./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 --- 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-5e519f3 [2022-11-02 20:49:53,618 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-02 20:49:53,622 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-02 20:49:53,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-02 20:49:53,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-02 20:49:53,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-02 20:49:53,691 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-02 20:49:53,695 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-02 20:49:53,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-02 20:49:53,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-02 20:49:53,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-02 20:49:53,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-02 20:49:53,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-02 20:49:53,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-02 20:49:53,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-02 20:49:53,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-02 20:49:53,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-02 20:49:53,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-02 20:49:53,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-02 20:49:53,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-02 20:49:53,731 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-02 20:49:53,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-02 20:49:53,736 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-02 20:49:53,737 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-02 20:49:53,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-02 20:49:53,747 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-02 20:49:53,747 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-02 20:49:53,749 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-02 20:49:53,750 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-02 20:49:53,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-02 20:49:53,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-02 20:49:53,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-02 20:49:53,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-02 20:49:53,757 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-02 20:49:53,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-02 20:49:53,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-02 20:49:53,760 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-02 20:49:53,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-02 20:49:53,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-02 20:49:53,761 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-02 20:49:53,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-02 20:49:53,763 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-02 20:49:53,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-02 20:49:53,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-02 20:49:53,806 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-02 20:49:53,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-02 20:49:53,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-02 20:49:53,808 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-02 20:49:53,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-02 20:49:53,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-02 20:49:53,809 INFO L138 SettingsManager]: * Use SBE=true [2022-11-02 20:49:53,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-02 20:49:53,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-02 20:49:53,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-02 20:49:53,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-02 20:49:53,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-02 20:49:53,812 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-02 20:49:53,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-02 20:49:53,812 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-02 20:49:53,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-02 20:49:53,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-02 20:49:53,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-02 20:49:53,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-02 20:49:53,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:49:53,814 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-02 20:49:53,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-02 20:49:53,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-02 20:49:53,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-02 20:49:53,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-02 20:49:53,816 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-02 20:49:53,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-02 20:49:53,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-02 20:49:53,817 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_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 [2022-11-02 20:49:54,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-02 20:49:54,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-02 20:49:54,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-02 20:49:54,132 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-02 20:49:54,133 INFO L275 PluginConnector]: CDTParser initialized [2022-11-02 20:49:54,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-11-02 20:49:54,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/data/7acfda738/63afa5cfbeab40f49cc612611987c8a8/FLAG82bbf4e68 [2022-11-02 20:49:55,332 INFO L306 CDTParser]: Found 1 translation units. [2022-11-02 20:49:55,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-11-02 20:49:55,423 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/data/7acfda738/63afa5cfbeab40f49cc612611987c8a8/FLAG82bbf4e68 [2022-11-02 20:49:55,586 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/data/7acfda738/63afa5cfbeab40f49cc612611987c8a8 [2022-11-02 20:49:55,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-02 20:49:55,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-02 20:49:55,594 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-02 20:49:55,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-02 20:49:55,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-02 20:49:55,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:49:55" (1/1) ... [2022-11-02 20:49:55,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13dd6146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:49:55, skipping insertion in model container [2022-11-02 20:49:55,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 08:49:55" (1/1) ... [2022-11-02 20:49:55,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-02 20:49:55,835 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-02 20:50:01,097 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2022-11-02 20:50:01,100 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2022-11-02 20:50:01,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:01,160 INFO L203 MainTranslator]: Completed pre-run [2022-11-02 20:50:01,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2022-11-02 20:50:01,690 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2022-11-02 20:50:01,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-02 20:50:02,055 INFO L208 MainTranslator]: Completed translation [2022-11-02 20:50:02,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02 WrapperNode [2022-11-02 20:50:02,055 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-02 20:50:02,056 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:02,056 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-02 20:50:02,057 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-02 20:50:02,064 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,487 INFO L138 Inliner]: procedures = 623, calls = 3565, calls flagged for inlining = 310, calls inlined = 274, statements flattened = 8094 [2022-11-02 20:50:02,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-02 20:50:02,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-02 20:50:02,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-02 20:50:02,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-02 20:50:02,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,939 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:02,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:03,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-02 20:50:03,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-02 20:50:03,051 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-02 20:50:03,052 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-02 20:50:03,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (1/1) ... [2022-11-02 20:50:03,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-02 20:50:03,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:03,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-02 20:50:03,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-02 20:50:03,131 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-02 20:50:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-02 20:50:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-02 20:50:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-02 20:50:03,132 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2022-11-02 20:50:03,132 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2022-11-02 20:50:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-02 20:50:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-02 20:50:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2022-11-02 20:50:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2022-11-02 20:50:03,133 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2022-11-02 20:50:03,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2022-11-02 20:50:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-02 20:50:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-02 20:50:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-02 20:50:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-02 20:50:03,134 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2022-11-02 20:50:03,134 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2022-11-02 20:50:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2022-11-02 20:50:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2022-11-02 20:50:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-11-02 20:50:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-11-02 20:50:03,135 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-02 20:50:03,135 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-02 20:50:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-02 20:50:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-02 20:50:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-02 20:50:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-02 20:50:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2022-11-02 20:50:03,136 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2022-11-02 20:50:03,136 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2022-11-02 20:50:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2022-11-02 20:50:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2022-11-02 20:50:03,137 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2022-11-02 20:50:03,137 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2022-11-02 20:50:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2022-11-02 20:50:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-02 20:50:03,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-02 20:50:03,138 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-02 20:50:03,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-02 20:50:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2022-11-02 20:50:03,139 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2022-11-02 20:50:03,139 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-02 20:50:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-02 20:50:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-02 20:50:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-02 20:50:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-02 20:50:03,140 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-02 20:50:03,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-02 20:50:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-02 20:50:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-02 20:50:03,141 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-02 20:50:03,141 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2022-11-02 20:50:03,142 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2022-11-02 20:50:03,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-02 20:50:03,143 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-02 20:50:03,143 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2022-11-02 20:50:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2022-11-02 20:50:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-02 20:50:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_106 [2022-11-02 20:50:03,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_106 [2022-11-02 20:50:03,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2022-11-02 20:50:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2022-11-02 20:50:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2022-11-02 20:50:03,145 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2022-11-02 20:50:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-11-02 20:50:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-11-02 20:50:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2022-11-02 20:50:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2022-11-02 20:50:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2022-11-02 20:50:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2022-11-02 20:50:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-02 20:50:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-02 20:50:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-02 20:50:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-02 20:50:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-02 20:50:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2022-11-02 20:50:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2022-11-02 20:50:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-02 20:50:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-02 20:50:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-02 20:50:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-02 20:50:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2022-11-02 20:50:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2022-11-02 20:50:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-02 20:50:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-02 20:50:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-02 20:50:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-02 20:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-02 20:50:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-02 20:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-02 20:50:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-02 20:50:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-02 20:50:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-02 20:50:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-02 20:50:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-02 20:50:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2022-11-02 20:50:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2022-11-02 20:50:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-02 20:50:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-02 20:50:03,153 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-11-02 20:50:03,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-11-02 20:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-02 20:50:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-02 20:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-02 20:50:03,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-02 20:50:03,154 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2022-11-02 20:50:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2022-11-02 20:50:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-02 20:50:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-02 20:50:03,155 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-02 20:50:03,155 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-02 20:50:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2022-11-02 20:50:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2022-11-02 20:50:03,156 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-02 20:50:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2022-11-02 20:50:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2022-11-02 20:50:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-02 20:50:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-02 20:50:03,160 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-02 20:50:03,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-02 20:50:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-02 20:50:03,162 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-11-02 20:50:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-11-02 20:50:03,163 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-02 20:50:03,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-02 20:50:03,169 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-02 20:50:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-02 20:50:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-02 20:50:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-02 20:50:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-11-02 20:50:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-11-02 20:50:03,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-02 20:50:03,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-02 20:50:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-02 20:50:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-02 20:50:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-11-02 20:50:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-11-02 20:50:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2022-11-02 20:50:03,171 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2022-11-02 20:50:03,171 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2022-11-02 20:50:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2022-11-02 20:50:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-02 20:50:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-02 20:50:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2022-11-02 20:50:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2022-11-02 20:50:03,172 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-11-02 20:50:03,172 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-11-02 20:50:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2022-11-02 20:50:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2022-11-02 20:50:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-02 20:50:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-02 20:50:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-02 20:50:03,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-02 20:50:03,173 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2022-11-02 20:50:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2022-11-02 20:50:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-11-02 20:50:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-11-02 20:50:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-02 20:50:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-02 20:50:03,174 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-02 20:50:03,174 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-02 20:50:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2022-11-02 20:50:03,175 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2022-11-02 20:50:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2022-11-02 20:50:03,175 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2022-11-02 20:50:03,175 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2022-11-02 20:50:03,176 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2022-11-02 20:50:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-02 20:50:03,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-02 20:50:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2022-11-02 20:50:03,176 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2022-11-02 20:50:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-11-02 20:50:03,176 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-11-02 20:50:03,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-02 20:50:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-02 20:50:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-02 20:50:03,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-02 20:50:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 20:50:03,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2022-11-02 20:50:03,177 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-02 20:50:03,177 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-02 20:50:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2022-11-02 20:50:03,178 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2022-11-02 20:50:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-02 20:50:03,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-02 20:50:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2022-11-02 20:50:03,178 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2022-11-02 20:50:03,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-02 20:50:03,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2022-11-02 20:50:03,180 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-02 20:50:03,180 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-02 20:50:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2022-11-02 20:50:03,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2022-11-02 20:50:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2022-11-02 20:50:03,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2022-11-02 20:50:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-02 20:50:03,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2022-11-02 20:50:03,181 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-02 20:50:03,181 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-02 20:50:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-02 20:50:03,182 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-02 20:50:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2022-11-02 20:50:03,182 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2022-11-02 20:50:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-02 20:50:03,182 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-02 20:50:03,182 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2022-11-02 20:50:03,183 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2022-11-02 20:50:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-02 20:50:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-02 20:50:03,183 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-02 20:50:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-11-02 20:50:03,183 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-11-02 20:50:03,183 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-02 20:50:03,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-02 20:50:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2022-11-02 20:50:03,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2022-11-02 20:50:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_114 [2022-11-02 20:50:03,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_114 [2022-11-02 20:50:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-02 20:50:03,184 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2022-11-02 20:50:03,184 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2022-11-02 20:50:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2022-11-02 20:50:03,185 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2022-11-02 20:50:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-02 20:50:03,185 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-02 20:50:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_102 [2022-11-02 20:50:03,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_102 [2022-11-02 20:50:03,185 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2022-11-02 20:50:03,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2022-11-02 20:50:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-02 20:50:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2022-11-02 20:50:03,186 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2022-11-02 20:50:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2022-11-02 20:50:03,186 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2022-11-02 20:50:03,186 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-02 20:50:03,186 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-02 20:50:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-02 20:50:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-02 20:50:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-02 20:50:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-02 20:50:03,187 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-11-02 20:50:03,187 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-11-02 20:50:03,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-02 20:50:03,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-02 20:50:03,190 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2022-11-02 20:50:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2022-11-02 20:50:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2022-11-02 20:50:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2022-11-02 20:50:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2022-11-02 20:50:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2022-11-02 20:50:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-02 20:50:03,191 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-02 20:50:03,191 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2022-11-02 20:50:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2022-11-02 20:50:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2022-11-02 20:50:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2022-11-02 20:50:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-02 20:50:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-02 20:50:03,192 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2022-11-02 20:50:03,192 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2022-11-02 20:50:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2022-11-02 20:50:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2022-11-02 20:50:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-02 20:50:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-02 20:50:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-02 20:50:03,193 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2022-11-02 20:50:03,193 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2022-11-02 20:50:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-02 20:50:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-02 20:50:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2022-11-02 20:50:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2022-11-02 20:50:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2022-11-02 20:50:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2022-11-02 20:50:03,194 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-02 20:50:03,194 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-02 20:50:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-11-02 20:50:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-11-02 20:50:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2022-11-02 20:50:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2022-11-02 20:50:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_105 [2022-11-02 20:50:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_105 [2022-11-02 20:50:03,195 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-02 20:50:03,195 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-02 20:50:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2022-11-02 20:50:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2022-11-02 20:50:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2022-11-02 20:50:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2022-11-02 20:50:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-02 20:50:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-02 20:50:03,196 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-02 20:50:03,196 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-02 20:50:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 20:50:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2022-11-02 20:50:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2022-11-02 20:50:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2022-11-02 20:50:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-02 20:50:03,197 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-02 20:50:03,197 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-02 20:50:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-02 20:50:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2022-11-02 20:50:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2022-11-02 20:50:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2022-11-02 20:50:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2022-11-02 20:50:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-02 20:50:03,198 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-02 20:50:03,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-02 20:50:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2022-11-02 20:50:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2022-11-02 20:50:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-02 20:50:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-02 20:50:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2022-11-02 20:50:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2022-11-02 20:50:03,199 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2022-11-02 20:50:03,199 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2022-11-02 20:50:04,499 INFO L235 CfgBuilder]: Building ICFG [2022-11-02 20:50:04,503 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-02 20:50:04,995 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-02 20:50:18,374 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-02 20:50:18,762 INFO L276 CfgBuilder]: Performing block encoding [2022-11-02 20:50:18,790 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-02 20:50:18,790 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-02 20:50:18,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:18 BoogieIcfgContainer [2022-11-02 20:50:18,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-02 20:50:18,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-02 20:50:18,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-02 20:50:18,802 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-02 20:50:18,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 08:49:55" (1/3) ... [2022-11-02 20:50:18,803 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234cffaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:18, skipping insertion in model container [2022-11-02 20:50:18,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 08:50:02" (2/3) ... [2022-11-02 20:50:18,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@234cffaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 08:50:18, skipping insertion in model container [2022-11-02 20:50:18,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 08:50:18" (3/3) ... [2022-11-02 20:50:18,808 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2022-11-02 20:50:18,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-02 20:50:18,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-02 20:50:18,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-02 20:50:18,955 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65119401, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-02 20:50:18,956 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-02 20:50:18,969 INFO L276 IsEmpty]: Start isEmpty. Operand has 2837 states, 1921 states have (on average 1.2613222280062468) internal successors, (2423), 1946 states have internal predecessors, (2423), 767 states have call successors, (767), 149 states have call predecessors, (767), 148 states have return successors, (761), 759 states have call predecessors, (761), 761 states have call successors, (761) [2022-11-02 20:50:19,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2022-11-02 20:50:19,031 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:19,032 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:19,033 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:19,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:19,040 INFO L85 PathProgramCache]: Analyzing trace with hash -24091557, now seen corresponding path program 1 times [2022-11-02 20:50:19,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:19,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025894174] [2022-11-02 20:50:19,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:19,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:19,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-02 20:50:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-02 20:50:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-02 20:50:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-11-02 20:50:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-11-02 20:50:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-11-02 20:50:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-11-02 20:50:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-11-02 20:50:20,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2022-11-02 20:50:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-11-02 20:50:20,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-02 20:50:20,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-11-02 20:50:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-11-02 20:50:20,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-02 20:50:20,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-11-02 20:50:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-11-02 20:50:20,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-02 20:50:20,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-02 20:50:20,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-02 20:50:20,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-11-02 20:50:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-02 20:50:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-02 20:50:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-11-02 20:50:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:20,572 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2022-11-02 20:50:20,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:20,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025894174] [2022-11-02 20:50:20,580 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025894174] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:20,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:20,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-02 20:50:20,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220161157] [2022-11-02 20:50:20,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:20,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-02 20:50:20,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:20,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-02 20:50:20,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-02 20:50:20,633 INFO L87 Difference]: Start difference. First operand has 2837 states, 1921 states have (on average 1.2613222280062468) internal successors, (2423), 1946 states have internal predecessors, (2423), 767 states have call successors, (767), 149 states have call predecessors, (767), 148 states have return successors, (761), 759 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-02 20:50:29,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:29,852 INFO L93 Difference]: Finished difference Result 7783 states and 10945 transitions. [2022-11-02 20:50:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-02 20:50:29,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 231 [2022-11-02 20:50:29,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:29,991 INFO L225 Difference]: With dead ends: 7783 [2022-11-02 20:50:29,992 INFO L226 Difference]: Without dead ends: 4893 [2022-11-02 20:50:30,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-02 20:50:30,020 INFO L413 NwaCegarLoop]: 4108 mSDtfsCounter, 3707 mSDsluCounter, 3877 mSDsCounter, 0 mSdLazyCounter, 3030 mSolverCounterSat, 1870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4243 SdHoareTripleChecker+Valid, 7985 SdHoareTripleChecker+Invalid, 4900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1870 IncrementalHoareTripleChecker+Valid, 3030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:30,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4243 Valid, 7985 Invalid, 4900 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1870 Valid, 3030 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-11-02 20:50:30,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2022-11-02 20:50:30,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4656. [2022-11-02 20:50:30,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2512626262626263) internal successors, (3964), 3211 states have internal predecessors, (3964), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6408 transitions. [2022-11-02 20:50:30,480 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6408 transitions. Word has length 231 [2022-11-02 20:50:30,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:30,484 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6408 transitions. [2022-11-02 20:50:30,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-11-02 20:50:30,485 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6408 transitions. [2022-11-02 20:50:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2022-11-02 20:50:30,496 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:30,497 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:30,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-02 20:50:30,497 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:30,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:30,498 INFO L85 PathProgramCache]: Analyzing trace with hash 757183165, now seen corresponding path program 1 times [2022-11-02 20:50:30,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:30,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437610322] [2022-11-02 20:50:30,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:30,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:30,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:30,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:30,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437610322] [2022-11-02 20:50:30,841 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:30,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848270878] [2022-11-02 20:50:30,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:30,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:30,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:30,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:30,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-02 20:50:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:32,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 3796 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:32,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:33,001 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:33,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:33,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848270878] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:33,002 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:33,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:33,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143311458] [2022-11-02 20:50:33,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:33,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:33,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:33,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:33,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:33,013 INFO L87 Difference]: Start difference. First operand 4656 states and 6408 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:33,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:33,506 INFO L93 Difference]: Finished difference Result 9279 states and 12781 transitions. [2022-11-02 20:50:33,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:33,507 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 239 [2022-11-02 20:50:33,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:33,553 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:33,554 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:33,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:33,584 INFO L413 NwaCegarLoop]: 3853 mSDtfsCounter, 3727 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3727 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:33,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3727 Valid, 3853 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:33,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:33,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2506313131313131) internal successors, (3962), 3211 states have internal predecessors, (3962), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:33,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6406 transitions. [2022-11-02 20:50:33,994 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6406 transitions. Word has length 239 [2022-11-02 20:50:33,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:33,997 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6406 transitions. [2022-11-02 20:50:33,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 2 states have internal predecessors, (87), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:33,998 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6406 transitions. [2022-11-02 20:50:34,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2022-11-02 20:50:34,010 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:34,010 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:34,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:34,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-11-02 20:50:34,226 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:34,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:34,227 INFO L85 PathProgramCache]: Analyzing trace with hash -1915416843, now seen corresponding path program 1 times [2022-11-02 20:50:34,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:34,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180506109] [2022-11-02 20:50:34,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:34,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:34,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:34,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180506109] [2022-11-02 20:50:34,587 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:34,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277893944] [2022-11-02 20:50:34,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:34,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:34,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:34,590 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:34,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-02 20:50:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:36,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 3797 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:36,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:36,913 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:36,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:36,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277893944] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:36,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:36,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:36,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653570133] [2022-11-02 20:50:36,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:36,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:36,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:36,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:36,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:36,917 INFO L87 Difference]: Start difference. First operand 4656 states and 6406 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:37,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:37,265 INFO L93 Difference]: Finished difference Result 9279 states and 12777 transitions. [2022-11-02 20:50:37,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:37,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 240 [2022-11-02 20:50:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:37,304 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:37,304 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:37,332 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:37,338 INFO L413 NwaCegarLoop]: 3852 mSDtfsCounter, 3725 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3725 SdHoareTripleChecker+Valid, 3852 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:37,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3725 Valid, 3852 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:37,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:37,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:37,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.25) internal successors, (3960), 3211 states have internal predecessors, (3960), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:37,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6404 transitions. [2022-11-02 20:50:37,692 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6404 transitions. Word has length 240 [2022-11-02 20:50:37,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:37,693 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6404 transitions. [2022-11-02 20:50:37,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6404 transitions. [2022-11-02 20:50:37,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-11-02 20:50:37,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:37,706 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:37,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:37,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:37,922 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:37,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:37,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1247845433, now seen corresponding path program 1 times [2022-11-02 20:50:37,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:37,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412219513] [2022-11-02 20:50:37,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:37,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:38,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:38,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:38,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412219513] [2022-11-02 20:50:38,216 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:38,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291156683] [2022-11-02 20:50:38,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:38,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:38,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:38,222 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:38,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-02 20:50:39,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:39,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 3798 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:39,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:40,483 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:40,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291156683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:40,483 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:40,484 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:40,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955529019] [2022-11-02 20:50:40,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:40,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:40,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:40,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:40,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:40,486 INFO L87 Difference]: Start difference. First operand 4656 states and 6404 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:40,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:40,865 INFO L93 Difference]: Finished difference Result 9279 states and 12773 transitions. [2022-11-02 20:50:40,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:40,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 241 [2022-11-02 20:50:40,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:40,895 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:40,896 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:40,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:40,922 INFO L413 NwaCegarLoop]: 3851 mSDtfsCounter, 3723 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3723 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:40,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3723 Valid, 3851 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:40,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:41,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:41,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2493686868686869) internal successors, (3958), 3211 states have internal predecessors, (3958), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:41,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6402 transitions. [2022-11-02 20:50:41,222 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6402 transitions. Word has length 241 [2022-11-02 20:50:41,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:41,223 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6402 transitions. [2022-11-02 20:50:41,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:41,223 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6402 transitions. [2022-11-02 20:50:41,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-11-02 20:50:41,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:41,231 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:41,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:41,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:41,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:41,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:41,449 INFO L85 PathProgramCache]: Analyzing trace with hash 639244785, now seen corresponding path program 1 times [2022-11-02 20:50:41,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:41,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133867067] [2022-11-02 20:50:41,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:41,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:41,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:41,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:41,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133867067] [2022-11-02 20:50:41,670 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:41,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137657589] [2022-11-02 20:50:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:41,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:41,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:41,674 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:41,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-02 20:50:43,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:43,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 3799 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:43,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:43,583 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:43,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:43,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137657589] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:43,584 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:43,584 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:43,584 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412937772] [2022-11-02 20:50:43,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:43,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:43,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:43,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:43,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:43,587 INFO L87 Difference]: Start difference. First operand 4656 states and 6402 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:43,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:43,967 INFO L93 Difference]: Finished difference Result 9279 states and 12769 transitions. [2022-11-02 20:50:43,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:43,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 242 [2022-11-02 20:50:43,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:43,999 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:44,000 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:44,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:44,022 INFO L413 NwaCegarLoop]: 3850 mSDtfsCounter, 3721 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3721 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:44,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3721 Valid, 3850 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:44,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:44,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2487373737373737) internal successors, (3956), 3211 states have internal predecessors, (3956), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6400 transitions. [2022-11-02 20:50:44,385 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6400 transitions. Word has length 242 [2022-11-02 20:50:44,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:44,388 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6400 transitions. [2022-11-02 20:50:44,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 2 states have internal predecessors, (90), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:44,388 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6400 transitions. [2022-11-02 20:50:44,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-11-02 20:50:44,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:44,398 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:44,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:44,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:44,618 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:44,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:44,618 INFO L85 PathProgramCache]: Analyzing trace with hash -932989515, now seen corresponding path program 1 times [2022-11-02 20:50:44,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:44,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904613345] [2022-11-02 20:50:44,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:44,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:44,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:44,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:44,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904613345] [2022-11-02 20:50:44,842 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:44,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723841964] [2022-11-02 20:50:44,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:44,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:44,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:44,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:44,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-02 20:50:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:46,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 3800 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:46,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:46,988 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:46,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723841964] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:46,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:46,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:46,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939793332] [2022-11-02 20:50:46,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:46,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:46,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:46,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:46,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:46,992 INFO L87 Difference]: Start difference. First operand 4656 states and 6400 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:47,437 INFO L93 Difference]: Finished difference Result 9279 states and 12765 transitions. [2022-11-02 20:50:47,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:47,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 243 [2022-11-02 20:50:47,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:47,494 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:47,494 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:47,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:47,519 INFO L413 NwaCegarLoop]: 3849 mSDtfsCounter, 3719 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3719 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:47,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3719 Valid, 3849 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:47,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:47,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:47,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2481060606060606) internal successors, (3954), 3211 states have internal predecessors, (3954), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:47,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6398 transitions. [2022-11-02 20:50:47,946 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6398 transitions. Word has length 243 [2022-11-02 20:50:47,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:47,947 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6398 transitions. [2022-11-02 20:50:47,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:47,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6398 transitions. [2022-11-02 20:50:47,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2022-11-02 20:50:47,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:47,957 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:48,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:48,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:48,178 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:48,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:48,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1981871341, now seen corresponding path program 1 times [2022-11-02 20:50:48,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:48,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480702077] [2022-11-02 20:50:48,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:48,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:48,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:48,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:48,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480702077] [2022-11-02 20:50:48,415 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:48,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1491046516] [2022-11-02 20:50:48,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:48,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:48,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:48,417 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:48,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-02 20:50:49,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:49,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 3801 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:50,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:50,542 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:50,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1491046516] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:50,543 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:50,543 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:50,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485290070] [2022-11-02 20:50:50,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:50,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:50,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:50,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:50,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:50,545 INFO L87 Difference]: Start difference. First operand 4656 states and 6398 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:50,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:50,990 INFO L93 Difference]: Finished difference Result 9279 states and 12761 transitions. [2022-11-02 20:50:50,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:50,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 244 [2022-11-02 20:50:50,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:51,016 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:51,017 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:51,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:51,032 INFO L413 NwaCegarLoop]: 3848 mSDtfsCounter, 3717 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3717 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:51,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3717 Valid, 3848 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:51,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:51,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:51,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2474747474747474) internal successors, (3952), 3211 states have internal predecessors, (3952), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:51,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6396 transitions. [2022-11-02 20:50:51,398 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6396 transitions. Word has length 244 [2022-11-02 20:50:51,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:51,399 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6396 transitions. [2022-11-02 20:50:51,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6396 transitions. [2022-11-02 20:50:51,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2022-11-02 20:50:51,409 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:51,409 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:51,458 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:51,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:51,634 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:51,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:51,634 INFO L85 PathProgramCache]: Analyzing trace with hash -2032206031, now seen corresponding path program 1 times [2022-11-02 20:50:51,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:51,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976846619] [2022-11-02 20:50:51,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:51,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:51,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:51,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976846619] [2022-11-02 20:50:51,842 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:51,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555712683] [2022-11-02 20:50:51,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:51,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:51,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:51,844 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:51,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-02 20:50:53,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:53,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 3802 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:53,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:53,769 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:53,769 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:53,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555712683] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:53,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:53,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:53,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497685447] [2022-11-02 20:50:53,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:53,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:53,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:53,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:53,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:53,772 INFO L87 Difference]: Start difference. First operand 4656 states and 6396 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:54,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:54,077 INFO L93 Difference]: Finished difference Result 9279 states and 12757 transitions. [2022-11-02 20:50:54,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:54,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 245 [2022-11-02 20:50:54,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:54,179 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:54,179 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:54,193 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 244 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:54,194 INFO L413 NwaCegarLoop]: 3847 mSDtfsCounter, 3715 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3715 SdHoareTripleChecker+Valid, 3847 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:54,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3715 Valid, 3847 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:54,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:54,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:54,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2468434343434343) internal successors, (3950), 3211 states have internal predecessors, (3950), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6394 transitions. [2022-11-02 20:50:54,527 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6394 transitions. Word has length 245 [2022-11-02 20:50:54,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:54,529 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6394 transitions. [2022-11-02 20:50:54,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 2 states have internal predecessors, (93), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:54,529 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6394 transitions. [2022-11-02 20:50:54,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-02 20:50:54,538 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:54,538 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:54,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:54,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-02 20:50:54,754 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:54,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:54,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1800036375, now seen corresponding path program 1 times [2022-11-02 20:50:54,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:54,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736123389] [2022-11-02 20:50:54,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:54,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:54,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:54,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736123389] [2022-11-02 20:50:54,944 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:54,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666271285] [2022-11-02 20:50:54,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:54,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:54,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:54,946 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:54,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-02 20:50:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:56,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 3803 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:56,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:50:56,881 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:50:56,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:50:56,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666271285] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:50:56,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:50:56,882 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:50:56,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715955958] [2022-11-02 20:50:56,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:50:56,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:50:56,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:50:56,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:50:56,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:56,884 INFO L87 Difference]: Start difference. First operand 4656 states and 6394 transitions. Second operand has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:57,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:50:57,288 INFO L93 Difference]: Finished difference Result 9279 states and 12753 transitions. [2022-11-02 20:50:57,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:50:57,288 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 246 [2022-11-02 20:50:57,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:50:57,305 INFO L225 Difference]: With dead ends: 9279 [2022-11-02 20:50:57,306 INFO L226 Difference]: Without dead ends: 4656 [2022-11-02 20:50:57,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:50:57,319 INFO L413 NwaCegarLoop]: 3846 mSDtfsCounter, 3713 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3713 SdHoareTripleChecker+Valid, 3846 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:50:57,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3713 Valid, 3846 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:50:57,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4656 states. [2022-11-02 20:50:57,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4656 to 4656. [2022-11-02 20:50:57,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.246212121212121) internal successors, (3948), 3211 states have internal predecessors, (3948), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2022-11-02 20:50:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6392 transitions. [2022-11-02 20:50:57,664 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6392 transitions. Word has length 246 [2022-11-02 20:50:57,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:50:57,665 INFO L495 AbstractCegarLoop]: Abstraction has 4656 states and 6392 transitions. [2022-11-02 20:50:57,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.333333333333332) internal successors, (94), 2 states have internal predecessors, (94), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:50:57,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6392 transitions. [2022-11-02 20:50:57,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-02 20:50:57,674 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:50:57,674 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:50:57,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-02 20:50:57,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-02 20:50:57,902 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:50:57,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:50:57,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1216772269, now seen corresponding path program 1 times [2022-11-02 20:50:57,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:50:57,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044573202] [2022-11-02 20:50:57,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:57,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:50:58,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:58,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:50:58,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044573202] [2022-11-02 20:50:58,099 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:50:58,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1519501730] [2022-11-02 20:50:58,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:50:58,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:50:58,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:50:58,101 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:50:58,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-02 20:50:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:50:59,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 3804 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:50:59,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:00,022 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:00,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:00,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1519501730] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:00,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:00,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:00,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371845371] [2022-11-02 20:51:00,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:00,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:00,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:00,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:00,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:00,025 INFO L87 Difference]: Start difference. First operand 4656 states and 6392 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:00,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:00,514 INFO L93 Difference]: Finished difference Result 9386 states and 12875 transitions. [2022-11-02 20:51:00,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:00,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 247 [2022-11-02 20:51:00,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:00,548 INFO L225 Difference]: With dead ends: 9386 [2022-11-02 20:51:00,548 INFO L226 Difference]: Without dead ends: 4763 [2022-11-02 20:51:00,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:00,566 INFO L413 NwaCegarLoop]: 3898 mSDtfsCounter, 3639 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3639 SdHoareTripleChecker+Valid, 4032 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:00,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3639 Valid, 4032 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-02 20:51:01,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2022-11-02 20:51:01,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3240 states have (on average 1.245679012345679) internal successors, (4036), 3283 states have internal predecessors, (4036), 1240 states have call successors, (1240), 283 states have call predecessors, (1240), 282 states have return successors, (1240), 1233 states have call predecessors, (1240), 1240 states have call successors, (1240) [2022-11-02 20:51:01,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6516 transitions. [2022-11-02 20:51:01,075 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6516 transitions. Word has length 247 [2022-11-02 20:51:01,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:01,076 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6516 transitions. [2022-11-02 20:51:01,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 2 states have internal predecessors, (95), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:01,077 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6516 transitions. [2022-11-02 20:51:01,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2022-11-02 20:51:01,083 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:01,083 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:01,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:01,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-02 20:51:01,310 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:01,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:01,310 INFO L85 PathProgramCache]: Analyzing trace with hash 363076325, now seen corresponding path program 1 times [2022-11-02 20:51:01,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:01,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494173974] [2022-11-02 20:51:01,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:01,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:01,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:01,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494173974] [2022-11-02 20:51:01,529 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:01,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241820566] [2022-11-02 20:51:01,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:01,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:01,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:01,531 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:01,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-02 20:51:02,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:02,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 3805 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:02,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:03,503 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:03,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1241820566] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:03,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:03,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:03,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268317085] [2022-11-02 20:51:03,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:03,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:03,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:03,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:03,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:03,507 INFO L87 Difference]: Start difference. First operand 4763 states and 6516 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:03,836 INFO L93 Difference]: Finished difference Result 9493 states and 12997 transitions. [2022-11-02 20:51:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:03,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 248 [2022-11-02 20:51:03,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:03,855 INFO L225 Difference]: With dead ends: 9493 [2022-11-02 20:51:03,856 INFO L226 Difference]: Without dead ends: 4763 [2022-11-02 20:51:03,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:03,871 INFO L413 NwaCegarLoop]: 3844 mSDtfsCounter, 3709 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3709 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:03,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3709 Valid, 3844 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:03,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-02 20:51:04,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2022-11-02 20:51:04,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3240 states have (on average 1.2450617283950618) internal successors, (4034), 3283 states have internal predecessors, (4034), 1240 states have call successors, (1240), 283 states have call predecessors, (1240), 282 states have return successors, (1240), 1233 states have call predecessors, (1240), 1240 states have call successors, (1240) [2022-11-02 20:51:04,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6514 transitions. [2022-11-02 20:51:04,274 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6514 transitions. Word has length 248 [2022-11-02 20:51:04,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:04,275 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6514 transitions. [2022-11-02 20:51:04,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6514 transitions. [2022-11-02 20:51:04,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2022-11-02 20:51:04,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:04,283 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:04,331 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:04,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-02 20:51:04,503 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:04,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:04,503 INFO L85 PathProgramCache]: Analyzing trace with hash -217177559, now seen corresponding path program 1 times [2022-11-02 20:51:04,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:04,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347023641] [2022-11-02 20:51:04,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:04,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:04,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:04,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347023641] [2022-11-02 20:51:04,739 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:04,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055191144] [2022-11-02 20:51:04,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:04,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:04,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:04,741 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:04,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-02 20:51:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:06,368 INFO L263 TraceCheckSpWp]: Trace formula consists of 3806 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:06,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:06,951 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:06,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:06,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055191144] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:06,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:06,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:06,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874075278] [2022-11-02 20:51:06,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:06,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:06,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:06,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:06,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:06,954 INFO L87 Difference]: Start difference. First operand 4763 states and 6514 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:07,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:07,321 INFO L93 Difference]: Finished difference Result 9493 states and 12993 transitions. [2022-11-02 20:51:07,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:07,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 249 [2022-11-02 20:51:07,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:07,340 INFO L225 Difference]: With dead ends: 9493 [2022-11-02 20:51:07,340 INFO L226 Difference]: Without dead ends: 4763 [2022-11-02 20:51:07,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:07,353 INFO L413 NwaCegarLoop]: 3843 mSDtfsCounter, 3707 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3707 SdHoareTripleChecker+Valid, 3843 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:07,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3707 Valid, 3843 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:07,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-02 20:51:07,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2022-11-02 20:51:07,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3240 states have (on average 1.2444444444444445) internal successors, (4032), 3283 states have internal predecessors, (4032), 1240 states have call successors, (1240), 283 states have call predecessors, (1240), 282 states have return successors, (1240), 1233 states have call predecessors, (1240), 1240 states have call successors, (1240) [2022-11-02 20:51:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6512 transitions. [2022-11-02 20:51:07,740 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6512 transitions. Word has length 249 [2022-11-02 20:51:07,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:07,741 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6512 transitions. [2022-11-02 20:51:07,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 2 states have internal predecessors, (97), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:07,741 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6512 transitions. [2022-11-02 20:51:07,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-11-02 20:51:07,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:07,748 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:07,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:07,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:07,962 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:07,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:07,963 INFO L85 PathProgramCache]: Analyzing trace with hash -910662175, now seen corresponding path program 1 times [2022-11-02 20:51:07,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:07,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860440641] [2022-11-02 20:51:07,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:07,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:08,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:08,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860440641] [2022-11-02 20:51:08,149 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:08,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [672988783] [2022-11-02 20:51:08,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:08,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:08,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:08,151 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:08,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-02 20:51:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:09,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 3807 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:09,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:10,151 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:10,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:10,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [672988783] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:10,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:10,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:10,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415322988] [2022-11-02 20:51:10,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:10,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:10,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:10,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:10,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:10,154 INFO L87 Difference]: Start difference. First operand 4763 states and 6512 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:10,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:10,521 INFO L93 Difference]: Finished difference Result 9493 states and 12989 transitions. [2022-11-02 20:51:10,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 250 [2022-11-02 20:51:10,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:10,546 INFO L225 Difference]: With dead ends: 9493 [2022-11-02 20:51:10,546 INFO L226 Difference]: Without dead ends: 4763 [2022-11-02 20:51:10,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:10,562 INFO L413 NwaCegarLoop]: 3842 mSDtfsCounter, 3705 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3705 SdHoareTripleChecker+Valid, 3842 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:10,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3705 Valid, 3842 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:10,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-02 20:51:10,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2022-11-02 20:51:10,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3240 states have (on average 1.2438271604938271) internal successors, (4030), 3283 states have internal predecessors, (4030), 1240 states have call successors, (1240), 283 states have call predecessors, (1240), 282 states have return successors, (1240), 1233 states have call predecessors, (1240), 1240 states have call successors, (1240) [2022-11-02 20:51:10,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6510 transitions. [2022-11-02 20:51:10,996 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6510 transitions. Word has length 250 [2022-11-02 20:51:10,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:10,997 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6510 transitions. [2022-11-02 20:51:10,997 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 2 states have internal predecessors, (98), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:10,997 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6510 transitions. [2022-11-02 20:51:11,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2022-11-02 20:51:11,004 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:11,004 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:11,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:11,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:11,230 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:11,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:11,230 INFO L85 PathProgramCache]: Analyzing trace with hash -819332187, now seen corresponding path program 1 times [2022-11-02 20:51:11,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:11,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095578812] [2022-11-02 20:51:11,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:11,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:11,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:11,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095578812] [2022-11-02 20:51:11,391 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:11,391 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964253064] [2022-11-02 20:51:11,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:11,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:11,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:11,394 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:11,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-02 20:51:12,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:12,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 3808 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:12,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:13,355 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:13,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:13,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964253064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:13,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:13,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:13,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550432631] [2022-11-02 20:51:13,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:13,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:13,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:13,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:13,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:13,357 INFO L87 Difference]: Start difference. First operand 4763 states and 6510 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:13,780 INFO L93 Difference]: Finished difference Result 9493 states and 12985 transitions. [2022-11-02 20:51:13,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:13,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 251 [2022-11-02 20:51:13,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:13,803 INFO L225 Difference]: With dead ends: 9493 [2022-11-02 20:51:13,804 INFO L226 Difference]: Without dead ends: 4763 [2022-11-02 20:51:13,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:13,823 INFO L413 NwaCegarLoop]: 3841 mSDtfsCounter, 3703 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3703 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:13,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3703 Valid, 3841 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:13,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-02 20:51:14,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2022-11-02 20:51:14,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3240 states have (on average 1.2432098765432098) internal successors, (4028), 3283 states have internal predecessors, (4028), 1240 states have call successors, (1240), 283 states have call predecessors, (1240), 282 states have return successors, (1240), 1233 states have call predecessors, (1240), 1240 states have call successors, (1240) [2022-11-02 20:51:14,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6508 transitions. [2022-11-02 20:51:14,380 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6508 transitions. Word has length 251 [2022-11-02 20:51:14,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:14,381 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6508 transitions. [2022-11-02 20:51:14,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:14,382 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6508 transitions. [2022-11-02 20:51:14,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2022-11-02 20:51:14,389 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:14,389 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:14,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:14,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-02 20:51:14,602 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:14,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:14,603 INFO L85 PathProgramCache]: Analyzing trace with hash 2126414045, now seen corresponding path program 1 times [2022-11-02 20:51:14,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:14,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591558845] [2022-11-02 20:51:14,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:14,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:14,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:14,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591558845] [2022-11-02 20:51:14,773 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:14,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299253346] [2022-11-02 20:51:14,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:14,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:14,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:14,775 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:14,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-02 20:51:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:16,236 INFO L263 TraceCheckSpWp]: Trace formula consists of 3809 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:16,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:16,813 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:16,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:16,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299253346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:16,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:16,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:16,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551068456] [2022-11-02 20:51:16,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:16,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:16,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:16,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:16,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:16,815 INFO L87 Difference]: Start difference. First operand 4763 states and 6508 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:17,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:17,217 INFO L93 Difference]: Finished difference Result 9493 states and 12981 transitions. [2022-11-02 20:51:17,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 252 [2022-11-02 20:51:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:17,233 INFO L225 Difference]: With dead ends: 9493 [2022-11-02 20:51:17,233 INFO L226 Difference]: Without dead ends: 4763 [2022-11-02 20:51:17,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:17,248 INFO L413 NwaCegarLoop]: 3840 mSDtfsCounter, 3701 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3701 SdHoareTripleChecker+Valid, 3840 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:17,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3701 Valid, 3840 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:17,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-02 20:51:17,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2022-11-02 20:51:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3240 states have (on average 1.2425925925925927) internal successors, (4026), 3283 states have internal predecessors, (4026), 1240 states have call successors, (1240), 283 states have call predecessors, (1240), 282 states have return successors, (1240), 1233 states have call predecessors, (1240), 1240 states have call successors, (1240) [2022-11-02 20:51:17,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6506 transitions. [2022-11-02 20:51:17,709 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6506 transitions. Word has length 252 [2022-11-02 20:51:17,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:17,709 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6506 transitions. [2022-11-02 20:51:17,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 2 states have internal predecessors, (100), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:17,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6506 transitions. [2022-11-02 20:51:17,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2022-11-02 20:51:17,716 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:17,717 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:17,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:17,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-02 20:51:17,930 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:17,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:17,930 INFO L85 PathProgramCache]: Analyzing trace with hash -930216671, now seen corresponding path program 1 times [2022-11-02 20:51:17,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:17,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607566471] [2022-11-02 20:51:17,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:17,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:18,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:18,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607566471] [2022-11-02 20:51:18,095 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:18,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705629517] [2022-11-02 20:51:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:18,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:18,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:18,096 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:18,129 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-11-02 20:51:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:19,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 3810 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:19,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:20,234 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:20,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:20,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705629517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:20,234 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:20,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:20,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696745257] [2022-11-02 20:51:20,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:20,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:20,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:20,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:20,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:20,236 INFO L87 Difference]: Start difference. First operand 4763 states and 6506 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:20,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:20,600 INFO L93 Difference]: Finished difference Result 9493 states and 12977 transitions. [2022-11-02 20:51:20,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:20,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 253 [2022-11-02 20:51:20,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:20,620 INFO L225 Difference]: With dead ends: 9493 [2022-11-02 20:51:20,620 INFO L226 Difference]: Without dead ends: 4763 [2022-11-02 20:51:20,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:20,635 INFO L413 NwaCegarLoop]: 3839 mSDtfsCounter, 3699 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3699 SdHoareTripleChecker+Valid, 3839 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:20,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3699 Valid, 3839 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:20,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4763 states. [2022-11-02 20:51:21,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4763 to 4763. [2022-11-02 20:51:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4763 states, 3240 states have (on average 1.2419753086419754) internal successors, (4024), 3283 states have internal predecessors, (4024), 1240 states have call successors, (1240), 283 states have call predecessors, (1240), 282 states have return successors, (1240), 1233 states have call predecessors, (1240), 1240 states have call successors, (1240) [2022-11-02 20:51:21,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4763 states to 4763 states and 6504 transitions. [2022-11-02 20:51:21,120 INFO L78 Accepts]: Start accepts. Automaton has 4763 states and 6504 transitions. Word has length 253 [2022-11-02 20:51:21,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:21,121 INFO L495 AbstractCegarLoop]: Abstraction has 4763 states and 6504 transitions. [2022-11-02 20:51:21,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:21,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4763 states and 6504 transitions. [2022-11-02 20:51:21,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-02 20:51:21,129 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:21,129 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:21,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:21,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-02 20:51:21,344 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:21,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:21,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1081971751, now seen corresponding path program 1 times [2022-11-02 20:51:21,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:21,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254495035] [2022-11-02 20:51:21,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:21,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:21,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:21,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:21,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254495035] [2022-11-02 20:51:21,498 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:21,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469150129] [2022-11-02 20:51:21,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:21,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:21,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:21,502 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:21,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-11-02 20:51:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:23,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 3811 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:23,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:23,535 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2022-11-02 20:51:23,535 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:23,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469150129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:23,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:23,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-02 20:51:23,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726535061] [2022-11-02 20:51:23,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:23,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:23,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:23,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:23,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:23,537 INFO L87 Difference]: Start difference. First operand 4763 states and 6504 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:24,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:24,235 INFO L93 Difference]: Finished difference Result 14215 states and 19421 transitions. [2022-11-02 20:51:24,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:24,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) Word has length 254 [2022-11-02 20:51:24,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:24,265 INFO L225 Difference]: With dead ends: 14215 [2022-11-02 20:51:24,265 INFO L226 Difference]: Without dead ends: 9485 [2022-11-02 20:51:24,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:24,278 INFO L413 NwaCegarLoop]: 4845 mSDtfsCounter, 3698 mSDsluCounter, 3777 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3698 SdHoareTripleChecker+Valid, 8622 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:24,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3698 Valid, 8622 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-02 20:51:24,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9485 states. [2022-11-02 20:51:25,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9485 to 9482. [2022-11-02 20:51:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9482 states, 6454 states have (on average 1.2426402231174465) internal successors, (8020), 6543 states have internal predecessors, (8020), 2464 states have call successors, (2464), 566 states have call predecessors, (2464), 563 states have return successors, (2464), 2446 states have call predecessors, (2464), 2464 states have call successors, (2464) [2022-11-02 20:51:25,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9482 states to 9482 states and 12948 transitions. [2022-11-02 20:51:25,436 INFO L78 Accepts]: Start accepts. Automaton has 9482 states and 12948 transitions. Word has length 254 [2022-11-02 20:51:25,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:25,436 INFO L495 AbstractCegarLoop]: Abstraction has 9482 states and 12948 transitions. [2022-11-02 20:51:25,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 2 states have internal predecessors, (102), 1 states have call successors, (24), 1 states have call predecessors, (24), 2 states have return successors, (22), 2 states have call predecessors, (22), 1 states have call successors, (22) [2022-11-02 20:51:25,437 INFO L276 IsEmpty]: Start isEmpty. Operand 9482 states and 12948 transitions. [2022-11-02 20:51:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-11-02 20:51:25,447 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:25,448 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:25,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:25,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-02 20:51:25,662 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:25,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:25,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1053342600, now seen corresponding path program 1 times [2022-11-02 20:51:25,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:25,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138732222] [2022-11-02 20:51:25,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:25,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:25,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:25,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138732222] [2022-11-02 20:51:25,870 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:25,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780475498] [2022-11-02 20:51:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:25,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:25,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:25,872 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:25,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-11-02 20:51:27,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:27,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 3810 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:27,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-11-02 20:51:27,287 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:27,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780475498] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:27,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:27,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:27,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095583601] [2022-11-02 20:51:27,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:27,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:27,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:27,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:27,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:27,290 INFO L87 Difference]: Start difference. First operand 9482 states and 12948 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-02 20:51:29,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:29,032 INFO L93 Difference]: Finished difference Result 24746 states and 33709 transitions. [2022-11-02 20:51:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:29,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 254 [2022-11-02 20:51:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:29,095 INFO L225 Difference]: With dead ends: 24746 [2022-11-02 20:51:29,095 INFO L226 Difference]: Without dead ends: 15297 [2022-11-02 20:51:29,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 252 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:29,127 INFO L413 NwaCegarLoop]: 5356 mSDtfsCounter, 2675 mSDsluCounter, 3733 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2675 SdHoareTripleChecker+Valid, 9089 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:29,127 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2675 Valid, 9089 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:51:29,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15297 states. [2022-11-02 20:51:30,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15297 to 15291. [2022-11-02 20:51:30,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15291 states, 10466 states have (on average 1.2416395948786547) internal successors, (12995), 10594 states have internal predecessors, (12995), 3874 states have call successors, (3874), 954 states have call predecessors, (3874), 950 states have return successors, (3874), 3846 states have call predecessors, (3874), 3874 states have call successors, (3874) [2022-11-02 20:51:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15291 states to 15291 states and 20743 transitions. [2022-11-02 20:51:30,347 INFO L78 Accepts]: Start accepts. Automaton has 15291 states and 20743 transitions. Word has length 254 [2022-11-02 20:51:30,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:30,348 INFO L495 AbstractCegarLoop]: Abstraction has 15291 states and 20743 transitions. [2022-11-02 20:51:30,348 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 3 states have call successors, (24), 3 states have call predecessors, (24), 3 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2022-11-02 20:51:30,348 INFO L276 IsEmpty]: Start isEmpty. Operand 15291 states and 20743 transitions. [2022-11-02 20:51:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2022-11-02 20:51:30,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:30,359 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 14, 14, 14, 14, 14, 14, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:30,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:30,567 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-02 20:51:30,568 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:30,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:30,568 INFO L85 PathProgramCache]: Analyzing trace with hash 1097831141, now seen corresponding path program 1 times [2022-11-02 20:51:30,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:30,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495370011] [2022-11-02 20:51:30,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:30,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:30,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:30,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:30,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495370011] [2022-11-02 20:51:30,729 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-02 20:51:30,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019768876] [2022-11-02 20:51:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:30,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:30,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:30,731 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:30,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-11-02 20:51:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:32,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 4004 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:32,111 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:32,182 INFO L134 CoverageAnalysis]: Checked inductivity of 922 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 822 trivial. 0 not checked. [2022-11-02 20:51:32,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:32,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019768876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:32,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:32,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:32,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164676245] [2022-11-02 20:51:32,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:32,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:32,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:32,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:32,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:32,186 INFO L87 Difference]: Start difference. First operand 15291 states and 20743 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-02 20:51:33,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:33,945 INFO L93 Difference]: Finished difference Result 36388 states and 49307 transitions. [2022-11-02 20:51:33,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:33,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 306 [2022-11-02 20:51:33,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:34,015 INFO L225 Difference]: With dead ends: 36388 [2022-11-02 20:51:34,015 INFO L226 Difference]: Without dead ends: 21130 [2022-11-02 20:51:34,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:34,050 INFO L413 NwaCegarLoop]: 4690 mSDtfsCounter, 3740 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3740 SdHoareTripleChecker+Valid, 7359 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:34,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3740 Valid, 7359 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:51:34,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21130 states. [2022-11-02 20:51:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21130 to 21124. [2022-11-02 20:51:35,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21124 states, 14486 states have (on average 1.243545492199365) internal successors, (18014), 14653 states have internal predecessors, (18014), 5288 states have call successors, (5288), 1354 states have call predecessors, (5288), 1349 states have return successors, (5288), 5250 states have call predecessors, (5288), 5288 states have call successors, (5288) [2022-11-02 20:51:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21124 states to 21124 states and 28590 transitions. [2022-11-02 20:51:36,044 INFO L78 Accepts]: Start accepts. Automaton has 21124 states and 28590 transitions. Word has length 306 [2022-11-02 20:51:36,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:36,045 INFO L495 AbstractCegarLoop]: Abstraction has 21124 states and 28590 transitions. [2022-11-02 20:51:36,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 3 states have call successors, (28), 3 states have call predecessors, (28), 3 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-02 20:51:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand 21124 states and 28590 transitions. [2022-11-02 20:51:36,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-02 20:51:36,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:36,057 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:36,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:36,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:36,282 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:36,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:36,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2005915668, now seen corresponding path program 1 times [2022-11-02 20:51:36,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:36,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791330517] [2022-11-02 20:51:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:36,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:36,493 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:51:36,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [784073464] [2022-11-02 20:51:36,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:36,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:36,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:36,498 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:36,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-11-02 20:51:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:37,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 4077 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:37,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:37,990 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 921 trivial. 0 not checked. [2022-11-02 20:51:37,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:37,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:37,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791330517] [2022-11-02 20:51:37,991 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:51:37,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784073464] [2022-11-02 20:51:37,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784073464] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:37,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:37,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:37,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254183095] [2022-11-02 20:51:37,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:37,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:37,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:37,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:37,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:37,993 INFO L87 Difference]: Start difference. First operand 21124 states and 28590 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-02 20:51:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:40,004 INFO L93 Difference]: Finished difference Result 47188 states and 63839 transitions. [2022-11-02 20:51:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 318 [2022-11-02 20:51:40,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:40,086 INFO L225 Difference]: With dead ends: 47188 [2022-11-02 20:51:40,086 INFO L226 Difference]: Without dead ends: 26097 [2022-11-02 20:51:40,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 316 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:40,129 INFO L413 NwaCegarLoop]: 5331 mSDtfsCounter, 2662 mSDsluCounter, 3722 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2662 SdHoareTripleChecker+Valid, 9053 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:40,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2662 Valid, 9053 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:51:40,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26097 states. [2022-11-02 20:51:42,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26097 to 26091. [2022-11-02 20:51:42,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26091 states, 17924 states have (on average 1.2425239901807632) internal successors, (22271), 18130 states have internal predecessors, (22271), 6482 states have call successors, (6482), 1690 states have call predecessors, (6482), 1684 states have return successors, (6482), 6434 states have call predecessors, (6482), 6482 states have call successors, (6482) [2022-11-02 20:51:42,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26091 states to 26091 states and 35235 transitions. [2022-11-02 20:51:42,950 INFO L78 Accepts]: Start accepts. Automaton has 26091 states and 35235 transitions. Word has length 318 [2022-11-02 20:51:42,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:42,951 INFO L495 AbstractCegarLoop]: Abstraction has 26091 states and 35235 transitions. [2022-11-02 20:51:42,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (32), 3 states have call predecessors, (32), 3 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2022-11-02 20:51:42,951 INFO L276 IsEmpty]: Start isEmpty. Operand 26091 states and 35235 transitions. [2022-11-02 20:51:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2022-11-02 20:51:42,965 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:42,965 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 14, 14, 14, 14, 14, 14, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:43,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-11-02 20:51:43,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:43,194 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:43,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:43,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1292174785, now seen corresponding path program 1 times [2022-11-02 20:51:43,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:43,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116873470] [2022-11-02 20:51:43,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:43,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:43,320 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:51:43,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1421366875] [2022-11-02 20:51:43,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:43,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:43,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:43,322 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:43,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-11-02 20:51:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:44,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 4298 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:44,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:44,806 INFO L134 CoverageAnalysis]: Checked inductivity of 1258 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 1185 trivial. 0 not checked. [2022-11-02 20:51:44,806 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:44,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:44,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116873470] [2022-11-02 20:51:44,807 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:51:44,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1421366875] [2022-11-02 20:51:44,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1421366875] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:44,807 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:44,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:44,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516726213] [2022-11-02 20:51:44,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:44,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:44,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:44,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:44,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:44,809 INFO L87 Difference]: Start difference. First operand 26091 states and 35235 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-02 20:51:48,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:48,137 INFO L93 Difference]: Finished difference Result 58896 states and 79498 transitions. [2022-11-02 20:51:48,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:48,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 392 [2022-11-02 20:51:48,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:48,268 INFO L225 Difference]: With dead ends: 58896 [2022-11-02 20:51:48,269 INFO L226 Difference]: Without dead ends: 32838 [2022-11-02 20:51:48,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:48,324 INFO L413 NwaCegarLoop]: 4764 mSDtfsCounter, 3319 mSDsluCounter, 3358 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3319 SdHoareTripleChecker+Valid, 8122 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:48,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3319 Valid, 8122 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-02 20:51:48,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32838 states. [2022-11-02 20:51:50,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32838 to 32832. [2022-11-02 20:51:50,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32832 states, 22634 states have (on average 1.2425996288769108) internal successors, (28125), 22887 states have internal predecessors, (28125), 8070 states have call successors, (8070), 2134 states have call predecessors, (8070), 2127 states have return successors, (8070), 8012 states have call predecessors, (8070), 8070 states have call successors, (8070) [2022-11-02 20:51:51,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32832 states to 32832 states and 44265 transitions. [2022-11-02 20:51:51,071 INFO L78 Accepts]: Start accepts. Automaton has 32832 states and 44265 transitions. Word has length 392 [2022-11-02 20:51:51,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-02 20:51:51,072 INFO L495 AbstractCegarLoop]: Abstraction has 32832 states and 44265 transitions. [2022-11-02 20:51:51,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-02 20:51:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 32832 states and 44265 transitions. [2022-11-02 20:51:51,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2022-11-02 20:51:51,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-02 20:51:51,093 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 14, 14, 14, 14, 14, 14, 9, 9, 9, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-02 20:51:51,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2022-11-02 20:51:51,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:51,294 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-02 20:51:51,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-02 20:51:51,295 INFO L85 PathProgramCache]: Analyzing trace with hash -203877475, now seen corresponding path program 1 times [2022-11-02 20:51:51,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-02 20:51:51,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144001352] [2022-11-02 20:51:51,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:51,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-02 20:51:51,469 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-02 20:51:51,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1078463749] [2022-11-02 20:51:51,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-02 20:51:51,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-02 20:51:51,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 [2022-11-02 20:51:51,474 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-02 20:51:51,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fbe437b0-0930-447e-bffd-05f6c9123806/bin/uautomizer-Dbtcem3rbc/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-11-02 20:51:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-02 20:51:53,120 INFO L263 TraceCheckSpWp]: Trace formula consists of 4382 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-02 20:51:53,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-02 20:51:53,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1450 backedges. 262 proven. 0 refuted. 0 times theorem prover too weak. 1188 trivial. 0 not checked. [2022-11-02 20:51:53,208 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-02 20:51:53,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-02 20:51:53,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144001352] [2022-11-02 20:51:53,209 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-02 20:51:53,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078463749] [2022-11-02 20:51:53,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078463749] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-02 20:51:53,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-02 20:51:53,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-02 20:51:53,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686939270] [2022-11-02 20:51:53,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-02 20:51:53,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-02 20:51:53,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-02 20:51:53,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-02 20:51:53,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:53,213 INFO L87 Difference]: Start difference. First operand 32832 states and 44265 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2022-11-02 20:51:57,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-02 20:51:57,117 INFO L93 Difference]: Finished difference Result 70588 states and 95129 transitions. [2022-11-02 20:51:57,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-02 20:51:57,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 3 states have call successors, (42), 3 states have call predecessors, (42), 3 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 433 [2022-11-02 20:51:57,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-02 20:51:57,239 INFO L225 Difference]: With dead ends: 70588 [2022-11-02 20:51:57,240 INFO L226 Difference]: Without dead ends: 37789 [2022-11-02 20:51:57,308 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-02 20:51:57,309 INFO L413 NwaCegarLoop]: 6301 mSDtfsCounter, 3358 mSDsluCounter, 3307 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3358 SdHoareTripleChecker+Valid, 9608 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-02 20:51:57,309 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3358 Valid, 9608 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-02 20:51:57,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37789 states.