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 35 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 203 Invalid, 0 Unknown, 196 Unchecked, 0.2s Time] [2022-11-18 18:26:17,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2022-11-18 18:26:17,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 97. [2022-11-18 18:26:17,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 2.5) internal successors, (240), 96 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 240 transitions. [2022-11-18 18:26:17,010 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 240 transitions. Word has length 23 [2022-11-18 18:26:17,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:17,010 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 240 transitions. [2022-11-18 18:26:17,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.333333333333333) internal successors, (64), 12 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 240 transitions. [2022-11-18 18:26:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 18:26:17,012 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:17,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:17,026 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-18 18:26:17,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-11-18 18:26:17,221 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:17,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:17,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1658167050, now seen corresponding path program 1 times [2022-11-18 18:26:17,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:17,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052468996] [2022-11-18 18:26:17,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:17,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:17,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:17,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:17,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052468996] [2022-11-18 18:26:17,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052468996] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:26:17,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562807138] [2022-11-18 18:26:17,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:17,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:17,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:17,682 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:26:17,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-18 18:26:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:17,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 18:26:17,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:26:18,003 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:18,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 32 [2022-11-18 18:26:18,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:18,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:26:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:19,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1562807138] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:26:19,135 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:26:19,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-11-18 18:26:19,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841759454] [2022-11-18 18:26:19,136 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:26:19,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:26:19,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:19,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:26:19,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:26:19,137 INFO L87 Difference]: Start difference. First operand 97 states and 240 transitions. Second operand has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:19,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:19,319 INFO L93 Difference]: Finished difference Result 197 states and 483 transitions. [2022-11-18 18:26:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:26:19,320 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-18 18:26:19,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:19,321 INFO L225 Difference]: With dead ends: 197 [2022-11-18 18:26:19,321 INFO L226 Difference]: Without dead ends: 133 [2022-11-18 18:26:19,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:26:19,322 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 44 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 98 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:19,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 27 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 109 Invalid, 0 Unknown, 98 Unchecked, 0.2s Time] [2022-11-18 18:26:19,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-18 18:26:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-18 18:26:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.492424242424242) internal successors, (329), 132 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 329 transitions. [2022-11-18 18:26:19,327 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 329 transitions. Word has length 24 [2022-11-18 18:26:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:19,328 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 329 transitions. [2022-11-18 18:26:19,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.090909090909091) internal successors, (56), 11 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 329 transitions. [2022-11-18 18:26:19,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-18 18:26:19,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:19,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:19,339 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-18 18:26:19,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:19,530 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:19,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:19,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1541936214, now seen corresponding path program 2 times [2022-11-18 18:26:19,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:19,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924331395] [2022-11-18 18:26:19,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:19,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:19,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:19,873 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:19,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:19,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924331395] [2022-11-18 18:26:19,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924331395] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:26:19,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046532267] [2022-11-18 18:26:19,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:26:19,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:19,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:26:19,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-18 18:26:20,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:26:20,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:26:20,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 18:26:20,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:26:20,147 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 18:26:20,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-18 18:26:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:20,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:26:20,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:20,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046532267] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:26:20,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:26:20,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4, 4] total 5 [2022-11-18 18:26:20,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324997364] [2022-11-18 18:26:20,377 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:26:20,377 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 18:26:20,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:20,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 18:26:20,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:26:20,378 INFO L87 Difference]: Start difference. First operand 133 states and 329 transitions. Second operand has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:20,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:20,532 INFO L93 Difference]: Finished difference Result 167 states and 408 transitions. [2022-11-18 18:26:20,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 18:26:20,533 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-11-18 18:26:20,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:20,533 INFO L225 Difference]: With dead ends: 167 [2022-11-18 18:26:20,534 INFO L226 Difference]: Without dead ends: 157 [2022-11-18 18:26:20,534 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 41 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-18 18:26:20,534 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 44 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:20,535 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 13 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 44 Unchecked, 0.1s Time] [2022-11-18 18:26:20,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-11-18 18:26:20,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 131. [2022-11-18 18:26:20,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 2.4846153846153847) internal successors, (323), 130 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:20,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 323 transitions. [2022-11-18 18:26:20,540 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 323 transitions. Word has length 24 [2022-11-18 18:26:20,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:20,540 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 323 transitions. [2022-11-18 18:26:20,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:20,540 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 323 transitions. [2022-11-18 18:26:20,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 18:26:20,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:20,541 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:20,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-18 18:26:20,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-11-18 18:26:20,752 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:20,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:20,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1402639879, now seen corresponding path program 1 times [2022-11-18 18:26:20,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:20,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592815613] [2022-11-18 18:26:20,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:20,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:20,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:21,138 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:21,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:21,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592815613] [2022-11-18 18:26:21,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592815613] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:26:21,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543691626] [2022-11-18 18:26:21,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:21,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:21,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:21,144 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:26:21,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-18 18:26:21,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:21,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 18:26:21,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:26:21,422 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:21,422 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 32 [2022-11-18 18:26:21,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2022-11-18 18:26:21,577 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:21,578 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 37 [2022-11-18 18:26:21,628 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 18:26:21,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:26:22,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 18:26:22,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543691626] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:26:22,237 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:26:22,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 18:26:22,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541527850] [2022-11-18 18:26:22,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:26:22,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:26:22,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:22,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:26:22,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:26:22,238 INFO L87 Difference]: Start difference. First operand 131 states and 323 transitions. Second operand has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:22,349 INFO L93 Difference]: Finished difference Result 197 states and 488 transitions. [2022-11-18 18:26:22,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:26:22,350 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 18:26:22,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:22,351 INFO L225 Difference]: With dead ends: 197 [2022-11-18 18:26:22,351 INFO L226 Difference]: Without dead ends: 191 [2022-11-18 18:26:22,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:26:22,352 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 27 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 123 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:22,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 33 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 123 Unchecked, 0.1s Time] [2022-11-18 18:26:22,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-18 18:26:22,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 186. [2022-11-18 18:26:22,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 2.545945945945946) internal successors, (471), 185 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 471 transitions. [2022-11-18 18:26:22,359 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 471 transitions. Word has length 25 [2022-11-18 18:26:22,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:22,359 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 471 transitions. [2022-11-18 18:26:22,359 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.083333333333333) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:22,360 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 471 transitions. [2022-11-18 18:26:22,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 18:26:22,361 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:22,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:22,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-18 18:26:22,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:22,567 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:22,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:22,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1790129533, now seen corresponding path program 2 times [2022-11-18 18:26:22,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:22,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131798780] [2022-11-18 18:26:22,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:22,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-18 18:26:22,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:22,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131798780] [2022-11-18 18:26:22,902 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131798780] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:26:22,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301701235] [2022-11-18 18:26:22,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 18:26:22,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:22,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:22,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:26:22,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-18 18:26:23,140 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 18:26:23,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 18:26:23,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 18:26:23,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:26:23,213 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:23,213 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 32 [2022-11-18 18:26:23,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 19 [2022-11-18 18:26:23,485 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 18:26:23,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:26:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-18 18:26:23,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301701235] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:26:23,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:26:23,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-18 18:26:23,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711292567] [2022-11-18 18:26:23,886 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:26:23,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-18 18:26:23,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:23,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-18 18:26:23,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:26:23,887 INFO L87 Difference]: Start difference. First operand 186 states and 471 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:24,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:24,106 INFO L93 Difference]: Finished difference Result 248 states and 602 transitions. [2022-11-18 18:26:24,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 18:26:24,106 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 18:26:24,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:24,107 INFO L225 Difference]: With dead ends: 248 [2022-11-18 18:26:24,107 INFO L226 Difference]: Without dead ends: 169 [2022-11-18 18:26:24,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2022-11-18 18:26:24,108 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 40 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 131 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:24,108 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 40 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 213 Invalid, 0 Unknown, 131 Unchecked, 0.2s Time] [2022-11-18 18:26:24,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-11-18 18:26:24,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 131. [2022-11-18 18:26:24,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 2.4846153846153847) internal successors, (323), 130 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:24,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 323 transitions. [2022-11-18 18:26:24,114 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 323 transitions. Word has length 25 [2022-11-18 18:26:24,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:24,115 INFO L495 AbstractCegarLoop]: Abstraction has 131 states and 323 transitions. [2022-11-18 18:26:24,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:24,116 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 323 transitions. [2022-11-18 18:26:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 18:26:24,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 18:26:24,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:24,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-18 18:26:24,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-11-18 18:26:24,324 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 28 more)] === [2022-11-18 18:26:24,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 18:26:24,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1987426408, now seen corresponding path program 1 times [2022-11-18 18:26:24,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 18:26:24,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615767064] [2022-11-18 18:26:24,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:24,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 18:26:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:24,744 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 18:26:24,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 18:26:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615767064] [2022-11-18 18:26:24,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615767064] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-18 18:26:24,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657773465] [2022-11-18 18:26:24,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 18:26:24,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-18 18:26:24,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 18:26:24,747 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-18 18:26:24,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-18 18:26:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 18:26:24,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-18 18:26:24,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 18:26:25,030 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:25,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 32 [2022-11-18 18:26:25,072 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 24 [2022-11-18 18:26:25,213 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-18 18:26:25,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 37 [2022-11-18 18:26:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 18:26:25,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 18:26:25,866 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 18:26:25,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657773465] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 18:26:25,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-18 18:26:25,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2022-11-18 18:26:25,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570620612] [2022-11-18 18:26:25,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-18 18:26:25,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-18 18:26:25,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 18:26:25,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-18 18:26:25,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:26:25,870 INFO L87 Difference]: Start difference. First operand 131 states and 323 transitions. Second operand has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:26,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 18:26:26,033 INFO L93 Difference]: Finished difference Result 142 states and 341 transitions. [2022-11-18 18:26:26,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 18:26:26,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-11-18 18:26:26,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 18:26:26,034 INFO L225 Difference]: With dead ends: 142 [2022-11-18 18:26:26,034 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 18:26:26,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-11-18 18:26:26,035 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 34 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 18:26:26,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 27 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 154 Invalid, 0 Unknown, 115 Unchecked, 0.2s Time] [2022-11-18 18:26:26,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 18:26:26,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 18:26:26,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 18:26:26,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2022-11-18 18:26:26,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 18:26:26,036 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 18:26:26,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.2727272727272725) internal successors, (58), 11 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 18:26:26,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 18:26:26,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 18:26:26,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (30 of 31 remaining) [2022-11-18 18:26:26,040 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (29 of 31 remaining) [2022-11-18 18:26:26,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 31 remaining) [2022-11-18 18:26:26,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 31 remaining) [2022-11-18 18:26:26,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (26 of 31 remaining) [2022-11-18 18:26:26,041 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (25 of 31 remaining) [2022-11-18 18:26:26,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 31 remaining) [2022-11-18 18:26:26,042 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 31 remaining) [2022-11-18 18:26:26,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 31 remaining) [2022-11-18 18:26:26,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 31 remaining) [2022-11-18 18:26:26,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (20 of 31 remaining) [2022-11-18 18:26:26,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (19 of 31 remaining) [2022-11-18 18:26:26,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONMEMORY_LEAK (18 of 31 remaining) [2022-11-18 18:26:26,043 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 31 remaining) [2022-11-18 18:26:26,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 31 remaining) [2022-11-18 18:26:26,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 31 remaining) [2022-11-18 18:26:26,044 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 31 remaining) [2022-11-18 18:26:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 31 remaining) [2022-11-18 18:26:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 31 remaining) [2022-11-18 18:26:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONMEMORY_LEAK (11 of 31 remaining) [2022-11-18 18:26:26,045 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2022-11-18 18:26:26,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONMEMORY_LEAK (9 of 31 remaining) [2022-11-18 18:26:26,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONMEMORY_LEAK (8 of 31 remaining) [2022-11-18 18:26:26,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 31 remaining) [2022-11-18 18:26:26,046 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 31 remaining) [2022-11-18 18:26:26,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 31 remaining) [2022-11-18 18:26:26,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 31 remaining) [2022-11-18 18:26:26,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 31 remaining) [2022-11-18 18:26:26,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 31 remaining) [2022-11-18 18:26:26,047 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONMEMORY_LEAK (1 of 31 remaining) [2022-11-18 18:26:26,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 31 remaining) [2022-11-18 18:26:26,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-18 18:26:26,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-11-18 18:26:26,257 INFO L444 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 18:26:26,262 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-18 18:26:26,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 18:26:26,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 06:26:26 BasicIcfg [2022-11-18 18:26:26,267 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 18:26:26,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 18:26:26,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 18:26:26,268 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 18:26:26,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:25:50" (3/4) ... [2022-11-18 18:26:26,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 18:26:26,277 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2022-11-18 18:26:26,278 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2022-11-18 18:26:26,284 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2022-11-18 18:26:26,284 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-18 18:26:26,284 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-18 18:26:26,285 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 18:26:26,329 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 18:26:26,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 18:26:26,329 INFO L158 Benchmark]: Toolchain (without parser) took 37926.56ms. Allocated memory was 121.6MB in the beginning and 377.5MB in the end (delta: 255.9MB). Free memory was 89.3MB in the beginning and 208.9MB in the end (delta: -119.5MB). Peak memory consumption was 139.5MB. Max. memory is 16.1GB. [2022-11-18 18:26:26,330 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 18:26:26,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1312.43ms. Allocated memory is still 121.6MB. Free memory was 89.0MB in the beginning and 83.1MB in the end (delta: 5.9MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. [2022-11-18 18:26:26,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.48ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 79.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 18:26:26,331 INFO L158 Benchmark]: Boogie Preprocessor took 48.38ms. Allocated memory is still 121.6MB. Free memory was 79.8MB in the beginning and 76.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:26:26,331 INFO L158 Benchmark]: RCFGBuilder took 1064.46ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 76.8MB in the beginning and 124.4MB in the end (delta: -47.6MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-11-18 18:26:26,336 INFO L158 Benchmark]: TraceAbstraction took 35365.22ms. Allocated memory was 157.3MB in the beginning and 377.5MB in the end (delta: 220.2MB). Free memory was 123.4MB in the beginning and 212.3MB in the end (delta: -88.9MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. [2022-11-18 18:26:26,338 INFO L158 Benchmark]: Witness Printer took 61.25ms. Allocated memory is still 377.5MB. Free memory was 212.3MB in the beginning and 208.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 18:26:26,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1312.43ms. Allocated memory is still 121.6MB. Free memory was 89.0MB in the beginning and 83.1MB in the end (delta: 5.9MB). Peak memory consumption was 32.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.48ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 79.8MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.38ms. Allocated memory is still 121.6MB. Free memory was 79.8MB in the beginning and 76.8MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1064.46ms. Allocated memory was 121.6MB in the beginning and 157.3MB in the end (delta: 35.7MB). Free memory was 76.8MB in the beginning and 124.4MB in the end (delta: -47.6MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * TraceAbstraction took 35365.22ms. Allocated memory was 157.3MB in the beginning and 377.5MB in the end (delta: 220.2MB). Free memory was 123.4MB in the beginning and 212.3MB in the end (delta: -88.9MB). Peak memory consumption was 130.4MB. Max. memory is 16.1GB. * Witness Printer took 61.25ms. Allocated memory is still 377.5MB. Free memory was 212.3MB in the beginning and 208.9MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 16.0s, 323 PlacesBefore, 69 PlacesAfterwards, 353 TransitionsBefore, 78 TransitionsAfterwards, 12794 CoEnabledTransitionPairs, 7 FixpointIterations, 188 TrivialSequentialCompositions, 166 ConcurrentSequentialCompositions, 30 TrivialYvCompositions, 44 ConcurrentYvCompositions, 21 ChoiceCompositions, 449 TotalNumberOfCompositions, 18289 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13899, independent: 13714, independent conditional: 0, independent unconditional: 13714, dependent: 185, dependent conditional: 0, dependent unconditional: 185, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 9233, independent: 9161, independent conditional: 0, independent unconditional: 9161, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 9233, independent: 9122, independent conditional: 0, independent unconditional: 9122, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 111, independent: 39, independent conditional: 0, independent unconditional: 39, dependent: 72, dependent conditional: 0, dependent unconditional: 72, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 410, independent: 90, independent conditional: 0, independent unconditional: 90, dependent: 320, dependent conditional: 0, dependent unconditional: 320, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 13899, independent: 4553, independent conditional: 0, independent unconditional: 4553, dependent: 113, dependent conditional: 0, dependent unconditional: 113, unknown: 9233, unknown conditional: 0, unknown unconditional: 9233] , Statistics on independence cache: Total cache size (in pairs): 303, Positive cache size: 281, Positive conditional cache size: 0, Positive unconditional cache size: 281, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1795]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 1693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1693]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 350 locations, 31 error locations. Started 1 CEGAR loops. OverallTime: 35.1s, OverallIterations: 28, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 16.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 923 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 923 mSDsluCounter, 529 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 707 IncrementalHoareTripleChecker+Unchecked, 285 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2656 IncrementalHoareTripleChecker+Invalid, 3446 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 244 mSDtfsCounter, 2656 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 367 GetRequests, 261 SyntacticMatches, 14 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1254occurred in iteration=4, InterpolantAutomatonStates: 123, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 28 MinimizatonAttempts, 1781 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 492 NumberOfCodeBlocks, 492 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 598 ConstructedInterpolants, 121 QuantifiedInterpolants, 8228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1881 ConjunctsInSsa, 86 ConjunctsInUnsatCore, 40 InterpolantComputations, 22 PerfectInterpolantSequences, 45/102 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-18 18:26:26,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6c593f46-9ecb-475a-960d-814e2162bfff/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE