./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/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_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 1c4309acb998a26f408a5a77bdd700985c40cebdb2b8a8c74b4449e908f8325f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 23:38:01,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 23:38:01,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-28 23:38:01,842 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 23:38:01,843 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 23:38:01,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 23:38:01,872 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 23:38:01,872 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 23:38:01,873 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 23:38:01,874 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 23:38:01,874 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 23:38:01,875 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 23:38:01,876 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 23:38:01,877 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 23:38:01,877 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 23:38:01,878 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 23:38:01,879 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-28 23:38:01,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 23:38:01,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 23:38:01,880 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-28 23:38:01,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 23:38:01,887 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-28 23:38:01,887 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-28 23:38:01,888 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 23:38:01,888 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-28 23:38:01,888 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 23:38:01,889 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 23:38:01,889 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 23:38:01,890 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 23:38:01,890 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 23:38:01,891 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:38:01,891 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 23:38:01,892 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 23:38:01,892 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-28 23:38:01,892 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 23:38:01,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 23:38:01,893 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 23:38:01,893 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 23:38:01,893 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-28 23:38:01,893 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 23:38:01,894 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 23:38:01,895 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_ce671936-dbde-4a5c-ace4-1ef691d7717b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1c4309acb998a26f408a5a77bdd700985c40cebdb2b8a8c74b4449e908f8325f [2023-11-28 23:38:02,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 23:38:02,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 23:38:02,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 23:38:02,177 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 23:38:02,177 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 23:38:02,178 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-28 23:38:05,059 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 23:38:05,429 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 23:38:05,429 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/sv-benchmarks/c/busybox-1.22.0/uniq-2.i [2023-11-28 23:38:05,459 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/data/0a7f29cbe/36da205600c9423a856dae08200e7725/FLAG2cf194c4c [2023-11-28 23:38:05,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/data/0a7f29cbe/36da205600c9423a856dae08200e7725 [2023-11-28 23:38:05,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 23:38:05,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 23:38:05,479 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 23:38:05,479 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 23:38:05,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 23:38:05,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a1e5ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:05, skipping insertion in model container [2023-11-28 23:38:05,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:38:05" (1/1) ... [2023-11-28 23:38:05,583 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 23:38:06,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:38:06,848 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 23:38:07,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 23:38:07,197 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:38:07,197 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:38:07,197 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:38:07,198 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:38:07,198 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:38:07,198 WARN L675 CHandler]: The function close is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:38:07,198 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 23:38:07,205 INFO L206 MainTranslator]: Completed translation [2023-11-28 23:38:07,205 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07 WrapperNode [2023-11-28 23:38:07,205 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 23:38:07,206 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 23:38:07,207 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 23:38:07,207 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 23:38:07,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,269 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,353 INFO L138 Inliner]: procedures = 600, calls = 440, calls flagged for inlining = 31, calls inlined = 30, statements flattened = 1898 [2023-11-28 23:38:07,354 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 23:38:07,355 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 23:38:07,355 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 23:38:07,355 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 23:38:07,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,379 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,464 INFO L175 MemorySlicer]: Split 292 memory accesses to 21 slices as follows [2, 17, 2, 54, 44, 33, 20, 3, 11, 29, 6, 6, 14, 7, 3, 16, 17, 1, 1, 3, 3]. 18 percent of accesses are in the largest equivalence class. The 43 initializations are split as follows [2, 0, 0, 17, 0, 0, 0, 3, 0, 0, 0, 0, 1, 0, 0, 16, 4, 0, 0, 0, 0]. The 83 writes are split as follows [0, 3, 1, 23, 12, 13, 3, 0, 4, 0, 3, 2, 6, 7, 0, 0, 4, 1, 1, 0, 0]. [2023-11-28 23:38:07,465 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,465 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,552 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,621 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,653 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,670 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 23:38:07,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 23:38:07,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 23:38:07,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 23:38:07,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (1/1) ... [2023-11-28 23:38:07,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 23:38:07,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:07,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 23:38:07,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 23:38:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure xopen [2023-11-28 23:38:07,802 INFO L138 BoogieDeclarations]: Found implementation of procedure xopen [2023-11-28 23:38:07,802 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-28 23:38:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#0 [2023-11-28 23:38:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#1 [2023-11-28 23:38:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#2 [2023-11-28 23:38:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#3 [2023-11-28 23:38:07,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#4 [2023-11-28 23:38:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#5 [2023-11-28 23:38:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#6 [2023-11-28 23:38:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#7 [2023-11-28 23:38:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#8 [2023-11-28 23:38:07,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#9 [2023-11-28 23:38:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#10 [2023-11-28 23:38:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#11 [2023-11-28 23:38:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#12 [2023-11-28 23:38:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#13 [2023-11-28 23:38:07,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#14 [2023-11-28 23:38:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#15 [2023-11-28 23:38:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#16 [2023-11-28 23:38:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#17 [2023-11-28 23:38:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#18 [2023-11-28 23:38:07,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#19 [2023-11-28 23:38:07,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc#20 [2023-11-28 23:38:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#0 [2023-11-28 23:38:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#1 [2023-11-28 23:38:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#2 [2023-11-28 23:38:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#3 [2023-11-28 23:38:07,807 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#4 [2023-11-28 23:38:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#5 [2023-11-28 23:38:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#6 [2023-11-28 23:38:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#7 [2023-11-28 23:38:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#8 [2023-11-28 23:38:07,808 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#9 [2023-11-28 23:38:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#10 [2023-11-28 23:38:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#11 [2023-11-28 23:38:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#12 [2023-11-28 23:38:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#13 [2023-11-28 23:38:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#14 [2023-11-28 23:38:07,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#15 [2023-11-28 23:38:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#16 [2023-11-28 23:38:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#17 [2023-11-28 23:38:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#18 [2023-11-28 23:38:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#19 [2023-11-28 23:38:07,810 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc#20 [2023-11-28 23:38:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure close [2023-11-28 23:38:07,810 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-28 23:38:07,811 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-28 23:38:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-28 23:38:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 23:38:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-28 23:38:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-28 23:38:07,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-28 23:38:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-28 23:38:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-28 23:38:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-28 23:38:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-28 23:38:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-28 23:38:07,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-28 23:38:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-28 23:38:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-28 23:38:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-28 23:38:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-28 23:38:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-28 23:38:07,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-28 23:38:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-28 23:38:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-28 23:38:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2023-11-28 23:38:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2023-11-28 23:38:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2023-11-28 23:38:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2023-11-28 23:38:07,814 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-28 23:38:07,815 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-28 23:38:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-28 23:38:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-28 23:38:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-28 23:38:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-28 23:38:07,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-28 23:38:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-28 23:38:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-28 23:38:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-28 23:38:07,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-28 23:38:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-28 23:38:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-28 23:38:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-28 23:38:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-28 23:38:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-28 23:38:07,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-28 23:38:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-28 23:38:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-28 23:38:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-28 23:38:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-28 23:38:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-28 23:38:07,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2023-11-28 23:38:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2023-11-28 23:38:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-28 23:38:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-28 23:38:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-28 23:38:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-28 23:38:07,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-28 23:38:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-28 23:38:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-28 23:38:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-28 23:38:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-28 23:38:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-28 23:38:07,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-28 23:38:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-28 23:38:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-28 23:38:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-28 23:38:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-28 23:38:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-28 23:38:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-28 23:38:07,821 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-28 23:38:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-28 23:38:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-28 23:38:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-28 23:38:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 23:38:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-28 23:38:07,822 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 23:38:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 23:38:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 23:38:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 23:38:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-28 23:38:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-28 23:38:07,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-28 23:38:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-28 23:38:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-28 23:38:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-28 23:38:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-28 23:38:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-28 23:38:07,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-28 23:38:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-28 23:38:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-28 23:38:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-28 23:38:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-28 23:38:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-28 23:38:07,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-28 23:38:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-28 23:38:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-28 23:38:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-28 23:38:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 23:38:07,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 23:38:07,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2023-11-28 23:38:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2023-11-28 23:38:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2023-11-28 23:38:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2023-11-28 23:38:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2023-11-28 23:38:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2023-11-28 23:38:07,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2023-11-28 23:38:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2023-11-28 23:38:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2023-11-28 23:38:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2023-11-28 23:38:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2023-11-28 23:38:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2023-11-28 23:38:07,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2023-11-28 23:38:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2023-11-28 23:38:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#14 [2023-11-28 23:38:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#15 [2023-11-28 23:38:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#16 [2023-11-28 23:38:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#17 [2023-11-28 23:38:07,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#18 [2023-11-28 23:38:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#19 [2023-11-28 23:38:07,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#20 [2023-11-28 23:38:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2023-11-28 23:38:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2023-11-28 23:38:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2023-11-28 23:38:07,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2023-11-28 23:38:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2023-11-28 23:38:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2023-11-28 23:38:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2023-11-28 23:38:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2023-11-28 23:38:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2023-11-28 23:38:07,831 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2023-11-28 23:38:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2023-11-28 23:38:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2023-11-28 23:38:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2023-11-28 23:38:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2023-11-28 23:38:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#14 [2023-11-28 23:38:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#15 [2023-11-28 23:38:07,832 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#16 [2023-11-28 23:38:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#17 [2023-11-28 23:38:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#18 [2023-11-28 23:38:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#19 [2023-11-28 23:38:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#20 [2023-11-28 23:38:07,833 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-28 23:38:07,833 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-28 23:38:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-28 23:38:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-28 23:38:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-28 23:38:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-28 23:38:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-28 23:38:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-28 23:38:07,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-28 23:38:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-28 23:38:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-28 23:38:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-28 23:38:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-28 23:38:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-28 23:38:07,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-28 23:38:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-28 23:38:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-28 23:38:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-28 23:38:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-28 23:38:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2023-11-28 23:38:07,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2023-11-28 23:38:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2023-11-28 23:38:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2023-11-28 23:38:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-28 23:38:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-28 23:38:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-28 23:38:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-28 23:38:07,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-28 23:38:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-28 23:38:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-28 23:38:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-28 23:38:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-28 23:38:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-28 23:38:07,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-28 23:38:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-28 23:38:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-28 23:38:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-28 23:38:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-28 23:38:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-28 23:38:07,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-28 23:38:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-28 23:38:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-28 23:38:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2023-11-28 23:38:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2023-11-28 23:38:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-28 23:38:07,840 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-28 23:38:07,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-28 23:38:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-28 23:38:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-28 23:38:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-28 23:38:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-28 23:38:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-28 23:38:07,841 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-28 23:38:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-28 23:38:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-28 23:38:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-11-28 23:38:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-11-28 23:38:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-11-28 23:38:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-11-28 23:38:07,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2023-11-28 23:38:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2023-11-28 23:38:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2023-11-28 23:38:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2023-11-28 23:38:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2023-11-28 23:38:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2023-11-28 23:38:07,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2023-11-28 23:38:07,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#20 [2023-11-28 23:38:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-28 23:38:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-28 23:38:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-28 23:38:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-28 23:38:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-28 23:38:07,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-28 23:38:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-28 23:38:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-28 23:38:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-28 23:38:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-11-28 23:38:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-11-28 23:38:07,845 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-11-28 23:38:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-11-28 23:38:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2023-11-28 23:38:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2023-11-28 23:38:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2023-11-28 23:38:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2023-11-28 23:38:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2023-11-28 23:38:07,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2023-11-28 23:38:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2023-11-28 23:38:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#20 [2023-11-28 23:38:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-28 23:38:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-28 23:38:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 23:38:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 23:38:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 23:38:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 23:38:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-28 23:38:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-28 23:38:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-28 23:38:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-28 23:38:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-28 23:38:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-28 23:38:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-28 23:38:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-28 23:38:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-28 23:38:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-28 23:38:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-28 23:38:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-28 23:38:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-28 23:38:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-28 23:38:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-28 23:38:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-28 23:38:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-28 23:38:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-28 23:38:07,850 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-28 23:38:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-28 23:38:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-28 23:38:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-28 23:38:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-28 23:38:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-28 23:38:07,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-28 23:38:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-28 23:38:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-28 23:38:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-28 23:38:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-28 23:38:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-28 23:38:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-28 23:38:07,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-28 23:38:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-28 23:38:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-28 23:38:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-28 23:38:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-28 23:38:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-28 23:38:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-28 23:38:07,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-28 23:38:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-28 23:38:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-28 23:38:07,854 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-28 23:38:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-28 23:38:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-28 23:38:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-28 23:38:07,854 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-28 23:38:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-28 23:38:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-28 23:38:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-28 23:38:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-28 23:38:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-28 23:38:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-28 23:38:07,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-28 23:38:07,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-28 23:38:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-28 23:38:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-28 23:38:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-28 23:38:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-28 23:38:07,857 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-28 23:38:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-28 23:38:07,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-28 23:38:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-28 23:38:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-28 23:38:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-28 23:38:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-28 23:38:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-28 23:38:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-28 23:38:07,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-28 23:38:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-28 23:38:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-28 23:38:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-28 23:38:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-28 23:38:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-28 23:38:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-28 23:38:07,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-28 23:38:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-28 23:38:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-28 23:38:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-28 23:38:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-28 23:38:07,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-28 23:38:08,521 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 23:38:08,550 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 23:38:10,737 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 23:38:10,832 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 23:38:10,832 INFO L309 CfgBuilder]: Removed 53 assume(true) statements. [2023-11-28 23:38:10,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:10 BoogieIcfgContainer [2023-11-28 23:38:10,834 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 23:38:10,836 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 23:38:10,837 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 23:38:10,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 23:38:10,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:38:05" (1/3) ... [2023-11-28 23:38:10,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6bc54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:38:10, skipping insertion in model container [2023-11-28 23:38:10,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:38:07" (2/3) ... [2023-11-28 23:38:10,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6bc54d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:38:10, skipping insertion in model container [2023-11-28 23:38:10,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:38:10" (3/3) ... [2023-11-28 23:38:10,844 INFO L112 eAbstractionObserver]: Analyzing ICFG uniq-2.i [2023-11-28 23:38:10,866 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 23:38:10,866 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 69 error locations. [2023-11-28 23:38:10,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 23:38:10,947 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;@1011245, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 23:38:10,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2023-11-28 23:38:10,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 452 states have (on average 1.7278761061946903) internal successors, (781), 523 states have internal predecessors, (781), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-28 23:38:10,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-28 23:38:10,964 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:10,964 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-28 23:38:10,965 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:10,971 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:10,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2450362, now seen corresponding path program 1 times [2023-11-28 23:38:11,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:11,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351522152] [2023-11-28 23:38:11,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:11,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:11,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:11,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:11,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:11,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351522152] [2023-11-28 23:38:11,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351522152] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:11,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:11,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-28 23:38:11,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598001757] [2023-11-28 23:38:11,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:11,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:38:11,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:11,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:38:11,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:11,520 INFO L87 Difference]: Start difference. First operand has 571 states, 452 states have (on average 1.7278761061946903) internal successors, (781), 523 states have internal predecessors, (781), 34 states have call successors, (34), 15 states have call predecessors, (34), 15 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:38:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:11,720 INFO L93 Difference]: Finished difference Result 1126 states and 1708 transitions. [2023-11-28 23:38:11,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:38:11,723 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2023-11-28 23:38:11,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:11,740 INFO L225 Difference]: With dead ends: 1126 [2023-11-28 23:38:11,740 INFO L226 Difference]: Without dead ends: 546 [2023-11-28 23:38:11,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:11,752 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 1 mSDsluCounter, 739 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:11,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1482 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:11,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2023-11-28 23:38:11,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 546. [2023-11-28 23:38:11,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 436 states have (on average 1.610091743119266) internal successors, (702), 508 states have internal predecessors, (702), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:11,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 760 transitions. [2023-11-28 23:38:11,843 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 760 transitions. Word has length 3 [2023-11-28 23:38:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:11,843 INFO L495 AbstractCegarLoop]: Abstraction has 546 states and 760 transitions. [2023-11-28 23:38:11,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:38:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 760 transitions. [2023-11-28 23:38:11,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-28 23:38:11,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:11,845 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-28 23:38:11,845 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-28 23:38:11,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:11,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:11,846 INFO L85 PathProgramCache]: Analyzing trace with hash -14786357, now seen corresponding path program 1 times [2023-11-28 23:38:11,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:11,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871870350] [2023-11-28 23:38:11,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:11,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:11,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:12,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:12,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:12,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871870350] [2023-11-28 23:38:12,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871870350] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:12,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016250746] [2023-11-28 23:38:12,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:12,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:12,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:12,039 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:12,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-28 23:38:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:12,519 INFO L262 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:38:12,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:12,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:12,564 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:12,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016250746] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:12,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:38:12,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-28 23:38:12,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389278759] [2023-11-28 23:38:12,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:12,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:12,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:12,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:12,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:12,568 INFO L87 Difference]: Start difference. First operand 546 states and 760 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:38:12,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:12,689 INFO L93 Difference]: Finished difference Result 546 states and 760 transitions. [2023-11-28 23:38:12,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:12,690 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-28 23:38:12,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:12,694 INFO L225 Difference]: With dead ends: 546 [2023-11-28 23:38:12,694 INFO L226 Difference]: Without dead ends: 545 [2023-11-28 23:38:12,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:12,696 INFO L413 NwaCegarLoop]: 721 mSDtfsCounter, 5 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:12,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1441 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:12,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2023-11-28 23:38:12,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2023-11-28 23:38:12,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 436 states have (on average 1.6077981651376148) internal successors, (701), 507 states have internal predecessors, (701), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:12,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 759 transitions. [2023-11-28 23:38:12,729 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 759 transitions. Word has length 6 [2023-11-28 23:38:12,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:12,729 INFO L495 AbstractCegarLoop]: Abstraction has 545 states and 759 transitions. [2023-11-28 23:38:12,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:38:12,729 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 759 transitions. [2023-11-28 23:38:12,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-28 23:38:12,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:12,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-28 23:38:12,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-28 23:38:12,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-28 23:38:12,931 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:12,931 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:12,931 INFO L85 PathProgramCache]: Analyzing trace with hash -458376137, now seen corresponding path program 1 times [2023-11-28 23:38:12,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:12,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343810418] [2023-11-28 23:38:12,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:12,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:12,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:13,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 23:38:13,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:13,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343810418] [2023-11-28 23:38:13,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343810418] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:13,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:13,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:38:13,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524007095] [2023-11-28 23:38:13,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:13,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:38:13,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:13,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:38:13,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:13,043 INFO L87 Difference]: Start difference. First operand 545 states and 759 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:38:13,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:13,155 INFO L93 Difference]: Finished difference Result 545 states and 759 transitions. [2023-11-28 23:38:13,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:38:13,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-28 23:38:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:13,160 INFO L225 Difference]: With dead ends: 545 [2023-11-28 23:38:13,160 INFO L226 Difference]: Without dead ends: 544 [2023-11-28 23:38:13,161 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:13,162 INFO L413 NwaCegarLoop]: 722 mSDtfsCounter, 0 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:13,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1442 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:13,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2023-11-28 23:38:13,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 542. [2023-11-28 23:38:13,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 434 states have (on average 1.608294930875576) internal successors, (698), 504 states have internal predecessors, (698), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:13,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 756 transitions. [2023-11-28 23:38:13,182 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 756 transitions. Word has length 7 [2023-11-28 23:38:13,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:13,183 INFO L495 AbstractCegarLoop]: Abstraction has 542 states and 756 transitions. [2023-11-28 23:38:13,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 23:38:13,183 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 756 transitions. [2023-11-28 23:38:13,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-28 23:38:13,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:13,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:13,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-28 23:38:13,184 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:13,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:13,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1555365206, now seen corresponding path program 1 times [2023-11-28 23:38:13,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:13,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228994447] [2023-11-28 23:38:13,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:13,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:38:13,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:13,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:13,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:13,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228994447] [2023-11-28 23:38:13,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228994447] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:13,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945025273] [2023-11-28 23:38:13,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:13,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:13,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:13,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:13,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-28 23:38:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:13,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 23:38:13,755 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:13,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-28 23:38:13,773 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:13,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945025273] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:13,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:38:13,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-28 23:38:13,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902573473] [2023-11-28 23:38:13,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:13,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:38:13,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:13,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:38:13,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:13,776 INFO L87 Difference]: Start difference. First operand 542 states and 756 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:13,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:13,915 INFO L93 Difference]: Finished difference Result 542 states and 756 transitions. [2023-11-28 23:38:13,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:38:13,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-28 23:38:13,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:13,921 INFO L225 Difference]: With dead ends: 542 [2023-11-28 23:38:13,921 INFO L226 Difference]: Without dead ends: 540 [2023-11-28 23:38:13,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:13,923 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 544 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 893 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:13,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 893 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:13,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-28 23:38:13,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 540. [2023-11-28 23:38:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 434 states have (on average 1.6036866359447004) internal successors, (696), 502 states have internal predecessors, (696), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:13,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 754 transitions. [2023-11-28 23:38:13,947 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 754 transitions. Word has length 12 [2023-11-28 23:38:13,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:13,949 INFO L495 AbstractCegarLoop]: Abstraction has 540 states and 754 transitions. [2023-11-28 23:38:13,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:13,949 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 754 transitions. [2023-11-28 23:38:13,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-28 23:38:13,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:13,950 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:13,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-28 23:38:14,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:14,151 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:14,151 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:14,151 INFO L85 PathProgramCache]: Analyzing trace with hash -971680191, now seen corresponding path program 1 times [2023-11-28 23:38:14,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:14,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670822910] [2023-11-28 23:38:14,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:14,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:14,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-28 23:38:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:14,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:14,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670822910] [2023-11-28 23:38:14,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670822910] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:14,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44997196] [2023-11-28 23:38:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:14,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:14,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:14,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:14,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-28 23:38:14,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:14,751 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:38:14,753 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:14,772 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:14,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [44997196] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:14,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:14,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-28 23:38:14,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899103851] [2023-11-28 23:38:14,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:14,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:38:14,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:14,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:38:14,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:14,812 INFO L87 Difference]: Start difference. First operand 540 states and 754 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:15,058 INFO L93 Difference]: Finished difference Result 1084 states and 1514 transitions. [2023-11-28 23:38:15,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:38:15,059 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-28 23:38:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:15,064 INFO L225 Difference]: With dead ends: 1084 [2023-11-28 23:38:15,064 INFO L226 Difference]: Without dead ends: 549 [2023-11-28 23:38:15,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:15,067 INFO L413 NwaCegarLoop]: 720 mSDtfsCounter, 4 mSDsluCounter, 2872 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3592 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:15,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3592 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:38:15,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2023-11-28 23:38:15,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 549. [2023-11-28 23:38:15,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 443 states have (on average 1.5914221218961626) internal successors, (705), 511 states have internal predecessors, (705), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 763 transitions. [2023-11-28 23:38:15,095 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 763 transitions. Word has length 13 [2023-11-28 23:38:15,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:15,096 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 763 transitions. [2023-11-28 23:38:15,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 763 transitions. [2023-11-28 23:38:15,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-28 23:38:15,097 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:15,097 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:15,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-28 23:38:15,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:15,298 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:15,299 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:15,299 INFO L85 PathProgramCache]: Analyzing trace with hash -443468878, now seen corresponding path program 2 times [2023-11-28 23:38:15,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:15,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760450358] [2023-11-28 23:38:15,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:15,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 23:38:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:15,607 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 23:38:15,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:15,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760450358] [2023-11-28 23:38:15,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760450358] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:15,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183513707] [2023-11-28 23:38:15,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:38:15,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:15,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:15,610 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:15,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-28 23:38:16,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:38:16,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:38:16,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:38:16,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:16,199 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 23:38:16,199 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:16,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183513707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:16,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:38:16,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-28 23:38:16,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183035960] [2023-11-28 23:38:16,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:16,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:38:16,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:16,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:38:16,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-28 23:38:16,202 INFO L87 Difference]: Start difference. First operand 549 states and 763 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:16,511 INFO L93 Difference]: Finished difference Result 549 states and 763 transitions. [2023-11-28 23:38:16,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:38:16,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2023-11-28 23:38:16,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:16,519 INFO L225 Difference]: With dead ends: 549 [2023-11-28 23:38:16,519 INFO L226 Difference]: Without dead ends: 547 [2023-11-28 23:38:16,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:38:16,521 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 543 mSDsluCounter, 1572 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:16,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 2278 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:38:16,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2023-11-28 23:38:16,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2023-11-28 23:38:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 443 states have (on average 1.5869074492099322) internal successors, (703), 509 states have internal predecessors, (703), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:16,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 761 transitions. [2023-11-28 23:38:16,551 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 761 transitions. Word has length 22 [2023-11-28 23:38:16,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:16,551 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 761 transitions. [2023-11-28 23:38:16,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:16,552 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 761 transitions. [2023-11-28 23:38:16,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-28 23:38:16,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:16,553 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:16,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-28 23:38:16,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:16,755 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:16,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:16,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1501348998, now seen corresponding path program 1 times [2023-11-28 23:38:16,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:16,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867931670] [2023-11-28 23:38:16,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:16,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:16,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:16,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 23:38:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:16,933 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 23:38:16,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:16,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867931670] [2023-11-28 23:38:16,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867931670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:16,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:16,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:38:16,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391289630] [2023-11-28 23:38:16,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:16,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:38:16,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:16,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:38:16,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:16,935 INFO L87 Difference]: Start difference. First operand 547 states and 761 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:17,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:17,065 INFO L93 Difference]: Finished difference Result 1077 states and 1506 transitions. [2023-11-28 23:38:17,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:38:17,066 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2023-11-28 23:38:17,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:17,071 INFO L225 Difference]: With dead ends: 1077 [2023-11-28 23:38:17,071 INFO L226 Difference]: Without dead ends: 550 [2023-11-28 23:38:17,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:17,073 INFO L413 NwaCegarLoop]: 718 mSDtfsCounter, 1 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1431 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:17,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1431 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:17,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-28 23:38:17,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-11-28 23:38:17,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 446 states have (on average 1.5829596412556053) internal successors, (706), 512 states have internal predecessors, (706), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:17,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 764 transitions. [2023-11-28 23:38:17,096 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 764 transitions. Word has length 27 [2023-11-28 23:38:17,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:17,096 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 764 transitions. [2023-11-28 23:38:17,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:17,097 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 764 transitions. [2023-11-28 23:38:17,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-28 23:38:17,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:17,098 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:17,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-28 23:38:17,099 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:17,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash -313885368, now seen corresponding path program 1 times [2023-11-28 23:38:17,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:17,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628778338] [2023-11-28 23:38:17,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:17,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:17,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:17,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 23:38:17,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:17,294 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 23:38:17,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:17,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628778338] [2023-11-28 23:38:17,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628778338] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:17,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:17,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:38:17,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270372685] [2023-11-28 23:38:17,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:17,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:38:17,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:17,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:38:17,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:17,297 INFO L87 Difference]: Start difference. First operand 550 states and 764 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:17,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:17,452 INFO L93 Difference]: Finished difference Result 824 states and 1177 transitions. [2023-11-28 23:38:17,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:38:17,453 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2023-11-28 23:38:17,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:17,459 INFO L225 Difference]: With dead ends: 824 [2023-11-28 23:38:17,459 INFO L226 Difference]: Without dead ends: 822 [2023-11-28 23:38:17,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:17,461 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 387 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:17,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1418 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:17,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2023-11-28 23:38:17,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 554. [2023-11-28 23:38:17,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 450 states have (on average 1.58) internal successors, (711), 516 states have internal predecessors, (711), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 769 transitions. [2023-11-28 23:38:17,489 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 769 transitions. Word has length 29 [2023-11-28 23:38:17,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:17,490 INFO L495 AbstractCegarLoop]: Abstraction has 554 states and 769 transitions. [2023-11-28 23:38:17,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:17,490 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 769 transitions. [2023-11-28 23:38:17,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-28 23:38:17,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:17,491 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:17,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-28 23:38:17,492 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:17,492 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:17,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1100464031, now seen corresponding path program 1 times [2023-11-28 23:38:17,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:17,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822636402] [2023-11-28 23:38:17,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:17,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:17,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:17,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-28 23:38:17,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:17,667 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-28 23:38:17,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:17,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822636402] [2023-11-28 23:38:17,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822636402] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:17,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [455597054] [2023-11-28 23:38:17,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:17,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:17,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:17,669 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:17,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-28 23:38:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:18,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:38:18,176 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:18,230 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 23:38:18,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-28 23:38:18,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [455597054] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:18,327 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:18,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-28 23:38:18,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425742301] [2023-11-28 23:38:18,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:18,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 23:38:18,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:18,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 23:38:18,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:38:18,330 INFO L87 Difference]: Start difference. First operand 554 states and 769 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:38:18,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:18,751 INFO L93 Difference]: Finished difference Result 1111 states and 1547 transitions. [2023-11-28 23:38:18,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 23:38:18,753 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-28 23:38:18,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:18,757 INFO L225 Difference]: With dead ends: 1111 [2023-11-28 23:38:18,757 INFO L226 Difference]: Without dead ends: 571 [2023-11-28 23:38:18,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:38:18,759 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 7 mSDsluCounter, 4970 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 5682 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:18,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 5682 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:38:18,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2023-11-28 23:38:18,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 571. [2023-11-28 23:38:18,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 571 states, 468 states have (on average 1.5555555555555556) internal successors, (728), 533 states have internal predecessors, (728), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:18,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 786 transitions. [2023-11-28 23:38:18,788 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 786 transitions. Word has length 30 [2023-11-28 23:38:18,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:18,789 INFO L495 AbstractCegarLoop]: Abstraction has 571 states and 786 transitions. [2023-11-28 23:38:18,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-28 23:38:18,789 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 786 transitions. [2023-11-28 23:38:18,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-28 23:38:18,791 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:18,791 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:18,799 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-28 23:38:18,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:18,995 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:18,996 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:18,996 INFO L85 PathProgramCache]: Analyzing trace with hash 255448739, now seen corresponding path program 1 times [2023-11-28 23:38:18,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:18,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419564942] [2023-11-28 23:38:18,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:18,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:19,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:19,210 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-28 23:38:19,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:19,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419564942] [2023-11-28 23:38:19,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419564942] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:19,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:19,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:38:19,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795508533] [2023-11-28 23:38:19,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:19,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:38:19,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:19,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:38:19,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:19,214 INFO L87 Difference]: Start difference. First operand 571 states and 786 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:19,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:19,331 INFO L93 Difference]: Finished difference Result 571 states and 786 transitions. [2023-11-28 23:38:19,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:38:19,332 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-28 23:38:19,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:19,337 INFO L225 Difference]: With dead ends: 571 [2023-11-28 23:38:19,337 INFO L226 Difference]: Without dead ends: 570 [2023-11-28 23:38:19,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:19,339 INFO L413 NwaCegarLoop]: 716 mSDtfsCounter, 0 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:19,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1429 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:19,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2023-11-28 23:38:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 568. [2023-11-28 23:38:19,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 568 states, 466 states have (on average 1.555793991416309) internal successors, (725), 530 states have internal predecessors, (725), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 568 states and 783 transitions. [2023-11-28 23:38:19,369 INFO L78 Accepts]: Start accepts. Automaton has 568 states and 783 transitions. Word has length 49 [2023-11-28 23:38:19,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:19,370 INFO L495 AbstractCegarLoop]: Abstraction has 568 states and 783 transitions. [2023-11-28 23:38:19,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:19,370 INFO L276 IsEmpty]: Start isEmpty. Operand 568 states and 783 transitions. [2023-11-28 23:38:19,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-28 23:38:19,372 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:19,372 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:19,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-28 23:38:19,372 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:19,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:19,373 INFO L85 PathProgramCache]: Analyzing trace with hash 255447010, now seen corresponding path program 1 times [2023-11-28 23:38:19,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:19,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257043546] [2023-11-28 23:38:19,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:19,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-28 23:38:19,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:19,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257043546] [2023-11-28 23:38:19,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257043546] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:19,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:19,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 23:38:19,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815312175] [2023-11-28 23:38:19,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:19,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 23:38:19,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:19,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 23:38:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:19,567 INFO L87 Difference]: Start difference. First operand 568 states and 783 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:19,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:19,726 INFO L93 Difference]: Finished difference Result 579 states and 796 transitions. [2023-11-28 23:38:19,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 23:38:19,727 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2023-11-28 23:38:19,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:19,732 INFO L225 Difference]: With dead ends: 579 [2023-11-28 23:38:19,732 INFO L226 Difference]: Without dead ends: 577 [2023-11-28 23:38:19,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 23:38:19,733 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 2 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1424 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:19,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1424 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:19,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2023-11-28 23:38:19,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 576. [2023-11-28 23:38:19,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 474 states have (on average 1.5506329113924051) internal successors, (735), 538 states have internal predecessors, (735), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:19,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 793 transitions. [2023-11-28 23:38:19,786 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 793 transitions. Word has length 49 [2023-11-28 23:38:19,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:19,787 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 793 transitions. [2023-11-28 23:38:19,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:19,787 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 793 transitions. [2023-11-28 23:38:19,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-28 23:38:19,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:19,788 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:19,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-28 23:38:19,789 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:19,789 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1640018433, now seen corresponding path program 1 times [2023-11-28 23:38:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:19,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718791177] [2023-11-28 23:38:19,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:19,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:20,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:20,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:20,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:20,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718791177] [2023-11-28 23:38:20,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718791177] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:20,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033122673] [2023-11-28 23:38:20,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:20,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:20,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:20,018 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:20,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-28 23:38:20,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:20,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 703 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:38:20,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:20,516 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:20,516 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:20,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033122673] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:20,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:38:20,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-28 23:38:20,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505983611] [2023-11-28 23:38:20,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:20,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:20,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:20,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:20,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:20,518 INFO L87 Difference]: Start difference. First operand 576 states and 793 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:20,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:20,758 INFO L93 Difference]: Finished difference Result 848 states and 1205 transitions. [2023-11-28 23:38:20,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:20,759 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2023-11-28 23:38:20,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:20,766 INFO L225 Difference]: With dead ends: 848 [2023-11-28 23:38:20,766 INFO L226 Difference]: Without dead ends: 847 [2023-11-28 23:38:20,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:20,767 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 774 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:20,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2145 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:38:20,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2023-11-28 23:38:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 575. [2023-11-28 23:38:20,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 474 states have (on average 1.5485232067510548) internal successors, (734), 537 states have internal predecessors, (734), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 792 transitions. [2023-11-28 23:38:20,803 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 792 transitions. Word has length 51 [2023-11-28 23:38:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:20,803 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 792 transitions. [2023-11-28 23:38:20,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 792 transitions. [2023-11-28 23:38:20,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-28 23:38:20,805 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:20,805 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:20,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-28 23:38:21,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:21,011 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:21,012 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:21,012 INFO L85 PathProgramCache]: Analyzing trace with hash -699035138, now seen corresponding path program 1 times [2023-11-28 23:38:21,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:21,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037131030] [2023-11-28 23:38:21,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:21,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:21,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:21,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:21,313 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:21,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:21,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037131030] [2023-11-28 23:38:21,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037131030] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:21,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075789181] [2023-11-28 23:38:21,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:21,314 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:21,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:21,316 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:21,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-28 23:38:21,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:21,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:38:21,816 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:21,838 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:21,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:21,869 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:21,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075789181] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:21,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:21,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-28 23:38:21,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635068330] [2023-11-28 23:38:21,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:21,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:38:21,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:21,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:38:21,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:21,872 INFO L87 Difference]: Start difference. First operand 575 states and 792 transitions. Second operand has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:22,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:22,243 INFO L93 Difference]: Finished difference Result 1660 states and 2434 transitions. [2023-11-28 23:38:22,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:38:22,244 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-28 23:38:22,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:22,254 INFO L225 Difference]: With dead ends: 1660 [2023-11-28 23:38:22,254 INFO L226 Difference]: Without dead ends: 1659 [2023-11-28 23:38:22,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:22,256 INFO L413 NwaCegarLoop]: 710 mSDtfsCounter, 1547 mSDsluCounter, 3903 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1579 SdHoareTripleChecker+Valid, 4613 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:22,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1579 Valid, 4613 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:38:22,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2023-11-28 23:38:22,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 587. [2023-11-28 23:38:22,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 486 states have (on average 1.5411522633744856) internal successors, (749), 549 states have internal predecessors, (749), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:22,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 807 transitions. [2023-11-28 23:38:22,291 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 807 transitions. Word has length 52 [2023-11-28 23:38:22,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:22,291 INFO L495 AbstractCegarLoop]: Abstraction has 587 states and 807 transitions. [2023-11-28 23:38:22,291 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.166666666666667) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:22,291 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 807 transitions. [2023-11-28 23:38:22,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-28 23:38:22,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:22,292 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:22,301 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-28 23:38:22,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:22,493 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:22,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:22,494 INFO L85 PathProgramCache]: Analyzing trace with hash -239927925, now seen corresponding path program 1 times [2023-11-28 23:38:22,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:22,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639863050] [2023-11-28 23:38:22,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:22,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:22,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:22,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:22,745 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-28 23:38:22,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:22,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639863050] [2023-11-28 23:38:22,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639863050] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:22,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573979032] [2023-11-28 23:38:22,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:22,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:22,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:22,748 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:22,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-28 23:38:23,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:23,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:38:23,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:23,339 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-28 23:38:23,339 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-28 23:38:23,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573979032] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:23,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:23,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-28 23:38:23,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292519388] [2023-11-28 23:38:23,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:23,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:38:23,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:23,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:38:23,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:23,362 INFO L87 Difference]: Start difference. First operand 587 states and 807 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:23,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:23,509 INFO L93 Difference]: Finished difference Result 1149 states and 1591 transitions. [2023-11-28 23:38:23,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:38:23,510 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-28 23:38:23,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:23,513 INFO L225 Difference]: With dead ends: 1149 [2023-11-28 23:38:23,513 INFO L226 Difference]: Without dead ends: 605 [2023-11-28 23:38:23,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:23,516 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 4 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2139 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:23,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2139 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:23,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-11-28 23:38:23,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 605. [2023-11-28 23:38:23,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 605 states, 504 states have (on average 1.5218253968253967) internal successors, (767), 567 states have internal predecessors, (767), 34 states have call successors, (34), 15 states have call predecessors, (34), 12 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-28 23:38:23,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 825 transitions. [2023-11-28 23:38:23,544 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 825 transitions. Word has length 57 [2023-11-28 23:38:23,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:23,545 INFO L495 AbstractCegarLoop]: Abstraction has 605 states and 825 transitions. [2023-11-28 23:38:23,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:23,545 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 825 transitions. [2023-11-28 23:38:23,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-28 23:38:23,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:23,546 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:23,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-28 23:38:23,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:23,747 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:23,748 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash -656558526, now seen corresponding path program 1 times [2023-11-28 23:38:23,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:23,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703793024] [2023-11-28 23:38:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:23,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:24,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:24,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 23:38:24,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:24,055 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:24,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:24,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703793024] [2023-11-28 23:38:24,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703793024] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:24,056 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:24,056 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:38:24,056 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777501220] [2023-11-28 23:38:24,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:24,056 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:24,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:24,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:24,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:24,058 INFO L87 Difference]: Start difference. First operand 605 states and 825 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:38:25,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:25,009 INFO L93 Difference]: Finished difference Result 1201 states and 1675 transitions. [2023-11-28 23:38:25,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:25,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 60 [2023-11-28 23:38:25,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:25,014 INFO L225 Difference]: With dead ends: 1201 [2023-11-28 23:38:25,014 INFO L226 Difference]: Without dead ends: 702 [2023-11-28 23:38:25,016 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:25,016 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 279 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 1566 SdHoareTripleChecker+Invalid, 570 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:25,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 1566 Invalid, 570 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 23:38:25,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2023-11-28 23:38:25,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 645. [2023-11-28 23:38:25,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 543 states have (on average 1.5119705340699816) internal successors, (821), 606 states have internal predecessors, (821), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:25,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 881 transitions. [2023-11-28 23:38:25,052 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 881 transitions. Word has length 60 [2023-11-28 23:38:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:25,053 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 881 transitions. [2023-11-28 23:38:25,053 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:38:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 881 transitions. [2023-11-28 23:38:25,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-28 23:38:25,054 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:25,054 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:25,055 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-28 23:38:25,055 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:25,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:25,055 INFO L85 PathProgramCache]: Analyzing trace with hash 407482119, now seen corresponding path program 1 times [2023-11-28 23:38:25,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:25,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962067631] [2023-11-28 23:38:25,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:25,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:25,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:25,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:25,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:25,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-28 23:38:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:25,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:25,294 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962067631] [2023-11-28 23:38:25,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962067631] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:25,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:25,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:38:25,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215861753] [2023-11-28 23:38:25,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:25,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:25,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:25,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:25,297 INFO L87 Difference]: Start difference. First operand 645 states and 881 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:26,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:26,035 INFO L93 Difference]: Finished difference Result 649 states and 884 transitions. [2023-11-28 23:38:26,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:26,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 62 [2023-11-28 23:38:26,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:26,039 INFO L225 Difference]: With dead ends: 649 [2023-11-28 23:38:26,039 INFO L226 Difference]: Without dead ends: 647 [2023-11-28 23:38:26,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:26,040 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 159 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 1590 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:26,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 1590 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-28 23:38:26,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2023-11-28 23:38:26,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 645. [2023-11-28 23:38:26,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 543 states have (on average 1.5082872928176796) internal successors, (819), 606 states have internal predecessors, (819), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 879 transitions. [2023-11-28 23:38:26,067 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 879 transitions. Word has length 62 [2023-11-28 23:38:26,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:26,068 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 879 transitions. [2023-11-28 23:38:26,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:26,068 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 879 transitions. [2023-11-28 23:38:26,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-28 23:38:26,069 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:26,069 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:26,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-28 23:38:26,069 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:26,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:26,070 INFO L85 PathProgramCache]: Analyzing trace with hash 627266963, now seen corresponding path program 2 times [2023-11-28 23:38:26,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:26,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795039514] [2023-11-28 23:38:26,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:26,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:26,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:26,376 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-28 23:38:26,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:26,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795039514] [2023-11-28 23:38:26,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795039514] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:26,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901623948] [2023-11-28 23:38:26,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:38:26,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:26,379 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:26,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-28 23:38:27,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-28 23:38:27,030 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:38:27,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 23:38:27,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:27,120 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-28 23:38:27,121 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:27,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901623948] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:27,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:38:27,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-28 23:38:27,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664633394] [2023-11-28 23:38:27,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:27,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-28 23:38:27,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:27,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-28 23:38:27,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:38:27,124 INFO L87 Difference]: Start difference. First operand 645 states and 879 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:27,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:27,499 INFO L93 Difference]: Finished difference Result 1216 states and 1678 transitions. [2023-11-28 23:38:27,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:38:27,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-28 23:38:27,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:27,503 INFO L225 Difference]: With dead ends: 1216 [2023-11-28 23:38:27,503 INFO L226 Difference]: Without dead ends: 645 [2023-11-28 23:38:27,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-28 23:38:27,505 INFO L413 NwaCegarLoop]: 700 mSDtfsCounter, 544 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 2945 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:27,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 2945 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-28 23:38:27,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-11-28 23:38:27,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 645. [2023-11-28 23:38:27,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 543 states have (on average 1.5064456721915285) internal successors, (818), 606 states have internal predecessors, (818), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:27,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 878 transitions. [2023-11-28 23:38:27,531 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 878 transitions. Word has length 64 [2023-11-28 23:38:27,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:27,532 INFO L495 AbstractCegarLoop]: Abstraction has 645 states and 878 transitions. [2023-11-28 23:38:27,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:27,532 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 878 transitions. [2023-11-28 23:38:27,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-28 23:38:27,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:27,533 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:27,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-28 23:38:27,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-28 23:38:27,735 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:27,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:27,736 INFO L85 PathProgramCache]: Analyzing trace with hash -631192135, now seen corresponding path program 2 times [2023-11-28 23:38:27,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:27,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287580183] [2023-11-28 23:38:27,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:27,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:27,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:28,122 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-28 23:38:28,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:28,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287580183] [2023-11-28 23:38:28,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287580183] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:28,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724514352] [2023-11-28 23:38:28,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:38:28,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:28,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:28,125 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:28,133 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-28 23:38:28,935 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:38:28,936 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:38:28,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:38:28,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-28 23:38:29,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:29,097 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-28 23:38:29,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724514352] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:29,098 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:29,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-28 23:38:29,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480116149] [2023-11-28 23:38:29,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:29,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 23:38:29,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:29,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 23:38:29,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:38:29,100 INFO L87 Difference]: Start difference. First operand 645 states and 878 transitions. Second operand has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:29,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:29,751 INFO L93 Difference]: Finished difference Result 1273 states and 1749 transitions. [2023-11-28 23:38:29,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 23:38:29,752 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-28 23:38:29,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:29,756 INFO L225 Difference]: With dead ends: 1273 [2023-11-28 23:38:29,756 INFO L226 Difference]: Without dead ends: 680 [2023-11-28 23:38:29,758 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-28 23:38:29,758 INFO L413 NwaCegarLoop]: 711 mSDtfsCounter, 11 mSDsluCounter, 4242 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4953 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:29,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4953 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:38:29,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2023-11-28 23:38:29,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2023-11-28 23:38:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 579 states have (on average 1.4732297063903281) internal successors, (853), 641 states have internal predecessors, (853), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:29,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 913 transitions. [2023-11-28 23:38:29,786 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 913 transitions. Word has length 75 [2023-11-28 23:38:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:29,787 INFO L495 AbstractCegarLoop]: Abstraction has 680 states and 913 transitions. [2023-11-28 23:38:29,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.714285714285714) internal successors, (66), 14 states have internal predecessors, (66), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:29,787 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 913 transitions. [2023-11-28 23:38:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-28 23:38:29,788 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:29,789 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:29,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-28 23:38:29,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-28 23:38:29,991 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:29,992 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:29,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1708177713, now seen corresponding path program 1 times [2023-11-28 23:38:29,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:29,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426708366] [2023-11-28 23:38:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:29,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:30,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:30,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:30,467 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:30,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:30,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426708366] [2023-11-28 23:38:30,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426708366] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:30,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585061994] [2023-11-28 23:38:30,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:30,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:30,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:30,470 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:30,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-28 23:38:31,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:31,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 976 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 23:38:31,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:31,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:31,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585061994] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:31,336 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:31,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-28 23:38:31,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193827549] [2023-11-28 23:38:31,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:31,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 23:38:31,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:31,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 23:38:31,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:38:31,338 INFO L87 Difference]: Start difference. First operand 680 states and 913 transitions. Second operand has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:32,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:32,026 INFO L93 Difference]: Finished difference Result 3785 states and 5549 transitions. [2023-11-28 23:38:32,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 23:38:32,027 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 99 [2023-11-28 23:38:32,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:32,048 INFO L225 Difference]: With dead ends: 3785 [2023-11-28 23:38:32,048 INFO L226 Difference]: Without dead ends: 3784 [2023-11-28 23:38:32,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-28 23:38:32,050 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 6096 mSDsluCounter, 6254 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6176 SdHoareTripleChecker+Valid, 6963 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:32,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6176 Valid, 6963 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 460 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-28 23:38:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3784 states. [2023-11-28 23:38:32,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3784 to 704. [2023-11-28 23:38:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 603 states have (on average 1.4643449419568824) internal successors, (883), 665 states have internal predecessors, (883), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:32,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 943 transitions. [2023-11-28 23:38:32,115 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 943 transitions. Word has length 99 [2023-11-28 23:38:32,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:32,116 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 943 transitions. [2023-11-28 23:38:32,116 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:32,116 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 943 transitions. [2023-11-28 23:38:32,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-28 23:38:32,117 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:32,117 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:32,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-28 23:38:32,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:32,318 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:32,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:32,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1595793451, now seen corresponding path program 1 times [2023-11-28 23:38:32,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:32,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781540920] [2023-11-28 23:38:32,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:32,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:32,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:32,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:32,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:32,553 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:32,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:32,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781540920] [2023-11-28 23:38:32,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781540920] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:32,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:32,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:38:32,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992459955] [2023-11-28 23:38:32,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:32,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:32,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:32,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:32,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:32,556 INFO L87 Difference]: Start difference. First operand 704 states and 943 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:33,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:33,206 INFO L93 Difference]: Finished difference Result 1223 states and 1696 transitions. [2023-11-28 23:38:33,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:33,207 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-28 23:38:33,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:33,211 INFO L225 Difference]: With dead ends: 1223 [2023-11-28 23:38:33,212 INFO L226 Difference]: Without dead ends: 779 [2023-11-28 23:38:33,213 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:33,213 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 273 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:33,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 1695 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:38:33,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2023-11-28 23:38:33,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 707. [2023-11-28 23:38:33,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 608 states have (on average 1.4588815789473684) internal successors, (887), 668 states have internal predecessors, (887), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:33,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 947 transitions. [2023-11-28 23:38:33,250 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 947 transitions. Word has length 104 [2023-11-28 23:38:33,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:33,251 INFO L495 AbstractCegarLoop]: Abstraction has 707 states and 947 transitions. [2023-11-28 23:38:33,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:33,251 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 947 transitions. [2023-11-28 23:38:33,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-11-28 23:38:33,252 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:33,252 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:33,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-28 23:38:33,253 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:33,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:33,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1596425942, now seen corresponding path program 1 times [2023-11-28 23:38:33,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:33,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802846931] [2023-11-28 23:38:33,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:33,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:33,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:33,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:33,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:33,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:33,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802846931] [2023-11-28 23:38:33,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802846931] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:33,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:33,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:38:33,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502715207] [2023-11-28 23:38:33,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:33,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:33,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:33,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:33,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:33,512 INFO L87 Difference]: Start difference. First operand 707 states and 947 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:34,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:34,167 INFO L93 Difference]: Finished difference Result 713 states and 956 transitions. [2023-11-28 23:38:34,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:34,168 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 104 [2023-11-28 23:38:34,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:34,171 INFO L225 Difference]: With dead ends: 713 [2023-11-28 23:38:34,172 INFO L226 Difference]: Without dead ends: 710 [2023-11-28 23:38:34,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:34,173 INFO L413 NwaCegarLoop]: 506 mSDtfsCounter, 498 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 1145 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:34,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 1145 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:38:34,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 710 states. [2023-11-28 23:38:34,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 710 to 704. [2023-11-28 23:38:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 704 states, 608 states have (on average 1.4539473684210527) internal successors, (884), 665 states have internal predecessors, (884), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:34,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 944 transitions. [2023-11-28 23:38:34,206 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 944 transitions. Word has length 104 [2023-11-28 23:38:34,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:34,207 INFO L495 AbstractCegarLoop]: Abstraction has 704 states and 944 transitions. [2023-11-28 23:38:34,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:34,207 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 944 transitions. [2023-11-28 23:38:34,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-28 23:38:34,208 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:34,209 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:34,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-28 23:38:34,209 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:34,209 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:34,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2070009345, now seen corresponding path program 1 times [2023-11-28 23:38:34,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:34,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889308570] [2023-11-28 23:38:34,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:34,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:34,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:34,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:34,435 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:34,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:34,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889308570] [2023-11-28 23:38:34,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889308570] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:34,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:34,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:38:34,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964044366] [2023-11-28 23:38:34,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:34,436 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:34,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:34,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:34,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:34,437 INFO L87 Difference]: Start difference. First operand 704 states and 944 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:35,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:35,079 INFO L93 Difference]: Finished difference Result 1229 states and 1704 transitions. [2023-11-28 23:38:35,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:35,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2023-11-28 23:38:35,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:35,084 INFO L225 Difference]: With dead ends: 1229 [2023-11-28 23:38:35,084 INFO L226 Difference]: Without dead ends: 781 [2023-11-28 23:38:35,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:35,085 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 393 mSDsluCounter, 913 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 583 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:35,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1504 Invalid, 583 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:38:35,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2023-11-28 23:38:35,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 689. [2023-11-28 23:38:35,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 689 states, 597 states have (on average 1.4472361809045227) internal successors, (864), 650 states have internal predecessors, (864), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:35,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 689 states to 689 states and 924 transitions. [2023-11-28 23:38:35,110 INFO L78 Accepts]: Start accepts. Automaton has 689 states and 924 transitions. Word has length 105 [2023-11-28 23:38:35,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:35,110 INFO L495 AbstractCegarLoop]: Abstraction has 689 states and 924 transitions. [2023-11-28 23:38:35,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:35,111 INFO L276 IsEmpty]: Start isEmpty. Operand 689 states and 924 transitions. [2023-11-28 23:38:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-28 23:38:35,112 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:35,112 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:35,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-28 23:38:35,112 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:35,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:35,112 INFO L85 PathProgramCache]: Analyzing trace with hash -2050402064, now seen corresponding path program 1 times [2023-11-28 23:38:35,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:35,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817462178] [2023-11-28 23:38:35,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:35,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:35,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:35,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:35,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:35,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:35,361 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:35,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:35,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817462178] [2023-11-28 23:38:35,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817462178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:35,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:35,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:38:35,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173435690] [2023-11-28 23:38:35,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:35,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:35,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:35,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:35,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:35,363 INFO L87 Difference]: Start difference. First operand 689 states and 924 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:36,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:36,029 INFO L93 Difference]: Finished difference Result 738 states and 998 transitions. [2023-11-28 23:38:36,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:36,029 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 105 [2023-11-28 23:38:36,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:36,032 INFO L225 Difference]: With dead ends: 738 [2023-11-28 23:38:36,032 INFO L226 Difference]: Without dead ends: 737 [2023-11-28 23:38:36,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:36,033 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 527 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 537 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 565 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 537 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:36,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1197 Invalid, 565 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 537 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-28 23:38:36,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 737 states. [2023-11-28 23:38:36,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 737 to 688. [2023-11-28 23:38:36,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 688 states, 597 states have (on average 1.4455611390284757) internal successors, (863), 649 states have internal predecessors, (863), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:36,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 688 states to 688 states and 923 transitions. [2023-11-28 23:38:36,068 INFO L78 Accepts]: Start accepts. Automaton has 688 states and 923 transitions. Word has length 105 [2023-11-28 23:38:36,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:36,068 INFO L495 AbstractCegarLoop]: Abstraction has 688 states and 923 transitions. [2023-11-28 23:38:36,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:36,069 INFO L276 IsEmpty]: Start isEmpty. Operand 688 states and 923 transitions. [2023-11-28 23:38:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-28 23:38:36,070 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:36,070 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:38:36,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-28 23:38:36,070 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:36,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:36,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1323498009, now seen corresponding path program 1 times [2023-11-28 23:38:36,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:36,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579613626] [2023-11-28 23:38:36,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:36,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:36,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:36,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:36,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:36,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:36,367 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:36,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:36,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579613626] [2023-11-28 23:38:36,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579613626] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:36,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133316345] [2023-11-28 23:38:36,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:36,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:36,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:36,369 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:36,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-28 23:38:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:37,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 1067 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 23:38:37,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:37,094 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:38:37,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 23:38:37,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133316345] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:37,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-28 23:38:37,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-28 23:38:37,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626561528] [2023-11-28 23:38:37,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:37,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:38:37,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:37,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:38:37,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:37,096 INFO L87 Difference]: Start difference. First operand 688 states and 923 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:38:37,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:37,382 INFO L93 Difference]: Finished difference Result 1257 states and 1733 transitions. [2023-11-28 23:38:37,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:38:37,383 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 106 [2023-11-28 23:38:37,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:37,386 INFO L225 Difference]: With dead ends: 1257 [2023-11-28 23:38:37,386 INFO L226 Difference]: Without dead ends: 760 [2023-11-28 23:38:37,387 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:37,388 INFO L413 NwaCegarLoop]: 756 mSDtfsCounter, 435 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:37,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 2448 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-28 23:38:37,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2023-11-28 23:38:37,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 687. [2023-11-28 23:38:37,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 598 states have (on average 1.4381270903010033) internal successors, (860), 648 states have internal predecessors, (860), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:37,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 920 transitions. [2023-11-28 23:38:37,421 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 920 transitions. Word has length 106 [2023-11-28 23:38:37,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:37,421 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 920 transitions. [2023-11-28 23:38:37,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 23:38:37,422 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 920 transitions. [2023-11-28 23:38:37,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-28 23:38:37,424 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:37,424 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:38:37,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-28 23:38:37,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:37,625 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:37,625 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:37,625 INFO L85 PathProgramCache]: Analyzing trace with hash 571300188, now seen corresponding path program 1 times [2023-11-28 23:38:37,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:37,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215978925] [2023-11-28 23:38:37,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:37,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:37,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:37,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:37,841 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-28 23:38:37,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:37,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215978925] [2023-11-28 23:38:37,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215978925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:37,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:37,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 23:38:37,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824979009] [2023-11-28 23:38:37,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:37,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 23:38:37,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:37,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 23:38:37,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:37,844 INFO L87 Difference]: Start difference. First operand 687 states and 920 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:38,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:38,361 INFO L93 Difference]: Finished difference Result 689 states and 923 transitions. [2023-11-28 23:38:38,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 23:38:38,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 108 [2023-11-28 23:38:38,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:38,365 INFO L225 Difference]: With dead ends: 689 [2023-11-28 23:38:38,365 INFO L226 Difference]: Without dead ends: 688 [2023-11-28 23:38:38,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 23:38:38,366 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 160 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1550 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:38,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1550 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-28 23:38:38,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2023-11-28 23:38:38,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 686. [2023-11-28 23:38:38,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 598 states have (on average 1.4364548494983278) internal successors, (859), 647 states have internal predecessors, (859), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 919 transitions. [2023-11-28 23:38:38,392 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 919 transitions. Word has length 108 [2023-11-28 23:38:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:38,392 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 919 transitions. [2023-11-28 23:38:38,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 919 transitions. [2023-11-28 23:38:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-28 23:38:38,394 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:38,394 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:38:38,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-28 23:38:38,394 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:38,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash 530437685, now seen corresponding path program 1 times [2023-11-28 23:38:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:38,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101882064] [2023-11-28 23:38:38,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:38,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:38,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:38,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:38,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:39,039 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:39,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:39,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101882064] [2023-11-28 23:38:39,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101882064] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 23:38:39,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 23:38:39,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-28 23:38:39,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942270092] [2023-11-28 23:38:39,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 23:38:39,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 23:38:39,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:39,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 23:38:39,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 23:38:39,042 INFO L87 Difference]: Start difference. First operand 686 states and 919 transitions. Second operand has 5 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:39,905 INFO L93 Difference]: Finished difference Result 1214 states and 1664 transitions. [2023-11-28 23:38:39,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-28 23:38:39,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 109 [2023-11-28 23:38:39,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:39,909 INFO L225 Difference]: With dead ends: 1214 [2023-11-28 23:38:39,909 INFO L226 Difference]: Without dead ends: 687 [2023-11-28 23:38:39,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:39,911 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 159 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 656 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 2093 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:39,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 2093 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 656 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:38:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states. [2023-11-28 23:38:39,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 687. [2023-11-28 23:38:39,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 687 states, 599 states have (on average 1.4357262103505843) internal successors, (860), 648 states have internal predecessors, (860), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 687 states to 687 states and 920 transitions. [2023-11-28 23:38:39,937 INFO L78 Accepts]: Start accepts. Automaton has 687 states and 920 transitions. Word has length 109 [2023-11-28 23:38:39,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:39,938 INFO L495 AbstractCegarLoop]: Abstraction has 687 states and 920 transitions. [2023-11-28 23:38:39,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 23:38:39,938 INFO L276 IsEmpty]: Start isEmpty. Operand 687 states and 920 transitions. [2023-11-28 23:38:39,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-28 23:38:39,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:39,939 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:38:39,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-28 23:38:39,939 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:39,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:39,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1762612628, now seen corresponding path program 1 times [2023-11-28 23:38:39,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:39,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502763906] [2023-11-28 23:38:39,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:39,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:40,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:40,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:40,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:40,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:40,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:40,553 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:40,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:40,553 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502763906] [2023-11-28 23:38:40,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502763906] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:40,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787769925] [2023-11-28 23:38:40,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:40,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:40,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:40,555 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:40,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-28 23:38:43,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:43,194 INFO L262 TraceCheckSpWp]: Trace formula consists of 1087 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 23:38:43,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:43,230 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:43,230 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:43,344 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:43,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787769925] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:43,344 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:43,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-11-28 23:38:43,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870500914] [2023-11-28 23:38:43,345 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:43,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-28 23:38:43,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:43,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-28 23:38:43,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-28 23:38:43,346 INFO L87 Difference]: Start difference. First operand 687 states and 920 transitions. Second operand has 11 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:38:44,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:44,960 INFO L93 Difference]: Finished difference Result 1218 states and 1670 transitions. [2023-11-28 23:38:44,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 23:38:44,961 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 110 [2023-11-28 23:38:44,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:44,964 INFO L225 Difference]: With dead ends: 1218 [2023-11-28 23:38:44,964 INFO L226 Difference]: Without dead ends: 690 [2023-11-28 23:38:44,965 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-28 23:38:44,965 INFO L413 NwaCegarLoop]: 548 mSDtfsCounter, 158 mSDsluCounter, 3137 mSDsCounter, 0 mSdLazyCounter, 1271 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 3685 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:44,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 3685 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1271 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-28 23:38:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2023-11-28 23:38:44,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 690. [2023-11-28 23:38:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 602 states have (on average 1.4335548172757475) internal successors, (863), 651 states have internal predecessors, (863), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:44,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 923 transitions. [2023-11-28 23:38:44,989 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 923 transitions. Word has length 110 [2023-11-28 23:38:44,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:44,989 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 923 transitions. [2023-11-28 23:38:44,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 6.625) internal successors, (53), 10 states have internal predecessors, (53), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:38:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 923 transitions. [2023-11-28 23:38:44,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-28 23:38:44,990 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:44,991 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 4, 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] [2023-11-28 23:38:45,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-28 23:38:45,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-28 23:38:45,191 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:45,191 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:45,192 INFO L85 PathProgramCache]: Analyzing trace with hash -942887947, now seen corresponding path program 2 times [2023-11-28 23:38:45,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:45,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907391401] [2023-11-28 23:38:45,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:45,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:45,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:45,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:45,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:45,789 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:45,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:45,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907391401] [2023-11-28 23:38:45,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907391401] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:45,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054436335] [2023-11-28 23:38:45,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:38:45,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:45,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:45,791 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:45,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-28 23:38:48,317 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:38:48,318 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:38:48,325 INFO L262 TraceCheckSpWp]: Trace formula consists of 1132 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-28 23:38:48,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:48,402 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:48,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:48,605 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:48,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054436335] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:48,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:48,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2023-11-28 23:38:48,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870302915] [2023-11-28 23:38:48,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:48,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 23:38:48,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:48,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 23:38:48,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2023-11-28 23:38:48,607 INFO L87 Difference]: Start difference. First operand 690 states and 923 transitions. Second operand has 20 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:38:51,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:51,277 INFO L93 Difference]: Finished difference Result 1224 states and 1679 transitions. [2023-11-28 23:38:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 23:38:51,277 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 113 [2023-11-28 23:38:51,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:51,280 INFO L225 Difference]: With dead ends: 1224 [2023-11-28 23:38:51,280 INFO L226 Difference]: Without dead ends: 696 [2023-11-28 23:38:51,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=224, Invalid=478, Unknown=0, NotChecked=0, Total=702 [2023-11-28 23:38:51,282 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 159 mSDsluCounter, 5809 mSDsCounter, 0 mSdLazyCounter, 2305 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 6358 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:51,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 6358 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 2305 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-28 23:38:51,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2023-11-28 23:38:51,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2023-11-28 23:38:51,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 696 states, 608 states have (on average 1.4292763157894737) internal successors, (869), 657 states have internal predecessors, (869), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:51,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 929 transitions. [2023-11-28 23:38:51,326 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 929 transitions. Word has length 113 [2023-11-28 23:38:51,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:51,327 INFO L495 AbstractCegarLoop]: Abstraction has 696 states and 929 transitions. [2023-11-28 23:38:51,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 19 states have internal predecessors, (62), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:38:51,327 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 929 transitions. [2023-11-28 23:38:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-28 23:38:51,328 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:51,328 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:38:51,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-28 23:38:51,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-28 23:38:51,529 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:51,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:51,529 INFO L85 PathProgramCache]: Analyzing trace with hash 505985076, now seen corresponding path program 1 times [2023-11-28 23:38:51,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:51,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095183036] [2023-11-28 23:38:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:51,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:51,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:51,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:51,779 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-28 23:38:51,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:51,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095183036] [2023-11-28 23:38:51,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095183036] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:51,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397674304] [2023-11-28 23:38:51,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:51,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:51,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:51,781 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:51,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-28 23:38:52,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:52,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 23:38:52,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:38:52,542 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-28 23:38:52,542 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:38:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-28 23:38:52,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397674304] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:38:52,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:38:52,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-28 23:38:52,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352886885] [2023-11-28 23:38:52,624 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:38:52,624 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-28 23:38:52,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:38:52,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-28 23:38:52,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:52,625 INFO L87 Difference]: Start difference. First operand 696 states and 929 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:52,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:38:52,790 INFO L93 Difference]: Finished difference Result 805 states and 1046 transitions. [2023-11-28 23:38:52,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 23:38:52,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2023-11-28 23:38:52,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:38:52,794 INFO L225 Difference]: With dead ends: 805 [2023-11-28 23:38:52,794 INFO L226 Difference]: Without dead ends: 804 [2023-11-28 23:38:52,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 222 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-28 23:38:52,795 INFO L413 NwaCegarLoop]: 699 mSDtfsCounter, 4 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:38:52,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2103 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-28 23:38:52,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2023-11-28 23:38:52,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 801. [2023-11-28 23:38:52,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 801 states, 713 states have (on average 1.3744740532959328) internal successors, (980), 762 states have internal predecessors, (980), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:38:52,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 801 states to 801 states and 1040 transitions. [2023-11-28 23:38:52,824 INFO L78 Accepts]: Start accepts. Automaton has 801 states and 1040 transitions. Word has length 112 [2023-11-28 23:38:52,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:38:52,824 INFO L495 AbstractCegarLoop]: Abstraction has 801 states and 1040 transitions. [2023-11-28 23:38:52,824 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:38:52,825 INFO L276 IsEmpty]: Start isEmpty. Operand 801 states and 1040 transitions. [2023-11-28 23:38:52,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2023-11-28 23:38:52,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:38:52,826 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:38:52,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-28 23:38:53,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-28 23:38:53,027 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:38:53,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:38:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash -344962923, now seen corresponding path program 3 times [2023-11-28 23:38:53,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:38:53,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691761775] [2023-11-28 23:38:53,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:38:53,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:38:53,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:53,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:38:53,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:53,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:38:53,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:38:54,022 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:38:54,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:38:54,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691761775] [2023-11-28 23:38:54,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691761775] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:38:54,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817821156] [2023-11-28 23:38:54,023 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 23:38:54,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:38:54,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:38:54,024 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:38:54,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-28 23:39:28,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-28 23:39:28,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:39:28,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 23:39:28,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:29,155 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:39:29,155 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:39:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:39:29,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817821156] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:39:29,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:39:29,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2023-11-28 23:39:29,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711515451] [2023-11-28 23:39:29,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:39:29,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-28 23:39:29,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:29,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-28 23:39:29,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1049, Unknown=0, NotChecked=0, Total=1406 [2023-11-28 23:39:29,817 INFO L87 Difference]: Start difference. First operand 801 states and 1040 transitions. Second operand has 38 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 37 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:39:42,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:42,464 INFO L93 Difference]: Finished difference Result 1341 states and 1808 transitions. [2023-11-28 23:39:42,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-28 23:39:42,465 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 37 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 119 [2023-11-28 23:39:42,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:42,468 INFO L225 Difference]: With dead ends: 1341 [2023-11-28 23:39:42,469 INFO L226 Difference]: Without dead ends: 813 [2023-11-28 23:39:42,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=806, Invalid=1744, Unknown=0, NotChecked=0, Total=2550 [2023-11-28 23:39:42,471 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 159 mSDsluCounter, 7942 mSDsCounter, 0 mSdLazyCounter, 3300 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 8491 SdHoareTripleChecker+Invalid, 3320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:42,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 8491 Invalid, 3320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3300 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2023-11-28 23:39:42,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 813 states. [2023-11-28 23:39:42,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 813 to 813. [2023-11-28 23:39:42,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 813 states, 725 states have (on average 1.3682758620689655) internal successors, (992), 774 states have internal predecessors, (992), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:39:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 813 states to 813 states and 1052 transitions. [2023-11-28 23:39:42,518 INFO L78 Accepts]: Start accepts. Automaton has 813 states and 1052 transitions. Word has length 119 [2023-11-28 23:39:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:42,519 INFO L495 AbstractCegarLoop]: Abstraction has 813 states and 1052 transitions. [2023-11-28 23:39:42,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 35 states have (on average 2.2857142857142856) internal successors, (80), 37 states have internal predecessors, (80), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:39:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 813 states and 1052 transitions. [2023-11-28 23:39:42,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2023-11-28 23:39:42,520 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:42,520 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 23:39:42,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-28 23:39:42,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:42,721 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:39:42,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:42,721 INFO L85 PathProgramCache]: Analyzing trace with hash -745278599, now seen corresponding path program 2 times [2023-11-28 23:39:42,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:42,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591988065] [2023-11-28 23:39:42,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:42,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:39:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:43,140 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:39:43,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:43,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591988065] [2023-11-28 23:39:43,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591988065] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:43,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043484280] [2023-11-28 23:39:43,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 23:39:43,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:43,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:43,142 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:43,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-28 23:39:43,969 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 23:39:43,969 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:39:43,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-28 23:39:43,979 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:39:44,042 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:39:44,042 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:39:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-28 23:39:44,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043484280] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:39:44,271 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:39:44,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-11-28 23:39:44,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696311343] [2023-11-28 23:39:44,271 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:39:44,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-28 23:39:44,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:39:44,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-28 23:39:44,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:39:44,273 INFO L87 Difference]: Start difference. First operand 813 states and 1052 transitions. Second operand has 25 states, 24 states have (on average 4.875) internal successors, (117), 25 states have internal predecessors, (117), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:39:46,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:39:46,445 INFO L93 Difference]: Finished difference Result 7242 states and 10716 transitions. [2023-11-28 23:39:46,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-28 23:39:46,445 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.875) internal successors, (117), 25 states have internal predecessors, (117), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2023-11-28 23:39:46,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:39:46,472 INFO L225 Difference]: With dead ends: 7242 [2023-11-28 23:39:46,472 INFO L226 Difference]: Without dead ends: 7241 [2023-11-28 23:39:46,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-11-28 23:39:46,474 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 16295 mSDsluCounter, 13359 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 139 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16471 SdHoareTripleChecker+Valid, 14055 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 139 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-28 23:39:46,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16471 Valid, 14055 Invalid, 1063 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [139 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-28 23:39:46,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7241 states. [2023-11-28 23:39:46,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7241 to 861. [2023-11-28 23:39:46,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 861 states, 773 states have (on average 1.3609314359637774) internal successors, (1052), 822 states have internal predecessors, (1052), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:39:46,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 861 states to 861 states and 1112 transitions. [2023-11-28 23:39:46,556 INFO L78 Accepts]: Start accepts. Automaton has 861 states and 1112 transitions. Word has length 123 [2023-11-28 23:39:46,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:39:46,557 INFO L495 AbstractCegarLoop]: Abstraction has 861 states and 1112 transitions. [2023-11-28 23:39:46,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.875) internal successors, (117), 25 states have internal predecessors, (117), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 23:39:46,557 INFO L276 IsEmpty]: Start isEmpty. Operand 861 states and 1112 transitions. [2023-11-28 23:39:46,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-11-28 23:39:46,558 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:39:46,558 INFO L195 NwaCegarLoop]: trace histogram [22, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:39:46,576 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-28 23:39:46,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-28 23:39:46,759 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:39:46,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:39:46,760 INFO L85 PathProgramCache]: Analyzing trace with hash -1781425707, now seen corresponding path program 4 times [2023-11-28 23:39:46,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:39:46,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136343075] [2023-11-28 23:39:46,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:39:46,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:39:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:47,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:39:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:47,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:39:47,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:39:48,747 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:39:48,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:39:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136343075] [2023-11-28 23:39:48,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136343075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:39:48,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330511837] [2023-11-28 23:39:48,748 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 23:39:48,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:39:48,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:39:48,749 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:39:48,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-28 23:40:21,688 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 23:40:21,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 23:40:21,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 1402 conjuncts, 49 conjunts are in the unsatisfiable core [2023-11-28 23:40:21,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 23:40:22,432 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:40:22,432 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 23:40:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:40:24,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330511837] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 23:40:24,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-28 23:40:24,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 26, 26] total 74 [2023-11-28 23:40:24,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695579475] [2023-11-28 23:40:24,621 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-28 23:40:24,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2023-11-28 23:40:24,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-28 23:40:24,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2023-11-28 23:40:24,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1293, Invalid=4109, Unknown=0, NotChecked=0, Total=5402 [2023-11-28 23:40:24,625 INFO L87 Difference]: Start difference. First operand 861 states and 1112 transitions. Second operand has 74 states, 71 states have (on average 1.6338028169014085) internal successors, (116), 73 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:44:06,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 23:44:06,361 INFO L93 Difference]: Finished difference Result 1413 states and 1904 transitions. [2023-11-28 23:44:06,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-28 23:44:06,361 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 71 states have (on average 1.6338028169014085) internal successors, (116), 73 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 131 [2023-11-28 23:44:06,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 23:44:06,363 INFO L225 Difference]: With dead ends: 1413 [2023-11-28 23:44:06,363 INFO L226 Difference]: Without dead ends: 885 [2023-11-28 23:44:06,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 219.5s TimeCoverageRelationStatistics Valid=3048, Invalid=6652, Unknown=2, NotChecked=0, Total=9702 [2023-11-28 23:44:06,367 INFO L413 NwaCegarLoop]: 549 mSDtfsCounter, 159 mSDsluCounter, 13804 mSDsCounter, 0 mSdLazyCounter, 6168 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 14353 SdHoareTripleChecker+Invalid, 6188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 6168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-28 23:44:06,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 14353 Invalid, 6188 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 6168 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-28 23:44:06,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-11-28 23:44:06,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 885. [2023-11-28 23:44:06,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 797 states have (on average 1.3500627352572145) internal successors, (1076), 846 states have internal predecessors, (1076), 35 states have call successors, (35), 15 states have call predecessors, (35), 12 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2023-11-28 23:44:06,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1136 transitions. [2023-11-28 23:44:06,408 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1136 transitions. Word has length 131 [2023-11-28 23:44:06,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 23:44:06,408 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1136 transitions. [2023-11-28 23:44:06,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 71 states have (on average 1.6338028169014085) internal successors, (116), 73 states have internal predecessors, (116), 1 states have call successors, (3), 2 states have call predecessors, (3), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-28 23:44:06,408 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1136 transitions. [2023-11-28 23:44:06,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2023-11-28 23:44:06,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 23:44:06,410 INFO L195 NwaCegarLoop]: trace histogram [46, 10, 10, 10, 10, 10, 10, 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] [2023-11-28 23:44:06,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-28 23:44:06,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2023-11-28 23:44:06,610 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2023-11-28 23:44:06,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 23:44:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash -128672683, now seen corresponding path program 5 times [2023-11-28 23:44:06,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-28 23:44:06,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803938209] [2023-11-28 23:44:06,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 23:44:06,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-28 23:44:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:08,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-28 23:44:08,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:08,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-28 23:44:08,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 23:44:11,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-28 23:44:11,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-28 23:44:11,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803938209] [2023-11-28 23:44:11,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803938209] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 23:44:11,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1977507473] [2023-11-28 23:44:11,107 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 23:44:11,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-28 23:44:11,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 23:44:11,108 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-28 23:44:11,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ce671936-dbde-4a5c-ace4-1ef691d7717b/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process