./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 04:42:10,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 04:42:10,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 04:42:10,102 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 04:42:10,103 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 04:42:10,130 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 04:42:10,131 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 04:42:10,132 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 04:42:10,132 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 04:42:10,133 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 04:42:10,134 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 04:42:10,134 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 04:42:10,135 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 04:42:10,136 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 04:42:10,136 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 04:42:10,137 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 04:42:10,137 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 04:42:10,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 04:42:10,139 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 04:42:10,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 04:42:10,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 04:42:10,143 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 04:42:10,143 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 04:42:10,144 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 04:42:10,145 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 04:42:10,145 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 04:42:10,146 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 04:42:10,146 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 04:42:10,146 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 04:42:10,147 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 04:42:10,147 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 04:42:10,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:42:10,148 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 04:42:10,148 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 04:42:10,148 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 04:42:10,149 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 04:42:10,149 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 04:42:10,149 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 04:42:10,149 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 04:42:10,149 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 04:42:10,150 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 04:42:10,150 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 04:42:10,150 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 646f5b113c7a3ad2f4a2522272ad1b8889776081b2b5bc43fffe0e887ddc48f7 [2023-11-29 04:42:10,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 04:42:10,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 04:42:10,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 04:42:10,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 04:42:10,411 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 04:42:10,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2023-11-29 04:42:13,629 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 04:42:13,899 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 04:42:13,899 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c [2023-11-29 04:42:13,923 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/data/db4057a04/baab630f86354433afce80b047c2f3ba/FLAGb1b180d34 [2023-11-29 04:42:13,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/data/db4057a04/baab630f86354433afce80b047c2f3ba [2023-11-29 04:42:13,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 04:42:13,942 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 04:42:13,943 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 04:42:13,943 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 04:42:13,948 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 04:42:13,949 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:42:13" (1/1) ... [2023-11-29 04:42:13,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51643bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:13, skipping insertion in model container [2023-11-29 04:42:13,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 04:42:13" (1/1) ... [2023-11-29 04:42:14,034 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 04:42:14,252 WARN L240 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_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2023-11-29 04:42:14,556 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:42:14,575 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 04:42:14,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Util.i","") [48] [2023-11-29 04:42:14,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Email.i","") [66] [2023-11-29 04:42:14,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [189] [2023-11-29 04:42:14,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [198] [2023-11-29 04:42:14,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [236] [2023-11-29 04:42:14,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"EmailLib.i","") [602] [2023-11-29 04:42:14,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Client.i","") [1007] [2023-11-29 04:42:14,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1314] [2023-11-29 04:42:14,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"DecryptForward_spec.i","") [1618] [2023-11-29 04:42:14,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"ClientLib.i","") [1637] [2023-11-29 04:42:14,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2702] [2023-11-29 04:42:14,601 WARN L240 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_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/sv-benchmarks/c/product-lines/email_spec0_product22.cil.c[4724,4737] [2023-11-29 04:42:14,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 04:42:14,731 WARN L675 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 04:42:14,740 INFO L206 MainTranslator]: Completed translation [2023-11-29 04:42:14,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14 WrapperNode [2023-11-29 04:42:14,740 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 04:42:14,741 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 04:42:14,742 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 04:42:14,742 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 04:42:14,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,778 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,832 INFO L138 Inliner]: procedures = 128, calls = 205, calls flagged for inlining = 58, calls inlined = 53, statements flattened = 1032 [2023-11-29 04:42:14,833 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 04:42:14,834 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 04:42:14,834 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 04:42:14,834 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 04:42:14,846 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,846 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,853 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,884 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 4, 4, 4]. 29 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 4, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0]. [2023-11-29 04:42:14,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,885 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,904 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,919 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 04:42:14,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 04:42:14,937 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 04:42:14,937 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 04:42:14,938 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (1/1) ... [2023-11-29 04:42:14,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 04:42:14,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:42:14,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 04:42:14,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 04:42:15,017 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailEncryptionKey [2023-11-29 04:42:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailEncryptionKey [2023-11-29 04:42:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailEncryptionKey [2023-11-29 04:42:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailEncryptionKey [2023-11-29 04:42:15,018 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailTo [2023-11-29 04:42:15,018 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailTo [2023-11-29 04:42:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailFrom [2023-11-29 04:42:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailFrom [2023-11-29 04:42:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure isReadable [2023-11-29 04:42:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isReadable [2023-11-29 04:42:15,019 INFO L130 BoogieDeclarations]: Found specification of procedure createClientKeyringEntry [2023-11-29 04:42:15,019 INFO L138 BoogieDeclarations]: Found implementation of procedure createClientKeyringEntry [2023-11-29 04:42:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailIsEncrypted [2023-11-29 04:42:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailIsEncrypted [2023-11-29 04:42:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure chuckKeyAdd [2023-11-29 04:42:15,020 INFO L138 BoogieDeclarations]: Found implementation of procedure chuckKeyAdd [2023-11-29 04:42:15,020 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2023-11-29 04:42:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure getEmailFrom [2023-11-29 04:42:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure getEmailFrom [2023-11-29 04:42:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure queue [2023-11-29 04:42:15,021 INFO L138 BoogieDeclarations]: Found implementation of procedure queue [2023-11-29 04:42:15,021 INFO L130 BoogieDeclarations]: Found specification of procedure setClientId [2023-11-29 04:42:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientId [2023-11-29 04:42:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 04:42:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringUser [2023-11-29 04:42:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringUser [2023-11-29 04:42:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure setClientKeyringPublicKey [2023-11-29 04:42:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientKeyringPublicKey [2023-11-29 04:42:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure outgoing [2023-11-29 04:42:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure outgoing [2023-11-29 04:42:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure sendEmail [2023-11-29 04:42:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure sendEmail [2023-11-29 04:42:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure isEncrypted [2023-11-29 04:42:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isEncrypted [2023-11-29 04:42:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure setClientPrivateKey [2023-11-29 04:42:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setClientPrivateKey [2023-11-29 04:42:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure setEmailTo [2023-11-29 04:42:15,024 INFO L138 BoogieDeclarations]: Found implementation of procedure setEmailTo [2023-11-29 04:42:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 04:42:15,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 04:42:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 04:42:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 04:42:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure generateKeyPair [2023-11-29 04:42:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure generateKeyPair [2023-11-29 04:42:15,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 04:42:15,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 04:42:15,249 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 04:42:15,252 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 04:42:16,001 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 04:42:16,066 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 04:42:16,067 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 04:42:16,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:42:16 BoogieIcfgContainer [2023-11-29 04:42:16,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 04:42:16,070 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 04:42:16,070 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 04:42:16,073 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 04:42:16,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 04:42:13" (1/3) ... [2023-11-29 04:42:16,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21526b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:42:16, skipping insertion in model container [2023-11-29 04:42:16,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 04:42:14" (2/3) ... [2023-11-29 04:42:16,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21526b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 04:42:16, skipping insertion in model container [2023-11-29 04:42:16,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 04:42:16" (3/3) ... [2023-11-29 04:42:16,075 INFO L112 eAbstractionObserver]: Analyzing ICFG email_spec0_product22.cil.c [2023-11-29 04:42:16,091 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 04:42:16,091 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 04:42:16,149 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 04:42:16,156 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=LoopHeads, 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;@5cae45aa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 04:42:16,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 04:42:16,163 INFO L276 IsEmpty]: Start isEmpty. Operand has 295 states, 224 states have (on average 1.5892857142857142) internal successors, (356), 228 states have internal predecessors, (356), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2023-11-29 04:42:16,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-29 04:42:16,187 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:16,188 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:42:16,189 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:16,194 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:16,195 INFO L85 PathProgramCache]: Analyzing trace with hash 651467116, now seen corresponding path program 1 times [2023-11-29 04:42:16,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:16,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990325995] [2023-11-29 04:42:16,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:16,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:16,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:16,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:16,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:42:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:42:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:42:16,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2023-11-29 04:42:16,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-29 04:42:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 04:42:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:42:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:16,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 04:42:16,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:17,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 04:42:17,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:17,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 04:42:17,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:17,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:17,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:17,028 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 04:42:17,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:17,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990325995] [2023-11-29 04:42:17,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990325995] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:42:17,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078807376] [2023-11-29 04:42:17,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:17,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:17,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:42:17,038 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:42:17,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 04:42:17,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:17,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-29 04:42:17,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:42:17,451 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:42:17,452 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:42:17,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078807376] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:17,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:42:17,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2023-11-29 04:42:17,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935288956] [2023-11-29 04:42:17,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:17,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-29 04:42:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:17,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-29 04:42:17,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:42:17,497 INFO L87 Difference]: Start difference. First operand has 295 states, 224 states have (on average 1.5892857142857142) internal successors, (356), 228 states have internal predecessors, (356), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) Second operand has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:17,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:17,592 INFO L93 Difference]: Finished difference Result 441 states and 668 transitions. [2023-11-29 04:42:17,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-29 04:42:17,595 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 111 [2023-11-29 04:42:17,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:17,608 INFO L225 Difference]: With dead ends: 441 [2023-11-29 04:42:17,609 INFO L226 Difference]: Without dead ends: 292 [2023-11-29 04:42:17,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:42:17,617 INFO L413 NwaCegarLoop]: 436 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:17,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 436 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:42:17,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2023-11-29 04:42:17,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2023-11-29 04:42:17,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 222 states have (on average 1.572072072072072) internal successors, (349), 225 states have internal predecessors, (349), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 04:42:17,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 448 transitions. [2023-11-29 04:42:17,690 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 448 transitions. Word has length 111 [2023-11-29 04:42:17,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:17,692 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 448 transitions. [2023-11-29 04:42:17,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.0) internal successors, (60), 2 states have internal predecessors, (60), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 448 transitions. [2023-11-29 04:42:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-29 04:42:17,699 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:17,699 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:42:17,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 04:42:17,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-29 04:42:17,901 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:17,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash 363387351, now seen corresponding path program 1 times [2023-11-29 04:42:17,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:17,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144438414] [2023-11-29 04:42:17,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:17,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:18,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:18,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:42:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:42:18,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:42:18,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 04:42:18,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 04:42:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:42:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:42:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:42:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 04:42:18,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:42:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,229 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 04:42:18,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:18,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144438414] [2023-11-29 04:42:18,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144438414] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:42:18,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836676684] [2023-11-29 04:42:18,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:18,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:18,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:42:18,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:42:18,239 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 04:42:18,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:18,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 04:42:18,567 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:42:18,596 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:42:18,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:42:18,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836676684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:18,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:42:18,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-29 04:42:18,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757350063] [2023-11-29 04:42:18,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:18,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:42:18,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:18,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:42:18,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:42:18,600 INFO L87 Difference]: Start difference. First operand 292 states and 448 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:18,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:18,673 INFO L93 Difference]: Finished difference Result 437 states and 655 transitions. [2023-11-29 04:42:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:42:18,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 112 [2023-11-29 04:42:18,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:18,679 INFO L225 Difference]: With dead ends: 437 [2023-11-29 04:42:18,679 INFO L226 Difference]: Without dead ends: 294 [2023-11-29 04:42:18,682 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:42:18,683 INFO L413 NwaCegarLoop]: 433 mSDtfsCounter, 0 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:18,684 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 865 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:42:18,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2023-11-29 04:42:18,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2023-11-29 04:42:18,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 224 states have (on average 1.5669642857142858) internal successors, (351), 227 states have internal predecessors, (351), 50 states have call successors, (50), 19 states have call predecessors, (50), 19 states have return successors, (49), 49 states have call predecessors, (49), 49 states have call successors, (49) [2023-11-29 04:42:18,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 450 transitions. [2023-11-29 04:42:18,731 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 450 transitions. Word has length 112 [2023-11-29 04:42:18,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:18,731 INFO L495 AbstractCegarLoop]: Abstraction has 294 states and 450 transitions. [2023-11-29 04:42:18,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:18,732 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 450 transitions. [2023-11-29 04:42:18,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-29 04:42:18,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:18,736 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:42:18,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 04:42:18,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:18,939 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:18,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:18,939 INFO L85 PathProgramCache]: Analyzing trace with hash 602747457, now seen corresponding path program 1 times [2023-11-29 04:42:18,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:18,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089705633] [2023-11-29 04:42:18,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:18,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:18,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:19,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:19,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:42:19,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:42:19,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:42:19,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-29 04:42:19,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 04:42:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 04:42:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:42:19,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 04:42:19,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 04:42:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 04:42:19,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:19,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,187 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:42:19,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:19,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089705633] [2023-11-29 04:42:19,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089705633] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:42:19,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346296699] [2023-11-29 04:42:19,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:19,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:19,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:42:19,190 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:42:19,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 04:42:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:19,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:42:19,531 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:42:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 04:42:19,556 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:42:19,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346296699] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:19,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:42:19,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2023-11-29 04:42:19,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129513741] [2023-11-29 04:42:19,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:19,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 04:42:19,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:19,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 04:42:19,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:42:19,560 INFO L87 Difference]: Start difference. First operand 294 states and 450 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:19,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:19,630 INFO L93 Difference]: Finished difference Result 622 states and 966 transitions. [2023-11-29 04:42:19,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 04:42:19,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 119 [2023-11-29 04:42:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:19,635 INFO L225 Difference]: With dead ends: 622 [2023-11-29 04:42:19,635 INFO L226 Difference]: Without dead ends: 350 [2023-11-29 04:42:19,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-29 04:42:19,639 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 109 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 838 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:19,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 838 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 04:42:19,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2023-11-29 04:42:19,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 345. [2023-11-29 04:42:19,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345 states, 264 states have (on average 1.5833333333333333) internal successors, (418), 267 states have internal predecessors, (418), 61 states have call successors, (61), 19 states have call predecessors, (61), 19 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2023-11-29 04:42:19,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 345 states and 539 transitions. [2023-11-29 04:42:19,669 INFO L78 Accepts]: Start accepts. Automaton has 345 states and 539 transitions. Word has length 119 [2023-11-29 04:42:19,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:19,669 INFO L495 AbstractCegarLoop]: Abstraction has 345 states and 539 transitions. [2023-11-29 04:42:19,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:19,670 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 539 transitions. [2023-11-29 04:42:19,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-11-29 04:42:19,674 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:19,674 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2023-11-29 04:42:19,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 04:42:19,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:19,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:19,875 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:19,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1548440032, now seen corresponding path program 1 times [2023-11-29 04:42:19,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:19,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250489791] [2023-11-29 04:42:19,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:19,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:20,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-29 04:42:20,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-29 04:42:20,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-29 04:42:20,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-29 04:42:20,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:42:20,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 04:42:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:42:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:42:20,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 04:42:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 04:42:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,181 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:42:20,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:20,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250489791] [2023-11-29 04:42:20,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250489791] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:42:20,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058278985] [2023-11-29 04:42:20,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:20,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:20,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:42:20,187 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:42:20,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 04:42:20,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:20,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 1102 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 04:42:20,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:42:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:42:20,636 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:42:20,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058278985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:20,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:42:20,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 04:42:20,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011277172] [2023-11-29 04:42:20,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:20,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:42:20,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:20,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:42:20,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:42:20,639 INFO L87 Difference]: Start difference. First operand 345 states and 539 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:20,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:20,789 INFO L93 Difference]: Finished difference Result 685 states and 1072 transitions. [2023-11-29 04:42:20,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:42:20,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 120 [2023-11-29 04:42:20,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:20,794 INFO L225 Difference]: With dead ends: 685 [2023-11-29 04:42:20,794 INFO L226 Difference]: Without dead ends: 347 [2023-11-29 04:42:20,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:20,797 INFO L413 NwaCegarLoop]: 424 mSDtfsCounter, 8 mSDsluCounter, 1261 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1685 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:20,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1685 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:42:20,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2023-11-29 04:42:20,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2023-11-29 04:42:20,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 347 states, 265 states have (on average 1.5811320754716982) internal successors, (419), 269 states have internal predecessors, (419), 61 states have call successors, (61), 19 states have call predecessors, (61), 20 states have return successors, (62), 60 states have call predecessors, (62), 60 states have call successors, (62) [2023-11-29 04:42:20,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 542 transitions. [2023-11-29 04:42:20,822 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 542 transitions. Word has length 120 [2023-11-29 04:42:20,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:20,823 INFO L495 AbstractCegarLoop]: Abstraction has 347 states and 542 transitions. [2023-11-29 04:42:20,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 542 transitions. [2023-11-29 04:42:20,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-11-29 04:42:20,827 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:20,827 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2023-11-29 04:42:20,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 04:42:21,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:21,035 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:21,035 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:21,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1216469767, now seen corresponding path program 1 times [2023-11-29 04:42:21,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:21,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125623150] [2023-11-29 04:42:21,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:21,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:21,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:21,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-29 04:42:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-29 04:42:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-29 04:42:21,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:42:21,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 04:42:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 04:42:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:42:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 04:42:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 04:42:21,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,387 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 04:42:21,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:21,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125623150] [2023-11-29 04:42:21,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125623150] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:42:21,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003882276] [2023-11-29 04:42:21,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:21,388 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:21,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:42:21,390 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:42:21,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 04:42:21,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:21,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 04:42:21,714 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:42:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-29 04:42:21,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:42:21,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003882276] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:21,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:42:21,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2023-11-29 04:42:21,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973953871] [2023-11-29 04:42:21,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:21,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:42:21,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:21,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:42:21,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:42:21,781 INFO L87 Difference]: Start difference. First operand 347 states and 542 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:21,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:21,930 INFO L93 Difference]: Finished difference Result 687 states and 1077 transitions. [2023-11-29 04:42:21,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:42:21,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 121 [2023-11-29 04:42:21,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:21,935 INFO L225 Difference]: With dead ends: 687 [2023-11-29 04:42:21,935 INFO L226 Difference]: Without dead ends: 349 [2023-11-29 04:42:21,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2023-11-29 04:42:21,938 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 8 mSDsluCounter, 1249 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:21,939 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1671 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:42:21,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2023-11-29 04:42:21,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2023-11-29 04:42:21,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 266 states have (on average 1.5789473684210527) internal successors, (420), 271 states have internal predecessors, (420), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2023-11-29 04:42:21,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 548 transitions. [2023-11-29 04:42:21,962 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 548 transitions. Word has length 121 [2023-11-29 04:42:21,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:21,963 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 548 transitions. [2023-11-29 04:42:21,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:21,963 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 548 transitions. [2023-11-29 04:42:21,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2023-11-29 04:42:21,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:21,967 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:21,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 04:42:22,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:22,168 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:22,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:22,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1140225367, now seen corresponding path program 1 times [2023-11-29 04:42:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:22,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117532313] [2023-11-29 04:42:22,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:22,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:22,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:22,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:22,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-29 04:42:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-29 04:42:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-11-29 04:42:22,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 04:42:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 04:42:22,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:42:22,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:42:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-11-29 04:42:22,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:22,497 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:42:22,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:22,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117532313] [2023-11-29 04:42:22,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117532313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:22,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:22,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:42:22,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256214821] [2023-11-29 04:42:22,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:22,499 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:42:22,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:22,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:42:22,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:42:22,500 INFO L87 Difference]: Start difference. First operand 349 states and 548 transitions. Second operand has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:24,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:24,879 INFO L93 Difference]: Finished difference Result 829 states and 1313 transitions. [2023-11-29 04:42:24,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:42:24,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 122 [2023-11-29 04:42:24,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:24,886 INFO L225 Difference]: With dead ends: 829 [2023-11-29 04:42:24,886 INFO L226 Difference]: Without dead ends: 499 [2023-11-29 04:42:24,887 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:42:24,888 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 992 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2217 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 2217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:24,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [993 Valid, 1011 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 2217 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-29 04:42:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2023-11-29 04:42:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 349. [2023-11-29 04:42:24,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 266 states have (on average 1.5789473684210527) internal successors, (420), 271 states have internal predecessors, (420), 61 states have call successors, (61), 19 states have call predecessors, (61), 21 states have return successors, (66), 60 states have call predecessors, (66), 60 states have call successors, (66) [2023-11-29 04:42:24,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 547 transitions. [2023-11-29 04:42:24,930 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 547 transitions. Word has length 122 [2023-11-29 04:42:24,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:24,931 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 547 transitions. [2023-11-29 04:42:24,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.375) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:24,931 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 547 transitions. [2023-11-29 04:42:24,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-29 04:42:24,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:24,934 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:24,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 04:42:24,934 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:24,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:24,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1986482446, now seen corresponding path program 2 times [2023-11-29 04:42:24,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:24,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108220931] [2023-11-29 04:42:24,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:24,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:25,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:25,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-29 04:42:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-29 04:42:25,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 04:42:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 04:42:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 04:42:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 04:42:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 04:42:25,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 04:42:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:25,151 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:42:25,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:25,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108220931] [2023-11-29 04:42:25,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108220931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:25,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:25,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-29 04:42:25,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610308779] [2023-11-29 04:42:25,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:25,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 04:42:25,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:25,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 04:42:25,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-11-29 04:42:25,154 INFO L87 Difference]: Start difference. First operand 349 states and 547 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:27,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:27,205 INFO L93 Difference]: Finished difference Result 831 states and 1316 transitions. [2023-11-29 04:42:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 04:42:27,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2023-11-29 04:42:27,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:27,210 INFO L225 Difference]: With dead ends: 831 [2023-11-29 04:42:27,210 INFO L226 Difference]: Without dead ends: 501 [2023-11-29 04:42:27,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 04:42:27,212 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 1019 mSDsluCounter, 849 mSDsCounter, 0 mSdLazyCounter, 2177 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 1011 SdHoareTripleChecker+Invalid, 2550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:27,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 1011 Invalid, 2550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2177 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-11-29 04:42:27,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-11-29 04:42:27,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 351. [2023-11-29 04:42:27,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 267 states have (on average 1.5767790262172285) internal successors, (421), 273 states have internal predecessors, (421), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2023-11-29 04:42:27,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 550 transitions. [2023-11-29 04:42:27,242 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 550 transitions. Word has length 123 [2023-11-29 04:42:27,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:27,242 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 550 transitions. [2023-11-29 04:42:27,242 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 6 states have call predecessors, (16), 2 states have return successors, (14), 2 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:42:27,243 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 550 transitions. [2023-11-29 04:42:27,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-29 04:42:27,244 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:27,245 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:27,245 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 04:42:27,245 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:27,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:27,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1773068452, now seen corresponding path program 1 times [2023-11-29 04:42:27,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:27,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234870512] [2023-11-29 04:42:27,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:27,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:27,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-29 04:42:27,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 04:42:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:42:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:42:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 04:42:27,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 04:42:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 04:42:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 04:42:27,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:27,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234870512] [2023-11-29 04:42:27,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234870512] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:27,517 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:27,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:42:27,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011107256] [2023-11-29 04:42:27,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:27,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:42:27,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:27,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:42:27,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:42:27,520 INFO L87 Difference]: Start difference. First operand 351 states and 550 transitions. Second operand has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:42:30,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:30,148 INFO L93 Difference]: Finished difference Result 829 states and 1311 transitions. [2023-11-29 04:42:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:42:30,149 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 124 [2023-11-29 04:42:30,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:30,154 INFO L225 Difference]: With dead ends: 829 [2023-11-29 04:42:30,154 INFO L226 Difference]: Without dead ends: 501 [2023-11-29 04:42:30,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:42:30,157 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 987 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 3660 mSolverCounterSat, 378 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 988 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 4038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 378 IncrementalHoareTripleChecker+Valid, 3660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:30,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [988 Valid, 1398 Invalid, 4038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [378 Valid, 3660 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 04:42:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2023-11-29 04:42:30,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 351. [2023-11-29 04:42:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 267 states have (on average 1.5767790262172285) internal successors, (421), 273 states have internal predecessors, (421), 61 states have call successors, (61), 19 states have call predecessors, (61), 22 states have return successors, (67), 60 states have call predecessors, (67), 60 states have call successors, (67) [2023-11-29 04:42:30,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 549 transitions. [2023-11-29 04:42:30,200 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 549 transitions. Word has length 124 [2023-11-29 04:42:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:30,200 INFO L495 AbstractCegarLoop]: Abstraction has 351 states and 549 transitions. [2023-11-29 04:42:30,201 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.2727272727272725) internal successors, (80), 8 states have internal predecessors, (80), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:42:30,201 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 549 transitions. [2023-11-29 04:42:30,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2023-11-29 04:42:30,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:30,205 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:30,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 04:42:30,205 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:30,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:30,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1019789636, now seen corresponding path program 2 times [2023-11-29 04:42:30,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:30,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588447158] [2023-11-29 04:42:30,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:30,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:30,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:30,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:30,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:30,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:30,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:30,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:30,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-29 04:42:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 04:42:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:42:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 04:42:30,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 04:42:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 04:42:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 04:42:30,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:30,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 04:42:30,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:30,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588447158] [2023-11-29 04:42:30,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588447158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:30,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:30,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:42:30,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50359655] [2023-11-29 04:42:30,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:30,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:42:30,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:30,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:42:30,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:42:30,523 INFO L87 Difference]: Start difference. First operand 351 states and 549 transitions. Second operand has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:42:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:33,019 INFO L93 Difference]: Finished difference Result 831 states and 1317 transitions. [2023-11-29 04:42:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:42:33,019 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) Word has length 125 [2023-11-29 04:42:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:33,023 INFO L225 Difference]: With dead ends: 831 [2023-11-29 04:42:33,023 INFO L226 Difference]: Without dead ends: 503 [2023-11-29 04:42:33,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=440, Unknown=0, NotChecked=0, Total=552 [2023-11-29 04:42:33,025 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 995 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 3609 mSolverCounterSat, 367 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 1398 SdHoareTripleChecker+Invalid, 3976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 367 IncrementalHoareTripleChecker+Valid, 3609 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:33,025 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 1398 Invalid, 3976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [367 Valid, 3609 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-29 04:42:33,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2023-11-29 04:42:33,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 353. [2023-11-29 04:42:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 268 states have (on average 1.5746268656716418) internal successors, (422), 275 states have internal predecessors, (422), 61 states have call successors, (61), 19 states have call predecessors, (61), 23 states have return successors, (72), 60 states have call predecessors, (72), 60 states have call successors, (72) [2023-11-29 04:42:33,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 555 transitions. [2023-11-29 04:42:33,053 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 555 transitions. Word has length 125 [2023-11-29 04:42:33,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:33,053 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 555 transitions. [2023-11-29 04:42:33,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.363636363636363) internal successors, (81), 8 states have internal predecessors, (81), 4 states have call successors, (16), 6 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 4 states have call successors, (14) [2023-11-29 04:42:33,053 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 555 transitions. [2023-11-29 04:42:33,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-11-29 04:42:33,055 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:33,056 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:33,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-29 04:42:33,056 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:33,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:33,056 INFO L85 PathProgramCache]: Analyzing trace with hash 688996799, now seen corresponding path program 1 times [2023-11-29 04:42:33,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:33,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241580671] [2023-11-29 04:42:33,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:33,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:33,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:33,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 04:42:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:42:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:42:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:42:33,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 04:42:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 04:42:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 04:42:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 04:42:33,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:33,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241580671] [2023-11-29 04:42:33,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241580671] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:42:33,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707486949] [2023-11-29 04:42:33,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:33,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:33,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:42:33,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:42:33,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 04:42:33,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:33,620 INFO L262 TraceCheckSpWp]: Trace formula consists of 1108 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 04:42:33,624 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:42:33,671 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:33,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 04:42:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:33,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707486949] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 04:42:33,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 04:42:33,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 15 [2023-11-29 04:42:33,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589059846] [2023-11-29 04:42:33,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 04:42:33,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-29 04:42:33,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:33,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-29 04:42:33,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2023-11-29 04:42:33,786 INFO L87 Difference]: Start difference. First operand 353 states and 555 transitions. Second operand has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 04:42:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:36,416 INFO L93 Difference]: Finished difference Result 1180 states and 1963 transitions. [2023-11-29 04:42:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 04:42:36,417 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) Word has length 126 [2023-11-29 04:42:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:36,423 INFO L225 Difference]: With dead ends: 1180 [2023-11-29 04:42:36,423 INFO L226 Difference]: Without dead ends: 853 [2023-11-29 04:42:36,425 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=827, Unknown=0, NotChecked=0, Total=992 [2023-11-29 04:42:36,426 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 2062 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 4589 mSolverCounterSat, 704 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2079 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 5293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 704 IncrementalHoareTripleChecker+Valid, 4589 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:36,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2079 Valid, 1700 Invalid, 5293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [704 Valid, 4589 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-29 04:42:36,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states. [2023-11-29 04:42:36,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 688. [2023-11-29 04:42:36,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 539 states have (on average 1.6233766233766234) internal successors, (875), 546 states have internal predecessors, (875), 125 states have call successors, (125), 19 states have call predecessors, (125), 23 states have return successors, (146), 124 states have call predecessors, (146), 124 states have call successors, (146) [2023-11-29 04:42:36,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 1146 transitions. [2023-11-29 04:42:36,481 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 1146 transitions. Word has length 126 [2023-11-29 04:42:36,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:36,481 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 1146 transitions. [2023-11-29 04:42:36,481 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 9.071428571428571) internal successors, (127), 11 states have internal predecessors, (127), 4 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (26), 3 states have call predecessors, (26), 4 states have call successors, (26) [2023-11-29 04:42:36,482 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 1146 transitions. [2023-11-29 04:42:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-11-29 04:42:36,487 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:36,487 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:36,494 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 04:42:36,687 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:42:36,688 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:36,688 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:36,688 INFO L85 PathProgramCache]: Analyzing trace with hash 272316160, now seen corresponding path program 1 times [2023-11-29 04:42:36,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:36,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115333676] [2023-11-29 04:42:36,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:36,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:36,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:36,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:36,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 04:42:36,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 04:42:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 04:42:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 04:42:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 04:42:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 04:42:36,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 04:42:36,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:36,818 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:36,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:36,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115333676] [2023-11-29 04:42:36,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115333676] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:36,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:36,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:36,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971552249] [2023-11-29 04:42:36,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:36,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:36,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:36,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:36,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:36,820 INFO L87 Difference]: Start difference. First operand 688 states and 1146 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:38,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:38,289 INFO L93 Difference]: Finished difference Result 1775 states and 3022 transitions. [2023-11-29 04:42:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:38,289 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2023-11-29 04:42:38,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:38,297 INFO L225 Difference]: With dead ends: 1775 [2023-11-29 04:42:38,297 INFO L226 Difference]: Without dead ends: 1155 [2023-11-29 04:42:38,299 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:38,300 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 1088 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 1288 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 1706 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 1288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:38,300 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 749 Invalid, 1706 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 1288 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:42:38,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1155 states. [2023-11-29 04:42:38,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1155 to 1000. [2023-11-29 04:42:38,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 787 states have (on average 1.6353240152477764) internal successors, (1287), 794 states have internal predecessors, (1287), 189 states have call successors, (189), 19 states have call predecessors, (189), 23 states have return successors, (220), 188 states have call predecessors, (220), 188 states have call successors, (220) [2023-11-29 04:42:38,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1696 transitions. [2023-11-29 04:42:38,381 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1696 transitions. Word has length 130 [2023-11-29 04:42:38,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:38,382 INFO L495 AbstractCegarLoop]: Abstraction has 1000 states and 1696 transitions. [2023-11-29 04:42:38,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:38,382 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1696 transitions. [2023-11-29 04:42:38,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-29 04:42:38,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:38,391 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:38,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 04:42:38,392 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:38,392 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:38,392 INFO L85 PathProgramCache]: Analyzing trace with hash 700014208, now seen corresponding path program 1 times [2023-11-29 04:42:38,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:38,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476997180] [2023-11-29 04:42:38,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:38,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:38,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:38,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:38,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 04:42:38,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 04:42:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:42:38,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-29 04:42:38,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:42:38,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 04:42:38,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 04:42:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:38,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:38,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476997180] [2023-11-29 04:42:38,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476997180] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:38,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:38,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:38,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548405772] [2023-11-29 04:42:38,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:38,544 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:38,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:38,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:38,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:38,545 INFO L87 Difference]: Start difference. First operand 1000 states and 1696 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:40,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:40,192 INFO L93 Difference]: Finished difference Result 2544 states and 4370 transitions. [2023-11-29 04:42:40,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:40,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 131 [2023-11-29 04:42:40,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:40,205 INFO L225 Difference]: With dead ends: 2544 [2023-11-29 04:42:40,205 INFO L226 Difference]: Without dead ends: 1662 [2023-11-29 04:42:40,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:40,210 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1104 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 1707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:40,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 741 Invalid, 1707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 1286 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:42:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1662 states. [2023-11-29 04:42:40,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1662 to 1507. [2023-11-29 04:42:40,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1507 states, 1199 states have (on average 1.640533778148457) internal successors, (1967), 1206 states have internal predecessors, (1967), 284 states have call successors, (284), 19 states have call predecessors, (284), 23 states have return successors, (315), 283 states have call predecessors, (315), 283 states have call successors, (315) [2023-11-29 04:42:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1507 states to 1507 states and 2566 transitions. [2023-11-29 04:42:40,317 INFO L78 Accepts]: Start accepts. Automaton has 1507 states and 2566 transitions. Word has length 131 [2023-11-29 04:42:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:40,318 INFO L495 AbstractCegarLoop]: Abstraction has 1507 states and 2566 transitions. [2023-11-29 04:42:40,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 3 states have internal predecessors, (82), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 1507 states and 2566 transitions. [2023-11-29 04:42:40,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2023-11-29 04:42:40,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:40,329 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:40,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 04:42:40,329 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:40,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:40,329 INFO L85 PathProgramCache]: Analyzing trace with hash 922344690, now seen corresponding path program 1 times [2023-11-29 04:42:40,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:40,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935347975] [2023-11-29 04:42:40,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:40,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:40,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:40,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:40,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:40,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:40,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:40,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:40,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-29 04:42:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:42:40,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:42:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-29 04:42:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:42:40,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 04:42:40,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 04:42:40,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:40,484 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:40,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:40,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935347975] [2023-11-29 04:42:40,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935347975] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:40,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:40,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:40,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103984474] [2023-11-29 04:42:40,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:40,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:40,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:40,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:40,488 INFO L87 Difference]: Start difference. First operand 1507 states and 2566 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:41,763 INFO L93 Difference]: Finished difference Result 3690 states and 6395 transitions. [2023-11-29 04:42:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:41,764 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2023-11-29 04:42:41,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:41,776 INFO L225 Difference]: With dead ends: 3690 [2023-11-29 04:42:41,776 INFO L226 Difference]: Without dead ends: 2429 [2023-11-29 04:42:41,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:41,780 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1094 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 440 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 440 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:41,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 738 Invalid, 1683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [440 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:42:41,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2023-11-29 04:42:41,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2274. [2023-11-29 04:42:41,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2274 states, 1843 states have (on average 1.64514378730331) internal successors, (3032), 1850 states have internal predecessors, (3032), 407 states have call successors, (407), 19 states have call predecessors, (407), 23 states have return successors, (454), 406 states have call predecessors, (454), 406 states have call successors, (454) [2023-11-29 04:42:41,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2274 states to 2274 states and 3893 transitions. [2023-11-29 04:42:41,956 INFO L78 Accepts]: Start accepts. Automaton has 2274 states and 3893 transitions. Word has length 132 [2023-11-29 04:42:41,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:41,956 INFO L495 AbstractCegarLoop]: Abstraction has 2274 states and 3893 transitions. [2023-11-29 04:42:41,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 3 states have internal predecessors, (83), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:41,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2274 states and 3893 transitions. [2023-11-29 04:42:41,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-11-29 04:42:41,971 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:41,972 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:41,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 04:42:41,972 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:41,972 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:41,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1558176895, now seen corresponding path program 1 times [2023-11-29 04:42:41,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:41,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030648680] [2023-11-29 04:42:41,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:41,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:42,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:42,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:42,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:42,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 04:42:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:42:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 04:42:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2023-11-29 04:42:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 04:42:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-11-29 04:42:42,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 04:42:42,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:42,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:42,122 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:42,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:42,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030648680] [2023-11-29 04:42:42,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030648680] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:42,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:42,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:42,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969680758] [2023-11-29 04:42:42,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:42,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:42,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:42,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:42,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:42,126 INFO L87 Difference]: Start difference. First operand 2274 states and 3893 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:43,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:43,576 INFO L93 Difference]: Finished difference Result 5472 states and 9553 transitions. [2023-11-29 04:42:43,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:43,576 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 133 [2023-11-29 04:42:43,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:43,598 INFO L225 Difference]: With dead ends: 5472 [2023-11-29 04:42:43,598 INFO L226 Difference]: Without dead ends: 3653 [2023-11-29 04:42:43,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:43,603 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1092 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 1274 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 738 SdHoareTripleChecker+Invalid, 1684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:43,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 738 Invalid, 1684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1274 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:42:43,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3653 states. [2023-11-29 04:42:43,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3653 to 3498. [2023-11-29 04:42:43,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3498 states, 2888 states have (on average 1.6481994459833795) internal successors, (4760), 2895 states have internal predecessors, (4760), 586 states have call successors, (586), 19 states have call predecessors, (586), 23 states have return successors, (659), 585 states have call predecessors, (659), 585 states have call successors, (659) [2023-11-29 04:42:43,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3498 states to 3498 states and 6005 transitions. [2023-11-29 04:42:43,769 INFO L78 Accepts]: Start accepts. Automaton has 3498 states and 6005 transitions. Word has length 133 [2023-11-29 04:42:43,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:43,769 INFO L495 AbstractCegarLoop]: Abstraction has 3498 states and 6005 transitions. [2023-11-29 04:42:43,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 3 states have internal predecessors, (84), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:43,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3498 states and 6005 transitions. [2023-11-29 04:42:43,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-29 04:42:43,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:43,781 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:43,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-29 04:42:43,782 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:43,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:43,782 INFO L85 PathProgramCache]: Analyzing trace with hash 915055862, now seen corresponding path program 1 times [2023-11-29 04:42:43,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:43,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488992332] [2023-11-29 04:42:43,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:43,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:43,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:43,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:43,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-29 04:42:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:42:43,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-29 04:42:43,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 04:42:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 04:42:43,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 04:42:43,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 04:42:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:43,898 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:43,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:43,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488992332] [2023-11-29 04:42:43,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488992332] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:43,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:43,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:43,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471529667] [2023-11-29 04:42:43,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:43,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:43,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:43,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:43,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:43,901 INFO L87 Difference]: Start difference. First operand 3498 states and 6005 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:45,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:45,494 INFO L93 Difference]: Finished difference Result 8451 states and 14793 transitions. [2023-11-29 04:42:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:45,494 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 134 [2023-11-29 04:42:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:45,529 INFO L225 Difference]: With dead ends: 8451 [2023-11-29 04:42:45,529 INFO L226 Difference]: Without dead ends: 5711 [2023-11-29 04:42:45,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:45,537 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1094 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 1329 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 1329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:45,538 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 762 Invalid, 1767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1329 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-29 04:42:45,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2023-11-29 04:42:45,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 5556. [2023-11-29 04:42:45,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5556 states, 4570 states have (on average 1.637417943107221) internal successors, (7483), 4577 states have internal predecessors, (7483), 962 states have call successors, (962), 19 states have call predecessors, (962), 23 states have return successors, (1079), 961 states have call predecessors, (1079), 961 states have call successors, (1079) [2023-11-29 04:42:45,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5556 states to 5556 states and 9524 transitions. [2023-11-29 04:42:45,904 INFO L78 Accepts]: Start accepts. Automaton has 5556 states and 9524 transitions. Word has length 134 [2023-11-29 04:42:45,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:45,904 INFO L495 AbstractCegarLoop]: Abstraction has 5556 states and 9524 transitions. [2023-11-29 04:42:45,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:45,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5556 states and 9524 transitions. [2023-11-29 04:42:45,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-11-29 04:42:45,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:45,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:45,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-29 04:42:45,931 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:45,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:45,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1667121029, now seen corresponding path program 1 times [2023-11-29 04:42:45,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:45,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304672459] [2023-11-29 04:42:45,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:45,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:45,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 04:42:46,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:42:46,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 04:42:46,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2023-11-29 04:42:46,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:42:46,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 04:42:46,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 04:42:46,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:46,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:46,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304672459] [2023-11-29 04:42:46,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304672459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:46,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:46,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:46,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964774270] [2023-11-29 04:42:46,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:46,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:46,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:46,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:46,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:46,081 INFO L87 Difference]: Start difference. First operand 5556 states and 9524 transitions. Second operand has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:47,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:47,756 INFO L93 Difference]: Finished difference Result 13812 states and 24150 transitions. [2023-11-29 04:42:47,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:47,757 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 135 [2023-11-29 04:42:47,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:47,804 INFO L225 Difference]: With dead ends: 13812 [2023-11-29 04:42:47,804 INFO L226 Difference]: Without dead ends: 9400 [2023-11-29 04:42:47,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:47,836 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1043 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1058 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:47,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1058 Valid, 739 Invalid, 1762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1353 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:42:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9400 states. [2023-11-29 04:42:48,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9400 to 9245. [2023-11-29 04:42:48,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9245 states, 7653 states have (on average 1.6350450803606429) internal successors, (12513), 7660 states have internal predecessors, (12513), 1568 states have call successors, (1568), 19 states have call predecessors, (1568), 23 states have return successors, (1763), 1567 states have call predecessors, (1763), 1567 states have call successors, (1763) [2023-11-29 04:42:48,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9245 states to 9245 states and 15844 transitions. [2023-11-29 04:42:48,257 INFO L78 Accepts]: Start accepts. Automaton has 9245 states and 15844 transitions. Word has length 135 [2023-11-29 04:42:48,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:48,258 INFO L495 AbstractCegarLoop]: Abstraction has 9245 states and 15844 transitions. [2023-11-29 04:42:48,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.285714285714286) internal successors, (86), 3 states have internal predecessors, (86), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:48,259 INFO L276 IsEmpty]: Start isEmpty. Operand 9245 states and 15844 transitions. [2023-11-29 04:42:48,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-29 04:42:48,289 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:48,289 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:48,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-29 04:42:48,289 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:48,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:48,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1854182536, now seen corresponding path program 1 times [2023-11-29 04:42:48,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:48,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336530] [2023-11-29 04:42:48,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:48,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:48,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:48,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 04:42:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2023-11-29 04:42:48,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-29 04:42:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2023-11-29 04:42:48,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2023-11-29 04:42:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2023-11-29 04:42:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2023-11-29 04:42:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:48,400 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:48,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:48,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336530] [2023-11-29 04:42:48,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336530] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:48,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:48,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:48,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762528953] [2023-11-29 04:42:48,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:48,402 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:48,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:48,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:48,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:48,404 INFO L87 Difference]: Start difference. First operand 9245 states and 15844 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:50,107 INFO L93 Difference]: Finished difference Result 24004 states and 41914 transitions. [2023-11-29 04:42:50,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:50,107 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 136 [2023-11-29 04:42:50,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:50,161 INFO L225 Difference]: With dead ends: 24004 [2023-11-29 04:42:50,161 INFO L226 Difference]: Without dead ends: 16360 [2023-11-29 04:42:50,185 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:50,185 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 1115 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 441 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:50,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1130 Valid, 777 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-29 04:42:50,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16360 states. [2023-11-29 04:42:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16360 to 16205. [2023-11-29 04:42:50,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16205 states, 13410 states have (on average 1.6260999254287845) internal successors, (21806), 13417 states have internal predecessors, (21806), 2771 states have call successors, (2771), 19 states have call predecessors, (2771), 23 states have return successors, (3110), 2770 states have call predecessors, (3110), 2770 states have call successors, (3110) [2023-11-29 04:42:50,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16205 states to 16205 states and 27687 transitions. [2023-11-29 04:42:50,901 INFO L78 Accepts]: Start accepts. Automaton has 16205 states and 27687 transitions. Word has length 136 [2023-11-29 04:42:50,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:50,901 INFO L495 AbstractCegarLoop]: Abstraction has 16205 states and 27687 transitions. [2023-11-29 04:42:50,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:50,901 INFO L276 IsEmpty]: Start isEmpty. Operand 16205 states and 27687 transitions. [2023-11-29 04:42:50,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-11-29 04:42:50,930 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:50,931 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:50,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 04:42:50,931 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:50,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:50,931 INFO L85 PathProgramCache]: Analyzing trace with hash 728412506, now seen corresponding path program 1 times [2023-11-29 04:42:50,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:50,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184495067] [2023-11-29 04:42:50,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:50,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:50,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:50,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:50,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:50,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:51,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:51,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:51,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 04:42:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2023-11-29 04:42:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-11-29 04:42:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 04:42:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2023-11-29 04:42:51,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2023-11-29 04:42:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2023-11-29 04:42:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:51,039 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:51,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:51,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184495067] [2023-11-29 04:42:51,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184495067] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:51,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:51,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:51,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492175775] [2023-11-29 04:42:51,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:51,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:51,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:51,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:51,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:51,042 INFO L87 Difference]: Start difference. First operand 16205 states and 27687 transitions. Second operand has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:53,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:53,647 INFO L93 Difference]: Finished difference Result 42979 states and 74926 transitions. [2023-11-29 04:42:53,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:53,648 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 137 [2023-11-29 04:42:53,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:53,744 INFO L225 Difference]: With dead ends: 42979 [2023-11-29 04:42:53,745 INFO L226 Difference]: Without dead ends: 29023 [2023-11-29 04:42:53,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:53,772 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1052 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1308 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1067 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 1308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:53,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1067 Valid, 739 Invalid, 1717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 1308 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:42:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29023 states. [2023-11-29 04:42:55,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29023 to 28868. [2023-11-29 04:42:55,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28868 states, 24034 states have (on average 1.6223683115586254) internal successors, (38992), 24041 states have internal predecessors, (38992), 4810 states have call successors, (4810), 19 states have call predecessors, (4810), 23 states have return successors, (5423), 4809 states have call predecessors, (5423), 4809 states have call successors, (5423) [2023-11-29 04:42:55,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28868 states to 28868 states and 49225 transitions. [2023-11-29 04:42:55,196 INFO L78 Accepts]: Start accepts. Automaton has 28868 states and 49225 transitions. Word has length 137 [2023-11-29 04:42:55,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:42:55,197 INFO L495 AbstractCegarLoop]: Abstraction has 28868 states and 49225 transitions. [2023-11-29 04:42:55,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.571428571428571) internal successors, (88), 3 states have internal predecessors, (88), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 28868 states and 49225 transitions. [2023-11-29 04:42:55,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2023-11-29 04:42:55,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:42:55,234 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:42:55,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 04:42:55,234 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:42:55,234 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:42:55,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1163124774, now seen corresponding path program 1 times [2023-11-29 04:42:55,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:42:55,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028256757] [2023-11-29 04:42:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:42:55,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:42:55,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:42:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:42:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:42:55,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:42:55,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:42:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:42:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 04:42:55,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-29 04:42:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 04:42:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 04:42:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-29 04:42:55,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 04:42:55,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-11-29 04:42:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:42:55,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:42:55,348 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:42:55,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:42:55,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028256757] [2023-11-29 04:42:55,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028256757] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:42:55,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:42:55,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:42:55,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948280065] [2023-11-29 04:42:55,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:42:55,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:42:55,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:42:55,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:42:55,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:42:55,350 INFO L87 Difference]: Start difference. First operand 28868 states and 49225 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:42:58,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:42:58,790 INFO L93 Difference]: Finished difference Result 78751 states and 136485 transitions. [2023-11-29 04:42:58,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:42:58,790 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 138 [2023-11-29 04:42:58,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:42:58,958 INFO L225 Difference]: With dead ends: 78751 [2023-11-29 04:42:58,958 INFO L226 Difference]: Without dead ends: 52911 [2023-11-29 04:42:59,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:42:59,007 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 1080 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 438 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1095 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 1687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 438 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-29 04:42:59,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1095 Valid, 739 Invalid, 1687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [438 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-29 04:42:59,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52911 states. [2023-11-29 04:43:00,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52911 to 52756. [2023-11-29 04:43:00,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52756 states, 44207 states have (on average 1.6174361526455086) internal successors, (71502), 44214 states have internal predecessors, (71502), 8525 states have call successors, (8525), 19 states have call predecessors, (8525), 23 states have return successors, (9670), 8524 states have call predecessors, (9670), 8524 states have call successors, (9670) [2023-11-29 04:43:00,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52756 states to 52756 states and 89697 transitions. [2023-11-29 04:43:00,997 INFO L78 Accepts]: Start accepts. Automaton has 52756 states and 89697 transitions. Word has length 138 [2023-11-29 04:43:00,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:43:00,998 INFO L495 AbstractCegarLoop]: Abstraction has 52756 states and 89697 transitions. [2023-11-29 04:43:00,998 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:43:00,998 INFO L276 IsEmpty]: Start isEmpty. Operand 52756 states and 89697 transitions. [2023-11-29 04:43:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2023-11-29 04:43:01,048 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:43:01,048 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:43:01,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 04:43:01,048 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:43:01,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:43:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash 401117306, now seen corresponding path program 1 times [2023-11-29 04:43:01,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:43:01,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399026674] [2023-11-29 04:43:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:43:01,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:43:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:43:01,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:43:01,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:43:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:43:01,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:43:01,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:43:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-29 04:43:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 04:43:01,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-29 04:43:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 04:43:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-11-29 04:43:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-11-29 04:43:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 04:43:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:43:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:01,156 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:43:01,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:43:01,157 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399026674] [2023-11-29 04:43:01,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399026674] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:43:01,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:43:01,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 04:43:01,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698760739] [2023-11-29 04:43:01,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:43:01,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:43:01,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:43:01,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:43:01,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 04:43:01,159 INFO L87 Difference]: Start difference. First operand 52756 states and 89697 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:43:05,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:43:05,155 INFO L93 Difference]: Finished difference Result 98526 states and 171190 transitions. [2023-11-29 04:43:05,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 04:43:05,156 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 139 [2023-11-29 04:43:05,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:43:05,457 INFO L225 Difference]: With dead ends: 98526 [2023-11-29 04:43:05,458 INFO L226 Difference]: Without dead ends: 98383 [2023-11-29 04:43:05,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:43:05,486 INFO L413 NwaCegarLoop]: 169 mSDtfsCounter, 1058 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 1301 mSolverCounterSat, 410 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1073 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 1711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 410 IncrementalHoareTripleChecker+Valid, 1301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-29 04:43:05,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1073 Valid, 742 Invalid, 1711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [410 Valid, 1301 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-29 04:43:05,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98383 states. [2023-11-29 04:43:09,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98383 to 98228. [2023-11-29 04:43:09,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98228 states, 82880 states have (on average 1.611136583011583) internal successors, (133531), 82887 states have internal predecessors, (133531), 15324 states have call successors, (15324), 19 states have call predecessors, (15324), 23 states have return successors, (17515), 15323 states have call predecessors, (17515), 15323 states have call successors, (17515) [2023-11-29 04:43:09,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98228 states to 98228 states and 166370 transitions. [2023-11-29 04:43:09,792 INFO L78 Accepts]: Start accepts. Automaton has 98228 states and 166370 transitions. Word has length 139 [2023-11-29 04:43:09,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:43:09,792 INFO L495 AbstractCegarLoop]: Abstraction has 98228 states and 166370 transitions. [2023-11-29 04:43:09,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 3 states have internal predecessors, (90), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:43:09,793 INFO L276 IsEmpty]: Start isEmpty. Operand 98228 states and 166370 transitions. [2023-11-29 04:43:10,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-11-29 04:43:10,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:43:10,115 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:43:10,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-29 04:43:10,115 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:43:10,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:43:10,115 INFO L85 PathProgramCache]: Analyzing trace with hash 878238663, now seen corresponding path program 1 times [2023-11-29 04:43:10,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:43:10,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328352091] [2023-11-29 04:43:10,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:43:10,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:43:10,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:43:10,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:43:10,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:43:10,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:43:10,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:43:10,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:43:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:43:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:43:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:43:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 04:43:10,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 04:43:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-11-29 04:43:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2023-11-29 04:43:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:43:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:10,846 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 04:43:10,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:43:10,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328352091] [2023-11-29 04:43:10,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328352091] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:43:10,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257833355] [2023-11-29 04:43:10,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:43:10,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:43:10,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:43:10,848 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:43:10,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 04:43:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:11,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:43:11,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:43:11,685 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 04:43:11,685 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:43:11,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257833355] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:43:11,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:43:11,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2023-11-29 04:43:11,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714664946] [2023-11-29 04:43:11,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:43:11,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:43:11,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:43:11,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:43:11,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=575, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:43:11,688 INFO L87 Difference]: Start difference. First operand 98228 states and 166370 transitions. Second operand has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:43:17,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:43:17,707 INFO L93 Difference]: Finished difference Result 195743 states and 337032 transitions. [2023-11-29 04:43:17,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:43:17,708 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 140 [2023-11-29 04:43:17,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:43:18,316 INFO L225 Difference]: With dead ends: 195743 [2023-11-29 04:43:18,316 INFO L226 Difference]: Without dead ends: 195605 [2023-11-29 04:43:18,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=163, Invalid=1169, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 04:43:18,368 INFO L413 NwaCegarLoop]: 552 mSDtfsCounter, 1141 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 1219 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1147 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:43:18,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1147 Valid, 3748 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:43:18,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195605 states. [2023-11-29 04:43:26,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195605 to 195581. [2023-11-29 04:43:27,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195581 states, 165083 states have (on average 1.6120072933009455) internal successors, (266115), 164985 states have internal predecessors, (266115), 30441 states have call successors, (30441), 50 states have call predecessors, (30441), 56 states have return successors, (38097), 30551 states have call predecessors, (38097), 30438 states have call successors, (38097) [2023-11-29 04:43:28,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195581 states to 195581 states and 334653 transitions. [2023-11-29 04:43:28,018 INFO L78 Accepts]: Start accepts. Automaton has 195581 states and 334653 transitions. Word has length 140 [2023-11-29 04:43:28,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:43:28,019 INFO L495 AbstractCegarLoop]: Abstraction has 195581 states and 334653 transitions. [2023-11-29 04:43:28,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.454545454545455) internal successors, (104), 9 states have internal predecessors, (104), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:43:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 195581 states and 334653 transitions. [2023-11-29 04:43:28,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 04:43:28,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:43:28,151 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:43:28,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 04:43:28,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:43:28,352 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:43:28,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:43:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash -2123509838, now seen corresponding path program 1 times [2023-11-29 04:43:28,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:43:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015484741] [2023-11-29 04:43:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:43:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:43:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:43:28,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:43:28,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:43:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:43:28,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:43:28,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:43:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:43:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:43:28,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:43:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:43:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 04:43:28,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 04:43:28,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 04:43:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:43:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:28,578 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-11-29 04:43:28,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:43:28,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015484741] [2023-11-29 04:43:28,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015484741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:43:28,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 04:43:28,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-29 04:43:28,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139765840] [2023-11-29 04:43:28,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:43:28,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:43:28,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:43:28,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:43:28,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:43:28,581 INFO L87 Difference]: Start difference. First operand 195581 states and 334653 transitions. Second operand has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:43:36,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:43:36,658 INFO L93 Difference]: Finished difference Result 197019 states and 343419 transitions. [2023-11-29 04:43:36,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-11-29 04:43:36,659 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 141 [2023-11-29 04:43:36,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:43:37,629 INFO L225 Difference]: With dead ends: 197019 [2023-11-29 04:43:37,629 INFO L226 Difference]: Without dead ends: 196392 [2023-11-29 04:43:37,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2023-11-29 04:43:37,685 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 1983 mSDsluCounter, 1074 mSDsCounter, 0 mSdLazyCounter, 3330 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 3987 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 3330 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-11-29 04:43:37,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1998 Valid, 1230 Invalid, 3987 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 3330 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-11-29 04:43:37,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196392 states. [2023-11-29 04:43:46,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196392 to 195784. [2023-11-29 04:43:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195784 states, 165233 states have (on average 1.611875351775977) internal successors, (266335), 165140 states have internal predecessors, (266335), 30492 states have call successors, (30492), 53 states have call predecessors, (30492), 58 states have return successors, (38162), 30602 states have call predecessors, (38162), 30489 states have call successors, (38162) [2023-11-29 04:43:47,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195784 states to 195784 states and 334989 transitions. [2023-11-29 04:43:47,471 INFO L78 Accepts]: Start accepts. Automaton has 195784 states and 334989 transitions. Word has length 141 [2023-11-29 04:43:47,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:43:47,472 INFO L495 AbstractCegarLoop]: Abstraction has 195784 states and 334989 transitions. [2023-11-29 04:43:47,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.666666666666667) internal successors, (92), 6 states have internal predecessors, (92), 5 states have call successors, (16), 7 states have call predecessors, (16), 1 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:43:47,472 INFO L276 IsEmpty]: Start isEmpty. Operand 195784 states and 334989 transitions. [2023-11-29 04:43:48,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-11-29 04:43:48,009 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:43:48,009 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:43:48,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-29 04:43:48,009 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:43:48,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:43:48,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1576161318, now seen corresponding path program 1 times [2023-11-29 04:43:48,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:43:48,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686496843] [2023-11-29 04:43:48,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:43:48,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:43:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:43:48,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:43:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:43:48,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:43:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:43:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:43:48,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:43:48,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:43:48,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-11-29 04:43:48,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:43:48,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 04:43:48,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 04:43:48,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2023-11-29 04:43:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:43:48,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,509 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-29 04:43:48,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:43:48,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686496843] [2023-11-29 04:43:48,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686496843] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:43:48,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025736336] [2023-11-29 04:43:48,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:43:48,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:43:48,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:43:48,511 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:43:48,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 04:43:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:43:48,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 1148 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 04:43:48,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:43:49,321 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 04:43:49,322 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:43:49,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1025736336] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:43:49,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:43:49,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [16] total 26 [2023-11-29 04:43:49,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581771326] [2023-11-29 04:43:49,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:43:49,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 04:43:49,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:43:49,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 04:43:49,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=583, Unknown=0, NotChecked=0, Total=650 [2023-11-29 04:43:49,324 INFO L87 Difference]: Start difference. First operand 195784 states and 334989 transitions. Second operand has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 9 states have internal predecessors, (105), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:44:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:01,172 INFO L93 Difference]: Finished difference Result 388666 states and 676083 transitions. [2023-11-29 04:44:01,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 04:44:01,173 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 9 states have internal predecessors, (105), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) Word has length 141 [2023-11-29 04:44:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:02,717 INFO L225 Difference]: With dead ends: 388666 [2023-11-29 04:44:02,717 INFO L226 Difference]: Without dead ends: 388142 [2023-11-29 04:44:02,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=1162, Unknown=0, NotChecked=0, Total=1332 [2023-11-29 04:44:02,814 INFO L413 NwaCegarLoop]: 461 mSDtfsCounter, 1117 mSDsluCounter, 3249 mSDsCounter, 0 mSdLazyCounter, 1315 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 3710 SdHoareTripleChecker+Invalid, 1520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:02,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1123 Valid, 3710 Invalid, 1520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [205 Valid, 1315 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:44:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388142 states. [2023-11-29 04:44:19,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388142 to 388114. [2023-11-29 04:44:19,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388114 states, 327652 states have (on average 1.6131780059331242) internal successors, (528561), 327293 states have internal predecessors, (528561), 60337 states have call successors, (60337), 115 states have call predecessors, (60337), 124 states have return successors, (84206), 60733 states have call predecessors, (84206), 60330 states have call successors, (84206) [2023-11-29 04:44:21,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388114 states to 388114 states and 673104 transitions. [2023-11-29 04:44:21,755 INFO L78 Accepts]: Start accepts. Automaton has 388114 states and 673104 transitions. Word has length 141 [2023-11-29 04:44:21,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:21,755 INFO L495 AbstractCegarLoop]: Abstraction has 388114 states and 673104 transitions. [2023-11-29 04:44:21,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 9.545454545454545) internal successors, (105), 9 states have internal predecessors, (105), 5 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (14), 6 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-29 04:44:21,756 INFO L276 IsEmpty]: Start isEmpty. Operand 388114 states and 673104 transitions. [2023-11-29 04:44:22,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:44:22,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:22,509 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:44:22,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 04:44:22,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 04:44:22,710 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:22,710 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:22,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1546092321, now seen corresponding path program 1 times [2023-11-29 04:44:22,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:22,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081548406] [2023-11-29 04:44:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:22,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:44:22,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:44:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:44:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:44:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:44:22,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:44:22,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:44:22,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:44:22,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:44:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:44:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 04:44:22,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 04:44:22,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 04:44:22,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:44:22,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:22,909 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 04:44:22,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:22,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081548406] [2023-11-29 04:44:22,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081548406] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:44:22,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544752612] [2023-11-29 04:44:22,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:22,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:44:22,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:44:22,912 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:44:22,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 04:44:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:23,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 1146 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 04:44:23,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:44:23,233 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-29 04:44:23,234 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:44:23,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544752612] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:23,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:44:23,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-11-29 04:44:23,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088307260] [2023-11-29 04:44:23,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:23,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 04:44:23,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:23,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 04:44:23,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-29 04:44:23,235 INFO L87 Difference]: Start difference. First operand 388114 states and 673104 transitions. Second operand has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:44:34,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:44:34,394 INFO L93 Difference]: Finished difference Result 388964 states and 674401 transitions. [2023-11-29 04:44:34,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 04:44:34,395 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 142 [2023-11-29 04:44:34,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:44:35,690 INFO L225 Difference]: With dead ends: 388964 [2023-11-29 04:44:35,690 INFO L226 Difference]: Without dead ends: 388124 [2023-11-29 04:44:36,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-11-29 04:44:36,001 INFO L413 NwaCegarLoop]: 426 mSDtfsCounter, 4 mSDsluCounter, 1265 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 04:44:36,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1691 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 04:44:36,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388124 states. [2023-11-29 04:44:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388124 to 388118. [2023-11-29 04:44:53,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388118 states, 327654 states have (on average 1.613174263094606) internal successors, (528563), 327297 states have internal predecessors, (528563), 60337 states have call successors, (60337), 115 states have call predecessors, (60337), 126 states have return successors, (84212), 60733 states have call predecessors, (84212), 60330 states have call successors, (84212) [2023-11-29 04:44:55,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388118 states to 388118 states and 673112 transitions. [2023-11-29 04:44:55,199 INFO L78 Accepts]: Start accepts. Automaton has 388118 states and 673112 transitions. Word has length 142 [2023-11-29 04:44:55,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 04:44:55,199 INFO L495 AbstractCegarLoop]: Abstraction has 388118 states and 673112 transitions. [2023-11-29 04:44:55,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 24.75) internal successors, (99), 5 states have internal predecessors, (99), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-11-29 04:44:55,200 INFO L276 IsEmpty]: Start isEmpty. Operand 388118 states and 673112 transitions. [2023-11-29 04:44:55,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-11-29 04:44:55,430 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 04:44:55,431 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2023-11-29 04:44:55,437 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 04:44:55,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 04:44:55,631 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION === [outgoingErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 04:44:55,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 04:44:55,632 INFO L85 PathProgramCache]: Analyzing trace with hash 1128695715, now seen corresponding path program 1 times [2023-11-29 04:44:55,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 04:44:55,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086804516] [2023-11-29 04:44:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:55,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 04:44:55,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 04:44:55,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-29 04:44:55,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-29 04:44:55,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-29 04:44:55,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-29 04:44:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-29 04:44:55,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 04:44:55,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-29 04:44:55,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 04:44:55,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2023-11-29 04:44:55,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 04:44:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 04:44:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2023-11-29 04:44:55,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 04:44:55,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:55,779 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 04:44:55,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 04:44:55,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086804516] [2023-11-29 04:44:55,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086804516] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 04:44:55,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726722573] [2023-11-29 04:44:55,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 04:44:55,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 04:44:55,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 04:44:55,781 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 04:44:55,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8bd4e10-aaaa-4ac7-8399-fd72608ac97b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 04:44:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 04:44:56,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 1143 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 04:44:56,060 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 04:44:56,223 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-29 04:44:56,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 04:44:56,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726722573] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 04:44:56,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 04:44:56,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2023-11-29 04:44:56,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761026157] [2023-11-29 04:44:56,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 04:44:56,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 04:44:56,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 04:44:56,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 04:44:56,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2023-11-29 04:44:56,226 INFO L87 Difference]: Start difference. First operand 388118 states and 673112 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2023-11-29 04:45:09,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 04:45:09,455 INFO L93 Difference]: Finished difference Result 389633 states and 675417 transitions. [2023-11-29 04:45:09,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 04:45:09,455 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 142 [2023-11-29 04:45:09,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 04:45:10,761 INFO L225 Difference]: With dead ends: 389633 [2023-11-29 04:45:10,762 INFO L226 Difference]: Without dead ends: 388885 [2023-11-29 04:45:10,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-11-29 04:45:10,866 INFO L413 NwaCegarLoop]: 399 mSDtfsCounter, 536 mSDsluCounter, 1238 mSDsCounter, 0 mSdLazyCounter, 1243 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 569 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 1354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 04:45:10,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [569 Valid, 1637 Invalid, 1354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1243 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 04:45:11,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388885 states.