./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/expand-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/expand-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu --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 85240ddefe6af5bb0c110ef44a1b526a3f7bd308e67ba5f31a818269c346c14e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:50:27,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:50:27,627 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:50:27,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:50:27,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:50:27,657 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:50:27,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:50:27,662 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:50:27,663 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:50:27,664 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:50:27,666 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:50:27,667 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:50:27,668 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:50:27,670 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:50:27,671 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:50:27,672 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:50:27,673 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:50:27,677 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:50:27,678 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:50:27,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:50:27,679 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:50:27,680 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:50:27,681 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:50:27,681 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:50:27,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:50:27,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:50:27,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:50:27,684 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:27,684 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:50:27,685 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:50:27,686 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:50:27,687 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:50:27,687 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:50:27,688 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:50:27,688 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:50:27,688 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:50:27,689 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:50:27,689 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:50:27,689 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_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85240ddefe6af5bb0c110ef44a1b526a3f7bd308e67ba5f31a818269c346c14e [2023-11-19 07:50:28,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:50:28,057 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:50:28,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:50:28,061 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:50:28,062 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:50:28,063 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/expand-1.i [2023-11-19 07:50:31,088 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:50:31,722 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:50:31,723 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/sv-benchmarks/c/busybox-1.22.0/expand-1.i [2023-11-19 07:50:31,770 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/data/05014ea0a/3a21a4f3a644470b8462e7d5d0d1dffe/FLAGff8e4b274 [2023-11-19 07:50:31,798 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/data/05014ea0a/3a21a4f3a644470b8462e7d5d0d1dffe [2023-11-19 07:50:31,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:50:31,807 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:50:31,812 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:31,813 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:50:31,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:50:31,820 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:31" (1/1) ... [2023-11-19 07:50:31,821 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a5a18c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:31, skipping insertion in model container [2023-11-19 07:50:31,822 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:50:31" (1/1) ... [2023-11-19 07:50:31,909 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:50:33,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:33,972 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:50:34,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:50:34,481 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,482 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,482 WARN L675 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,482 WARN L675 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,482 WARN L675 CHandler]: The function clearerr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,482 WARN L675 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,483 WARN L675 CHandler]: The function fclose is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,483 WARN L675 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,483 WARN L675 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,483 WARN L675 CHandler]: The function fputs is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,483 WARN L675 CHandler]: The function strcspn is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,483 WARN L675 CHandler]: The function fgetc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:50:34,491 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:50:34,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34 WrapperNode [2023-11-19 07:50:34,492 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:50:34,494 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:34,494 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:50:34,494 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:50:34,502 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,676 INFO L138 Inliner]: procedures = 591, calls = 644, calls flagged for inlining = 37, calls inlined = 36, statements flattened = 2527 [2023-11-19 07:50:34,676 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:50:34,677 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:50:34,677 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:50:34,678 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:50:34,688 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,688 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,707 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,707 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,789 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,823 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,873 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:50:34,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:50:34,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:50:34,901 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:50:34,902 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (1/1) ... [2023-11-19 07:50:34,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:50:34,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:34,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:50:35,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:50:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure getopt32 [2023-11-19 07:50:35,046 INFO L138 BoogieDeclarations]: Found implementation of procedure getopt32 [2023-11-19 07:50:35,046 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-19 07:50:35,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_realloc [2023-11-19 07:50:35,047 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_realloc [2023-11-19 07:50:35,049 INFO L130 BoogieDeclarations]: Found specification of procedure xrealloc [2023-11-19 07:50:35,049 INFO L138 BoogieDeclarations]: Found implementation of procedure xrealloc [2023-11-19 07:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 07:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-19 07:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:50:35,050 INFO L130 BoogieDeclarations]: Found specification of procedure clearerr [2023-11-19 07:50:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:50:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-19 07:50:35,051 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-19 07:50:35,051 INFO L130 BoogieDeclarations]: Found specification of procedure fgetc [2023-11-19 07:50:35,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:50:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:50:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:50:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure fputs [2023-11-19 07:50:35,053 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:50:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:50:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:50:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:50:35,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:50:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-19 07:50:35,056 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-19 07:50:35,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:50:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:50:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-19 07:50:35,057 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-19 07:50:35,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:50:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:50:35,058 INFO L130 BoogieDeclarations]: Found specification of procedure bb_simple_perror_msg [2023-11-19 07:50:35,058 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_simple_perror_msg [2023-11-19 07:50:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure bb_perror_msg_and_die [2023-11-19 07:50:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_perror_msg_and_die [2023-11-19 07:50:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-19 07:50:35,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:50:35,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:50:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:50:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:50:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:50:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:50:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-19 07:50:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:50:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure fclose [2023-11-19 07:50:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure xatou_range [2023-11-19 07:50:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure xatou_range [2023-11-19 07:50:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure unicode_strwidth [2023-11-19 07:50:35,061 INFO L138 BoogieDeclarations]: Found implementation of procedure unicode_strwidth [2023-11-19 07:50:35,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:50:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc_fgets [2023-11-19 07:50:35,062 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc_fgets [2023-11-19 07:50:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2023-11-19 07:50:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-19 07:50:35,062 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-19 07:50:35,063 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-19 07:50:35,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:50:35,755 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:50:35,759 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:50:38,095 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:50:38,122 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:50:38,123 INFO L302 CfgBuilder]: Removed 45 assume(true) statements. [2023-11-19 07:50:38,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:38 BoogieIcfgContainer [2023-11-19 07:50:38,142 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:50:38,146 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:50:38,146 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:50:38,150 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:50:38,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:50:31" (1/3) ... [2023-11-19 07:50:38,152 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5927329d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:38, skipping insertion in model container [2023-11-19 07:50:38,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:50:34" (2/3) ... [2023-11-19 07:50:38,155 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5927329d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:50:38, skipping insertion in model container [2023-11-19 07:50:38,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:50:38" (3/3) ... [2023-11-19 07:50:38,157 INFO L112 eAbstractionObserver]: Analyzing ICFG expand-1.i [2023-11-19 07:50:38,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:50:38,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 84 error locations. [2023-11-19 07:50:38,300 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:50:38,309 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;@44bd48aa, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:50:38,309 INFO L358 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2023-11-19 07:50:38,321 INFO L276 IsEmpty]: Start isEmpty. Operand has 770 states, 627 states have (on average 1.6794258373205742) internal successors, (1053), 714 states have internal predecessors, (1053), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) [2023-11-19 07:50:38,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:50:38,329 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:38,330 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:50:38,330 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:38,336 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:38,336 INFO L85 PathProgramCache]: Analyzing trace with hash 57845381, now seen corresponding path program 1 times [2023-11-19 07:50:38,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:38,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533841709] [2023-11-19 07:50:38,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:38,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:38,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:39,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:39,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533841709] [2023-11-19 07:50:39,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533841709] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:39,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:39,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:39,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327357936] [2023-11-19 07:50:39,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:39,011 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:39,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:39,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:39,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:39,076 INFO L87 Difference]: Start difference. First operand has 770 states, 627 states have (on average 1.6794258373205742) internal successors, (1053), 714 states have internal predecessors, (1053), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (45), 45 states have call predecessors, (45), 45 states have call successors, (45) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:39,307 INFO L93 Difference]: Finished difference Result 1526 states and 2305 transitions. [2023-11-19 07:50:39,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:39,310 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 07:50:39,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:39,339 INFO L225 Difference]: With dead ends: 1526 [2023-11-19 07:50:39,339 INFO L226 Difference]: Without dead ends: 750 [2023-11-19 07:50:39,361 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 [2023-11-19 07:50:39,365 INFO L413 NwaCegarLoop]: 1049 mSDtfsCounter, 1 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:39,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2092 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:50:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2023-11-19 07:50:39,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2023-11-19 07:50:39,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 613 states have (on average 1.5774877650897228) internal successors, (967), 703 states have internal predecessors, (967), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:39,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 1041 transitions. [2023-11-19 07:50:39,493 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 1041 transitions. Word has length 4 [2023-11-19 07:50:39,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:39,494 INFO L495 AbstractCegarLoop]: Abstraction has 750 states and 1041 transitions. [2023-11-19 07:50:39,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 1041 transitions. [2023-11-19 07:50:39,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:50:39,505 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:39,505 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-19 07:50:39,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:50:39,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:39,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:39,506 INFO L85 PathProgramCache]: Analyzing trace with hash 991740260, now seen corresponding path program 1 times [2023-11-19 07:50:39,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:39,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421321846] [2023-11-19 07:50:39,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:39,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:39,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:39,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421321846] [2023-11-19 07:50:39,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421321846] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:39,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932362197] [2023-11-19 07:50:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:39,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:39,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:39,871 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:39,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:50:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:40,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 539 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:40,322 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:40,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:40,371 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:40,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1932362197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:40,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:40,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:50:40,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245715990] [2023-11-19 07:50:40,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:40,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:50:40,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:40,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:50:40,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:40,385 INFO L87 Difference]: Start difference. First operand 750 states and 1041 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2023-11-19 07:50:40,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:40,472 INFO L93 Difference]: Finished difference Result 750 states and 1041 transitions. [2023-11-19 07:50:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:50:40,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2023-11-19 07:50:40,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:40,482 INFO L225 Difference]: With dead ends: 750 [2023-11-19 07:50:40,482 INFO L226 Difference]: Without dead ends: 749 [2023-11-19 07:50:40,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:40,485 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 5 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 2062 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:40,485 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 2062 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:40,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2023-11-19 07:50:40,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 749. [2023-11-19 07:50:40,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 613 states have (on average 1.5758564437194127) internal successors, (966), 702 states have internal predecessors, (966), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:40,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1040 transitions. [2023-11-19 07:50:40,553 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1040 transitions. Word has length 7 [2023-11-19 07:50:40,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:40,553 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1040 transitions. [2023-11-19 07:50:40,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2023-11-19 07:50:40,554 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1040 transitions. [2023-11-19 07:50:40,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:50:40,554 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:40,555 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-19 07:50:40,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:40,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 07:50:40,769 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:40,769 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:40,769 INFO L85 PathProgramCache]: Analyzing trace with hash 679178882, now seen corresponding path program 1 times [2023-11-19 07:50:40,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:40,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177634409] [2023-11-19 07:50:40,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:40,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:50:41,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:41,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177634409] [2023-11-19 07:50:41,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177634409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:41,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:41,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:41,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962143412] [2023-11-19 07:50:41,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:41,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:41,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:41,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:41,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:41,026 INFO L87 Difference]: Start difference. First operand 749 states and 1040 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:41,069 INFO L93 Difference]: Finished difference Result 749 states and 1040 transitions. [2023-11-19 07:50:41,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:41,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:50:41,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:41,075 INFO L225 Difference]: With dead ends: 749 [2023-11-19 07:50:41,076 INFO L226 Difference]: Without dead ends: 748 [2023-11-19 07:50:41,076 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 [2023-11-19 07:50:41,078 INFO L413 NwaCegarLoop]: 1033 mSDtfsCounter, 0 mSDsluCounter, 1030 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:41,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2063 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:41,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2023-11-19 07:50:41,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 746. [2023-11-19 07:50:41,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 611 states have (on average 1.5761047463175122) internal successors, (963), 699 states have internal predecessors, (963), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:41,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1037 transitions. [2023-11-19 07:50:41,114 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1037 transitions. Word has length 8 [2023-11-19 07:50:41,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:41,114 INFO L495 AbstractCegarLoop]: Abstraction has 746 states and 1037 transitions. [2023-11-19 07:50:41,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:50:41,115 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1037 transitions. [2023-11-19 07:50:41,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:50:41,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:41,116 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:41,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:50:41,116 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:41,117 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:41,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1275305784, now seen corresponding path program 1 times [2023-11-19 07:50:41,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:41,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996854373] [2023-11-19 07:50:41,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:41,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:50:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:41,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:41,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996854373] [2023-11-19 07:50:41,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996854373] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:41,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589076473] [2023-11-19 07:50:41,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:41,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:41,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:41,402 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:41,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:50:41,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:41,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:50:41,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:41,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:50:41,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:41,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589076473] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:41,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:41,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:50:41,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962876343] [2023-11-19 07:50:41,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:41,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:41,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:41,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:41,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:41,780 INFO L87 Difference]: Start difference. First operand 746 states and 1037 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 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) [2023-11-19 07:50:41,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:41,840 INFO L93 Difference]: Finished difference Result 746 states and 1037 transitions. [2023-11-19 07:50:41,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:41,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2023-11-19 07:50:41,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:41,846 INFO L225 Difference]: With dead ends: 746 [2023-11-19 07:50:41,847 INFO L226 Difference]: Without dead ends: 744 [2023-11-19 07:50:41,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:41,850 INFO L413 NwaCegarLoop]: 1024 mSDtfsCounter, 160 mSDsluCounter, 862 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 1886 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:41,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 1886 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:41,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2023-11-19 07:50:41,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2023-11-19 07:50:41,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 744 states, 611 states have (on average 1.5728314238952537) internal successors, (961), 697 states have internal predecessors, (961), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:41,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1035 transitions. [2023-11-19 07:50:41,894 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1035 transitions. Word has length 13 [2023-11-19 07:50:41,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:41,896 INFO L495 AbstractCegarLoop]: Abstraction has 744 states and 1035 transitions. [2023-11-19 07:50:41,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-19 07:50:41,898 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1035 transitions. [2023-11-19 07:50:41,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:50:41,899 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:41,899 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:41,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:42,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:42,122 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:42,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:42,122 INFO L85 PathProgramCache]: Analyzing trace with hash 879775543, now seen corresponding path program 1 times [2023-11-19 07:50:42,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:42,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764175426] [2023-11-19 07:50:42,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:42,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:42,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:42,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:50:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:42,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:42,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764175426] [2023-11-19 07:50:42,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764175426] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:42,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887153324] [2023-11-19 07:50:42,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:42,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:42,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:42,364 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:42,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:50:42,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:42,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 557 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:42,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:42,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:42,757 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:42,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:42,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887153324] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:42,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:42,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:50:42,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253576406] [2023-11-19 07:50:42,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:42,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:42,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:42,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:42,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:42,799 INFO L87 Difference]: Start difference. First operand 744 states and 1035 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-19 07:50:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:42,887 INFO L93 Difference]: Finished difference Result 1491 states and 2075 transitions. [2023-11-19 07:50:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:42,888 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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 14 [2023-11-19 07:50:42,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:42,894 INFO L225 Difference]: With dead ends: 1491 [2023-11-19 07:50:42,894 INFO L226 Difference]: Without dead ends: 753 [2023-11-19 07:50:42,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:42,898 INFO L413 NwaCegarLoop]: 1031 mSDtfsCounter, 4 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:42,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2059 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:42,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2023-11-19 07:50:42,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 753. [2023-11-19 07:50:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 753 states, 620 states have (on average 1.564516129032258) internal successors, (970), 706 states have internal predecessors, (970), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 1044 transitions. [2023-11-19 07:50:42,929 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 1044 transitions. Word has length 14 [2023-11-19 07:50:42,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:42,930 INFO L495 AbstractCegarLoop]: Abstraction has 753 states and 1044 transitions. [2023-11-19 07:50:42,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 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) [2023-11-19 07:50:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 1044 transitions. [2023-11-19 07:50:42,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:50:42,931 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:42,931 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:42,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:43,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:43,157 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:43,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:43,157 INFO L85 PathProgramCache]: Analyzing trace with hash -932518986, now seen corresponding path program 2 times [2023-11-19 07:50:43,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:43,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802564108] [2023-11-19 07:50:43,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:43,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:50:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:43,625 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:50:43,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:43,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802564108] [2023-11-19 07:50:43,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802564108] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:43,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1443616214] [2023-11-19 07:50:43,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:50:43,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:43,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:43,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:43,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:50:44,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:50:44,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:50:44,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:50:44,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:44,093 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:50:44,094 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:44,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1443616214] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:44,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:44,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-19 07:50:44,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930389749] [2023-11-19 07:50:44,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:44,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:50:44,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:44,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:50:44,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:50:44,097 INFO L87 Difference]: Start difference. First operand 753 states and 1044 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-19 07:50:44,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:44,241 INFO L93 Difference]: Finished difference Result 753 states and 1044 transitions. [2023-11-19 07:50:44,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:50:44,242 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 23 [2023-11-19 07:50:44,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:44,249 INFO L225 Difference]: With dead ends: 753 [2023-11-19 07:50:44,250 INFO L226 Difference]: Without dead ends: 751 [2023-11-19 07:50:44,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:50:44,252 INFO L413 NwaCegarLoop]: 1019 mSDtfsCounter, 159 mSDsluCounter, 2884 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 3903 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:44,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 3903 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:50:44,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 751 states. [2023-11-19 07:50:44,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 751 to 751. [2023-11-19 07:50:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 620 states have (on average 1.5612903225806452) internal successors, (968), 704 states have internal predecessors, (968), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:44,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1042 transitions. [2023-11-19 07:50:44,294 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1042 transitions. Word has length 23 [2023-11-19 07:50:44,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:44,297 INFO L495 AbstractCegarLoop]: Abstraction has 751 states and 1042 transitions. [2023-11-19 07:50:44,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-19 07:50:44,298 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1042 transitions. [2023-11-19 07:50:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:50:44,299 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:44,299 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:44,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:44,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:44,514 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:44,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash -388380218, now seen corresponding path program 1 times [2023-11-19 07:50:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:44,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298443715] [2023-11-19 07:50:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:44,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:44,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:44,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:50:44,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:44,816 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:50:44,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:44,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298443715] [2023-11-19 07:50:44,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298443715] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:44,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:44,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:44,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102627810] [2023-11-19 07:50:44,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:44,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:44,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:44,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:44,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:44,844 INFO L87 Difference]: Start difference. First operand 751 states and 1042 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:50:44,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:44,933 INFO L93 Difference]: Finished difference Result 1484 states and 2067 transitions. [2023-11-19 07:50:44,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:44,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 28 [2023-11-19 07:50:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:44,941 INFO L225 Difference]: With dead ends: 1484 [2023-11-19 07:50:44,941 INFO L226 Difference]: Without dead ends: 754 [2023-11-19 07:50:44,945 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 [2023-11-19 07:50:44,946 INFO L413 NwaCegarLoop]: 1029 mSDtfsCounter, 1 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2052 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:44,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2052 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:44,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2023-11-19 07:50:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2023-11-19 07:50:44,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 754 states, 623 states have (on average 1.5585874799357946) internal successors, (971), 707 states have internal predecessors, (971), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:45,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1045 transitions. [2023-11-19 07:50:45,000 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1045 transitions. Word has length 28 [2023-11-19 07:50:45,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:45,001 INFO L495 AbstractCegarLoop]: Abstraction has 754 states and 1045 transitions. [2023-11-19 07:50:45,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-19 07:50:45,002 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1045 transitions. [2023-11-19 07:50:45,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:50:45,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:45,004 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, 1] [2023-11-19 07:50:45,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:50:45,005 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:45,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:45,006 INFO L85 PathProgramCache]: Analyzing trace with hash 408735333, now seen corresponding path program 1 times [2023-11-19 07:50:45,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:45,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949082862] [2023-11-19 07:50:45,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:45,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:45,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:45,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:50:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:45,310 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:50:45,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949082862] [2023-11-19 07:50:45,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949082862] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:45,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388151618] [2023-11-19 07:50:45,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:45,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:45,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:45,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:45,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:50:45,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:45,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:50:45,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:45,864 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:50:45,864 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:46,003 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:50:46,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388151618] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:46,004 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:46,004 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 07:50:46,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515100482] [2023-11-19 07:50:46,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:46,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:50:46,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:46,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:50:46,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:50:46,007 INFO L87 Difference]: Start difference. First operand 754 states and 1045 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2023-11-19 07:50:46,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:46,242 INFO L93 Difference]: Finished difference Result 1510 states and 2098 transitions. [2023-11-19 07:50:46,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:50:46,243 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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 31 [2023-11-19 07:50:46,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:46,250 INFO L225 Difference]: With dead ends: 1510 [2023-11-19 07:50:46,250 INFO L226 Difference]: Without dead ends: 771 [2023-11-19 07:50:46,253 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:50:46,255 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 7 mSDsluCounter, 5100 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6123 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:46,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6123 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:50:46,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2023-11-19 07:50:46,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2023-11-19 07:50:46,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 641 states have (on average 1.5413416536661466) internal successors, (988), 724 states have internal predecessors, (988), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:46,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1062 transitions. [2023-11-19 07:50:46,331 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1062 transitions. Word has length 31 [2023-11-19 07:50:46,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:46,331 INFO L495 AbstractCegarLoop]: Abstraction has 771 states and 1062 transitions. [2023-11-19 07:50:46,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 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) [2023-11-19 07:50:46,332 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1062 transitions. [2023-11-19 07:50:46,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:50:46,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:46,339 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] [2023-11-19 07:50:46,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:46,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:46,555 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:46,556 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:46,556 INFO L85 PathProgramCache]: Analyzing trace with hash -730028574, now seen corresponding path program 1 times [2023-11-19 07:50:46,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:46,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784439224] [2023-11-19 07:50:46,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:46,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:46,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:46,812 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:50:46,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:46,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784439224] [2023-11-19 07:50:46,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784439224] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:46,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:46,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:46,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336894110] [2023-11-19 07:50:46,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:46,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:46,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:46,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:46,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:46,817 INFO L87 Difference]: Start difference. First operand 771 states and 1062 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:50:46,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:46,874 INFO L93 Difference]: Finished difference Result 785 states and 1078 transitions. [2023-11-19 07:50:46,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:46,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-19 07:50:46,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:46,881 INFO L225 Difference]: With dead ends: 785 [2023-11-19 07:50:46,882 INFO L226 Difference]: Without dead ends: 783 [2023-11-19 07:50:46,882 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 [2023-11-19 07:50:46,885 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 3 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2047 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:46,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2047 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:46,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 783 states. [2023-11-19 07:50:46,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 783 to 781. [2023-11-19 07:50:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 781 states, 651 states have (on average 1.5376344086021505) internal successors, (1001), 734 states have internal predecessors, (1001), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:46,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 781 states to 781 states and 1075 transitions. [2023-11-19 07:50:46,917 INFO L78 Accepts]: Start accepts. Automaton has 781 states and 1075 transitions. Word has length 50 [2023-11-19 07:50:46,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:46,918 INFO L495 AbstractCegarLoop]: Abstraction has 781 states and 1075 transitions. [2023-11-19 07:50:46,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:50:46,919 INFO L276 IsEmpty]: Start isEmpty. Operand 781 states and 1075 transitions. [2023-11-19 07:50:46,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:50:46,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:46,924 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] [2023-11-19 07:50:46,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:50:46,924 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:46,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:46,926 INFO L85 PathProgramCache]: Analyzing trace with hash -730026845, now seen corresponding path program 1 times [2023-11-19 07:50:46,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:46,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126762607] [2023-11-19 07:50:46,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:46,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:46,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:47,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:47,126 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:50:47,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:47,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126762607] [2023-11-19 07:50:47,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126762607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:47,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:47,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:47,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878389250] [2023-11-19 07:50:47,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:47,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:47,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:47,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:47,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:47,130 INFO L87 Difference]: Start difference. First operand 781 states and 1075 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:50:47,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:47,171 INFO L93 Difference]: Finished difference Result 781 states and 1075 transitions. [2023-11-19 07:50:47,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:47,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-19 07:50:47,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:47,177 INFO L225 Difference]: With dead ends: 781 [2023-11-19 07:50:47,178 INFO L226 Difference]: Without dead ends: 780 [2023-11-19 07:50:47,178 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 [2023-11-19 07:50:47,179 INFO L413 NwaCegarLoop]: 1027 mSDtfsCounter, 0 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2050 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:47,180 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2050 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:47,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 780 states. [2023-11-19 07:50:47,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 780 to 776. [2023-11-19 07:50:47,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 776 states, 647 states have (on average 1.5378670788253477) internal successors, (995), 729 states have internal predecessors, (995), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:47,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 776 states to 776 states and 1069 transitions. [2023-11-19 07:50:47,217 INFO L78 Accepts]: Start accepts. Automaton has 776 states and 1069 transitions. Word has length 50 [2023-11-19 07:50:47,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:47,219 INFO L495 AbstractCegarLoop]: Abstraction has 776 states and 1069 transitions. [2023-11-19 07:50:47,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-19 07:50:47,219 INFO L276 IsEmpty]: Start isEmpty. Operand 776 states and 1069 transitions. [2023-11-19 07:50:47,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 07:50:47,221 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:47,221 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] [2023-11-19 07:50:47,221 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:50:47,222 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting getopt32Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:47,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:47,222 INFO L85 PathProgramCache]: Analyzing trace with hash -656438332, now seen corresponding path program 1 times [2023-11-19 07:50:47,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:47,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720199359] [2023-11-19 07:50:47,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:47,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:47,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:47,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:47,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:47,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720199359] [2023-11-19 07:50:47,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720199359] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:47,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:47,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:50:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846696213] [2023-11-19 07:50:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:47,482 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:50:47,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:50:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:50:47,483 INFO L87 Difference]: Start difference. First operand 776 states and 1069 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:47,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:47,548 INFO L93 Difference]: Finished difference Result 1035 states and 1455 transitions. [2023-11-19 07:50:47,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:50:47,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2023-11-19 07:50:47,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:47,557 INFO L225 Difference]: With dead ends: 1035 [2023-11-19 07:50:47,557 INFO L226 Difference]: Without dead ends: 1033 [2023-11-19 07:50:47,558 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 [2023-11-19 07:50:47,558 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 361 mSDsluCounter, 1015 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 2037 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:47,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 2037 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:47,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2023-11-19 07:50:47,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 780. [2023-11-19 07:50:47,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 780 states, 651 states have (on average 1.5360983102918586) internal successors, (1000), 733 states have internal predecessors, (1000), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 780 states to 780 states and 1074 transitions. [2023-11-19 07:50:47,594 INFO L78 Accepts]: Start accepts. Automaton has 780 states and 1074 transitions. Word has length 53 [2023-11-19 07:50:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:47,595 INFO L495 AbstractCegarLoop]: Abstraction has 780 states and 1074 transitions. [2023-11-19 07:50:47,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 780 states and 1074 transitions. [2023-11-19 07:50:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-19 07:50:47,596 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:47,596 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:47,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:50:47,597 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting getopt32Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:47,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:47,597 INFO L85 PathProgramCache]: Analyzing trace with hash 67576413, now seen corresponding path program 1 times [2023-11-19 07:50:47,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:47,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764344250] [2023-11-19 07:50:47,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:47,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:47,885 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:47,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:47,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764344250] [2023-11-19 07:50:47,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764344250] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:47,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648991379] [2023-11-19 07:50:47,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:47,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:47,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:47,888 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:47,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:50:48,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:48,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:48,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:48,406 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:48,406 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:48,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648991379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:48,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:48,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:50:48,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219671856] [2023-11-19 07:50:48,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:48,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:50:48,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:48,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:50:48,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:48,409 INFO L87 Difference]: Start difference. First operand 780 states and 1074 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:48,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:48,498 INFO L93 Difference]: Finished difference Result 1038 states and 1460 transitions. [2023-11-19 07:50:48,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:50:48,499 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 57 [2023-11-19 07:50:48,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:48,506 INFO L225 Difference]: With dead ends: 1038 [2023-11-19 07:50:48,506 INFO L226 Difference]: Without dead ends: 1037 [2023-11-19 07:50:48,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:50:48,508 INFO L413 NwaCegarLoop]: 1396 mSDtfsCounter, 723 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 2419 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:48,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 2419 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:48,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2023-11-19 07:50:48,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 779. [2023-11-19 07:50:48,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 651 states have (on average 1.5345622119815667) internal successors, (999), 732 states have internal predecessors, (999), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:48,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1073 transitions. [2023-11-19 07:50:48,541 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1073 transitions. Word has length 57 [2023-11-19 07:50:48,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:48,542 INFO L495 AbstractCegarLoop]: Abstraction has 779 states and 1073 transitions. [2023-11-19 07:50:48,542 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:48,542 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1073 transitions. [2023-11-19 07:50:48,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:50:48,543 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:48,543 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:48,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:48,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:48,765 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting getopt32Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:48,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:48,766 INFO L85 PathProgramCache]: Analyzing trace with hash 2094869406, now seen corresponding path program 1 times [2023-11-19 07:50:48,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:48,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297668954] [2023-11-19 07:50:48,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:48,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:48,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:48,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:48,992 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:48,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:48,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297668954] [2023-11-19 07:50:48,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297668954] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:48,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818252169] [2023-11-19 07:50:48,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:48,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:48,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:48,994 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:49,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:50:49,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:49,472 INFO L262 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:49,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:49,497 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:49,526 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:49,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818252169] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:49,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:49,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:50:49,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639984224] [2023-11-19 07:50:49,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:49,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:49,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:49,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:49,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:49,529 INFO L87 Difference]: Start difference. First operand 779 states and 1073 transitions. Second operand has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:49,794 INFO L93 Difference]: Finished difference Result 1804 states and 2607 transitions. [2023-11-19 07:50:49,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:49,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-19 07:50:49,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:49,807 INFO L225 Difference]: With dead ends: 1804 [2023-11-19 07:50:49,808 INFO L226 Difference]: Without dead ends: 1803 [2023-11-19 07:50:49,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:49,810 INFO L413 NwaCegarLoop]: 1021 mSDtfsCounter, 1742 mSDsluCounter, 4193 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1774 SdHoareTripleChecker+Valid, 5214 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:49,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1774 Valid, 5214 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:50:49,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1803 states. [2023-11-19 07:50:49,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1803 to 791. [2023-11-19 07:50:49,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 663 states have (on average 1.5294117647058822) internal successors, (1014), 744 states have internal predecessors, (1014), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:49,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1088 transitions. [2023-11-19 07:50:49,870 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1088 transitions. Word has length 58 [2023-11-19 07:50:49,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:49,874 INFO L495 AbstractCegarLoop]: Abstraction has 791 states and 1088 transitions. [2023-11-19 07:50:49,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.0) internal successors, (42), 7 states have internal predecessors, (42), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:49,874 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1088 transitions. [2023-11-19 07:50:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:50:49,875 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:49,876 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, 1] [2023-11-19 07:50:49,902 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-19 07:50:50,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:50,092 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:50,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:50,093 INFO L85 PathProgramCache]: Analyzing trace with hash -1938229877, now seen corresponding path program 1 times [2023-11-19 07:50:50,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:50,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256406537] [2023-11-19 07:50:50,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:50,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:50,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:50,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:50,396 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:50:50,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:50,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256406537] [2023-11-19 07:50:50,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256406537] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:50,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1769343801] [2023-11-19 07:50:50,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:50,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:50,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:50,399 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:50,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:50:50,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:50,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:50:50,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:50:50,949 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:50:50,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1769343801] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:50,975 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:50,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:50:50,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032294474] [2023-11-19 07:50:50,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:50,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:50:50,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:50,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:50:50,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:50,977 INFO L87 Difference]: Start difference. First operand 791 states and 1088 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) 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) [2023-11-19 07:50:51,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:51,075 INFO L93 Difference]: Finished difference Result 1556 states and 2152 transitions. [2023-11-19 07:50:51,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:51,076 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) 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 58 [2023-11-19 07:50:51,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:51,081 INFO L225 Difference]: With dead ends: 1556 [2023-11-19 07:50:51,082 INFO L226 Difference]: Without dead ends: 809 [2023-11-19 07:50:51,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:50:51,086 INFO L413 NwaCegarLoop]: 1026 mSDtfsCounter, 4 mSDsluCounter, 4088 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5114 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:51,086 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5114 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:50:51,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2023-11-19 07:50:51,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2023-11-19 07:50:51,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 681 states have (on average 1.5154185022026432) internal successors, (1032), 762 states have internal predecessors, (1032), 41 states have call successors, (41), 14 states have call predecessors, (41), 12 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2023-11-19 07:50:51,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1106 transitions. [2023-11-19 07:50:51,181 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1106 transitions. Word has length 58 [2023-11-19 07:50:51,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:51,181 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1106 transitions. [2023-11-19 07:50:51,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) 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) [2023-11-19 07:50:51,182 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1106 transitions. [2023-11-19 07:50:51,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-19 07:50:51,183 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:51,183 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, 1, 1, 1, 1, 1] [2023-11-19 07:50:51,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:51,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-19 07:50:51,409 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting getopt32Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:51,409 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:51,409 INFO L85 PathProgramCache]: Analyzing trace with hash -286813346, now seen corresponding path program 1 times [2023-11-19 07:50:51,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:51,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711198379] [2023-11-19 07:50:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:51,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:51,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:51,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:50:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:51,741 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:51,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:51,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711198379] [2023-11-19 07:50:51,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711198379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:51,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:51,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:50:51,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748675371] [2023-11-19 07:50:51,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:51,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:50:51,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:51,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:50:51,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:50:51,744 INFO L87 Difference]: Start difference. First operand 809 states and 1106 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:50:52,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:52,965 INFO L93 Difference]: Finished difference Result 1922 states and 2713 transitions. [2023-11-19 07:50:52,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:50:52,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2023-11-19 07:50:52,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:52,976 INFO L225 Difference]: With dead ends: 1922 [2023-11-19 07:50:52,976 INFO L226 Difference]: Without dead ends: 1237 [2023-11-19 07:50:52,981 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 [2023-11-19 07:50:52,981 INFO L413 NwaCegarLoop]: 933 mSDtfsCounter, 735 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 2560 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:52,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [741 Valid, 2560 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-19 07:50:52,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2023-11-19 07:50:53,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 850. [2023-11-19 07:50:53,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 721 states have (on average 1.507628294036061) internal successors, (1087), 802 states have internal predecessors, (1087), 42 states have call successors, (42), 14 states have call predecessors, (42), 12 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:50:53,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1163 transitions. [2023-11-19 07:50:53,039 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1163 transitions. Word has length 67 [2023-11-19 07:50:53,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:53,040 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1163 transitions. [2023-11-19 07:50:53,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:50:53,041 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1163 transitions. [2023-11-19 07:50:53,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-19 07:50:53,043 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:53,043 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:53,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:50:53,044 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting getopt32Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:53,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:53,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1610109147, now seen corresponding path program 1 times [2023-11-19 07:50:53,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:53,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92440541] [2023-11-19 07:50:53,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:53,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:53,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:53,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:53,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:53,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-11-19 07:50:53,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:53,355 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:53,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:53,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92440541] [2023-11-19 07:50:53,356 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92440541] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:53,356 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:50:53,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:50:53,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162969284] [2023-11-19 07:50:53,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:53,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:50:53,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:53,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:50:53,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:50:53,358 INFO L87 Difference]: Start difference. First operand 850 states and 1163 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:50:54,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:54,453 INFO L93 Difference]: Finished difference Result 1133 states and 1591 transitions. [2023-11-19 07:50:54,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:50:54,455 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2023-11-19 07:50:54,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:54,464 INFO L225 Difference]: With dead ends: 1133 [2023-11-19 07:50:54,464 INFO L226 Difference]: Without dead ends: 1131 [2023-11-19 07:50:54,465 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 [2023-11-19 07:50:54,466 INFO L413 NwaCegarLoop]: 977 mSDtfsCounter, 450 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 2639 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:54,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 2639 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:50:54,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2023-11-19 07:50:54,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 850. [2023-11-19 07:50:54,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 721 states have (on average 1.5048543689320388) internal successors, (1085), 802 states have internal predecessors, (1085), 42 states have call successors, (42), 14 states have call predecessors, (42), 12 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:50:54,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1161 transitions. [2023-11-19 07:50:54,525 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1161 transitions. Word has length 69 [2023-11-19 07:50:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:54,526 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1161 transitions. [2023-11-19 07:50:54,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:50:54,526 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1161 transitions. [2023-11-19 07:50:54,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-19 07:50:54,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:54,532 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:54,532 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:50:54,532 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting getopt32Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:54,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:54,533 INFO L85 PathProgramCache]: Analyzing trace with hash 82328627, now seen corresponding path program 2 times [2023-11-19 07:50:54,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:54,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020651414] [2023-11-19 07:50:54,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:54,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:54,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:54,996 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-19 07:50:54,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:54,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020651414] [2023-11-19 07:50:54,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020651414] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:54,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544057480] [2023-11-19 07:50:54,997 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:50:54,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:54,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:54,999 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:55,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:50:55,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:50:55,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:50:55,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 07:50:55,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-19 07:50:55,626 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:50:55,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544057480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:50:55,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:50:55,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-19 07:50:55,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803419715] [2023-11-19 07:50:55,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:50:55,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:50:55,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:55,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:50:55,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:50:55,630 INFO L87 Difference]: Start difference. First operand 850 states and 1161 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:55,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:55,809 INFO L93 Difference]: Finished difference Result 1625 states and 2241 transitions. [2023-11-19 07:50:55,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:50:55,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 70 [2023-11-19 07:50:55,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:55,816 INFO L225 Difference]: With dead ends: 1625 [2023-11-19 07:50:55,816 INFO L226 Difference]: Without dead ends: 850 [2023-11-19 07:50:55,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-19 07:50:55,820 INFO L413 NwaCegarLoop]: 1013 mSDtfsCounter, 161 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:55,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 4884 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:50:55,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2023-11-19 07:50:55,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2023-11-19 07:50:55,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 721 states have (on average 1.5034674063800277) internal successors, (1084), 802 states have internal predecessors, (1084), 42 states have call successors, (42), 14 states have call predecessors, (42), 12 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:50:55,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1160 transitions. [2023-11-19 07:50:55,858 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1160 transitions. Word has length 70 [2023-11-19 07:50:55,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:55,859 INFO L495 AbstractCegarLoop]: Abstraction has 850 states and 1160 transitions. [2023-11-19 07:50:55,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:50:55,859 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1160 transitions. [2023-11-19 07:50:55,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-19 07:50:55,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:55,860 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, 1] [2023-11-19 07:50:55,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:56,080 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-19 07:50:56,080 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:56,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:56,081 INFO L85 PathProgramCache]: Analyzing trace with hash -2067236295, now seen corresponding path program 2 times [2023-11-19 07:50:56,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:56,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504934640] [2023-11-19 07:50:56,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:56,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:56,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:56,510 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-19 07:50:56,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:56,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504934640] [2023-11-19 07:50:56,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504934640] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:56,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205643600] [2023-11-19 07:50:56,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:50:56,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:56,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:56,513 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:56,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:50:57,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:50:57,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:50:57,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 1019 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:50:57,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:57,279 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-19 07:50:57,279 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:57,376 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-19 07:50:57,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205643600] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:57,377 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:57,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 07:50:57,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746166013] [2023-11-19 07:50:57,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:57,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:50:57,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:57,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:50:57,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:50:57,380 INFO L87 Difference]: Start difference. First operand 850 states and 1160 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 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) [2023-11-19 07:50:57,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:50:57,904 INFO L93 Difference]: Finished difference Result 1682 states and 2312 transitions. [2023-11-19 07:50:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-19 07:50:57,904 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 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 76 [2023-11-19 07:50:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:50:57,910 INFO L225 Difference]: With dead ends: 1682 [2023-11-19 07:50:57,910 INFO L226 Difference]: Without dead ends: 885 [2023-11-19 07:50:57,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-19 07:50:57,915 INFO L413 NwaCegarLoop]: 1022 mSDtfsCounter, 11 mSDsluCounter, 6102 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 7124 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:50:57,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 7124 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:50:57,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states. [2023-11-19 07:50:57,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 885. [2023-11-19 07:50:57,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 757 states have (on average 1.478203434610304) internal successors, (1119), 837 states have internal predecessors, (1119), 42 states have call successors, (42), 14 states have call predecessors, (42), 12 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:50:57,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1195 transitions. [2023-11-19 07:50:58,004 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1195 transitions. Word has length 76 [2023-11-19 07:50:58,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:50:58,005 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1195 transitions. [2023-11-19 07:50:58,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 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) [2023-11-19 07:50:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1195 transitions. [2023-11-19 07:50:58,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-19 07:50:58,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:50:58,007 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:50:58,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:50:58,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:50:58,228 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting getopt32Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:50:58,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:50:58,229 INFO L85 PathProgramCache]: Analyzing trace with hash -1082585669, now seen corresponding path program 1 times [2023-11-19 07:50:58,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:50:58,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111814289] [2023-11-19 07:50:58,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:50:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:50:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:58,719 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:50:58,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:50:58,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111814289] [2023-11-19 07:50:58,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111814289] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:50:58,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118984953] [2023-11-19 07:50:58,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:50:58,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:50:58,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:50:58,722 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:50:58,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:50:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:50:59,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:50:59,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:50:59,393 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:50:59,393 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:50:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:50:59,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118984953] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:50:59,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:50:59,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-19 07:50:59,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072241077] [2023-11-19 07:50:59,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:50:59,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-19 07:50:59,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:50:59,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-19 07:50:59,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:50:59,521 INFO L87 Difference]: Start difference. First operand 885 states and 1195 transitions. Second operand has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:51:00,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:00,140 INFO L93 Difference]: Finished difference Result 3850 states and 5571 transitions. [2023-11-19 07:51:00,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-19 07:51:00,141 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 105 [2023-11-19 07:51:00,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:00,165 INFO L225 Difference]: With dead ends: 3850 [2023-11-19 07:51:00,166 INFO L226 Difference]: Without dead ends: 3849 [2023-11-19 07:51:00,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:51:00,169 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 5116 mSDsluCounter, 7885 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 8905 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:00,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 8905 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:51:00,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3849 states. [2023-11-19 07:51:00,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3849 to 909. [2023-11-19 07:51:00,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 909 states, 781 states have (on average 1.471190781049936) internal successors, (1149), 861 states have internal predecessors, (1149), 42 states have call successors, (42), 14 states have call predecessors, (42), 12 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:51:00,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 909 states to 909 states and 1225 transitions. [2023-11-19 07:51:00,278 INFO L78 Accepts]: Start accepts. Automaton has 909 states and 1225 transitions. Word has length 105 [2023-11-19 07:51:00,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:00,279 INFO L495 AbstractCegarLoop]: Abstraction has 909 states and 1225 transitions. [2023-11-19 07:51:00,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 6.166666666666667) internal successors, (74), 13 states have internal predecessors, (74), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:51:00,279 INFO L276 IsEmpty]: Start isEmpty. Operand 909 states and 1225 transitions. [2023-11-19 07:51:00,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:51:00,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:00,281 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:00,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:51:00,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:51:00,496 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting getopt32Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:00,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:00,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1185077839, now seen corresponding path program 1 times [2023-11-19 07:51:00,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:00,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588504078] [2023-11-19 07:51:00,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:00,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:01,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:01,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:51:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:01,193 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:51:01,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:01,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588504078] [2023-11-19 07:51:01,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588504078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:01,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:51:01,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:51:01,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578989732] [2023-11-19 07:51:01,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:01,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:51:01,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:01,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:51:01,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:51:01,196 INFO L87 Difference]: Start difference. First operand 909 states and 1225 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:02,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:02,402 INFO L93 Difference]: Finished difference Result 2003 states and 2782 transitions. [2023-11-19 07:51:02,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:51:02,409 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 111 [2023-11-19 07:51:02,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:02,423 INFO L225 Difference]: With dead ends: 2003 [2023-11-19 07:51:02,423 INFO L226 Difference]: Without dead ends: 1371 [2023-11-19 07:51:02,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:51:02,427 INFO L413 NwaCegarLoop]: 1065 mSDtfsCounter, 1861 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1875 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:02,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1875 Valid, 2776 Invalid, 602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:51:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1371 states. [2023-11-19 07:51:02,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1371 to 1005. [2023-11-19 07:51:02,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 873 states have (on average 1.4570446735395188) internal successors, (1272), 954 states have internal predecessors, (1272), 45 states have call successors, (45), 16 states have call predecessors, (45), 13 states have return successors, (37), 35 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-19 07:51:02,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1354 transitions. [2023-11-19 07:51:02,496 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1354 transitions. Word has length 111 [2023-11-19 07:51:02,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:02,497 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1354 transitions. [2023-11-19 07:51:02,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:02,497 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1354 transitions. [2023-11-19 07:51:02,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-19 07:51:02,499 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:02,499 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:02,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-19 07:51:02,500 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting getopt32Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:02,500 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:02,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1077855859, now seen corresponding path program 1 times [2023-11-19 07:51:02,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:02,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699300011] [2023-11-19 07:51:02,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:02,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:03,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:03,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:03,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:51:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:51:03,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:03,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699300011] [2023-11-19 07:51:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [699300011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:03,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:51:03,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:51:03,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626915304] [2023-11-19 07:51:03,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:03,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:51:03,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:03,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:51:03,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:51:03,231 INFO L87 Difference]: Start difference. First operand 1005 states and 1354 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:04,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:04,402 INFO L93 Difference]: Finished difference Result 2007 states and 2780 transitions. [2023-11-19 07:51:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:51:04,403 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 111 [2023-11-19 07:51:04,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:04,412 INFO L225 Difference]: With dead ends: 2007 [2023-11-19 07:51:04,412 INFO L226 Difference]: Without dead ends: 1378 [2023-11-19 07:51:04,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:51:04,416 INFO L413 NwaCegarLoop]: 1239 mSDtfsCounter, 1745 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1758 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:04,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1758 Valid, 3160 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-19 07:51:04,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1378 states. [2023-11-19 07:51:04,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1378 to 913. [2023-11-19 07:51:04,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 913 states, 784 states have (on average 1.468112244897959) internal successors, (1151), 864 states have internal predecessors, (1151), 42 states have call successors, (42), 15 states have call predecessors, (42), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:51:04,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 913 states to 913 states and 1227 transitions. [2023-11-19 07:51:04,478 INFO L78 Accepts]: Start accepts. Automaton has 913 states and 1227 transitions. Word has length 111 [2023-11-19 07:51:04,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:04,478 INFO L495 AbstractCegarLoop]: Abstraction has 913 states and 1227 transitions. [2023-11-19 07:51:04,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:04,479 INFO L276 IsEmpty]: Start isEmpty. Operand 913 states and 1227 transitions. [2023-11-19 07:51:04,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:51:04,480 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:04,480 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:04,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-19 07:51:04,481 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting getopt32Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:04,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:04,482 INFO L85 PathProgramCache]: Analyzing trace with hash 1762773693, now seen corresponding path program 1 times [2023-11-19 07:51:04,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:04,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141046875] [2023-11-19 07:51:04,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:04,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:04,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:04,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:04,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:51:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:04,906 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:51:04,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:04,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141046875] [2023-11-19 07:51:04,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141046875] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:51:04,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150124327] [2023-11-19 07:51:04,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:04,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:51:04,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:51:04,909 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:51:04,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:51:05,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:05,649 INFO L262 TraceCheckSpWp]: Trace formula consists of 1300 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:51:05,653 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:51:05,718 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:51:05,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:51:05,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150124327] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:05,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:51:05,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-19 07:51:05,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812784897] [2023-11-19 07:51:05,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:05,720 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:51:05,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:05,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:51:05,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:51:05,721 INFO L87 Difference]: Start difference. First operand 913 states and 1227 transitions. Second operand has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:05,953 INFO L93 Difference]: Finished difference Result 1675 states and 2305 transitions. [2023-11-19 07:51:05,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:51:05,954 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 113 [2023-11-19 07:51:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:05,960 INFO L225 Difference]: With dead ends: 1675 [2023-11-19 07:51:05,960 INFO L226 Difference]: Without dead ends: 972 [2023-11-19 07:51:05,963 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:51:05,964 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 436 mSDsluCounter, 1761 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 447 SdHoareTripleChecker+Valid, 2852 SdHoareTripleChecker+Invalid, 163 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:05,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [447 Valid, 2852 Invalid, 163 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:51:05,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 972 states. [2023-11-19 07:51:06,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 972 to 895. [2023-11-19 07:51:06,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 775 states have (on average 1.455483870967742) internal successors, (1128), 846 states have internal predecessors, (1128), 42 states have call successors, (42), 15 states have call predecessors, (42), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:51:06,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 1204 transitions. [2023-11-19 07:51:06,026 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 1204 transitions. Word has length 113 [2023-11-19 07:51:06,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:06,026 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 1204 transitions. [2023-11-19 07:51:06,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.5) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:06,027 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 1204 transitions. [2023-11-19 07:51:06,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2023-11-19 07:51:06,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:06,029 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:06,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:51:06,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-19 07:51:06,257 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting getopt32Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:06,257 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:06,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1808425088, now seen corresponding path program 1 times [2023-11-19 07:51:06,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:06,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172837367] [2023-11-19 07:51:06,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:06,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:06,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:06,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:06,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:51:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:06,574 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-19 07:51:06,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:06,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172837367] [2023-11-19 07:51:06,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172837367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:06,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:51:06,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:51:06,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775063745] [2023-11-19 07:51:06,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:06,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:51:06,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:06,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:51:06,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:51:06,577 INFO L87 Difference]: Start difference. First operand 895 states and 1204 transitions. Second operand has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:51:07,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:07,612 INFO L93 Difference]: Finished difference Result 1179 states and 1636 transitions. [2023-11-19 07:51:07,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:51:07,613 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 115 [2023-11-19 07:51:07,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:07,621 INFO L225 Difference]: With dead ends: 1179 [2023-11-19 07:51:07,621 INFO L226 Difference]: Without dead ends: 1178 [2023-11-19 07:51:07,622 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 [2023-11-19 07:51:07,623 INFO L413 NwaCegarLoop]: 1229 mSDtfsCounter, 447 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 3134 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:07,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [448 Valid, 3134 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:51:07,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1178 states. [2023-11-19 07:51:07,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1178 to 894. [2023-11-19 07:51:07,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 775 states have (on average 1.4541935483870967) internal successors, (1127), 845 states have internal predecessors, (1127), 42 states have call successors, (42), 15 states have call predecessors, (42), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:51:07,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1203 transitions. [2023-11-19 07:51:07,680 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1203 transitions. Word has length 115 [2023-11-19 07:51:07,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:07,680 INFO L495 AbstractCegarLoop]: Abstraction has 894 states and 1203 transitions. [2023-11-19 07:51:07,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:51:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1203 transitions. [2023-11-19 07:51:07,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:51:07,682 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:07,682 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, 1] [2023-11-19 07:51:07,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-19 07:51:07,683 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:07,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:07,683 INFO L85 PathProgramCache]: Analyzing trace with hash -215900552, now seen corresponding path program 1 times [2023-11-19 07:51:07,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:07,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340913493] [2023-11-19 07:51:07,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:07,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:07,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:08,154 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:51:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:08,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340913493] [2023-11-19 07:51:08,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340913493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:51:08,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1706583711] [2023-11-19 07:51:08,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:08,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:51:08,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:51:08,159 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:51:08,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:51:08,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:08,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 1248 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:51:08,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:51:09,029 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:51:09,030 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:51:09,146 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:51:09,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1706583711] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:51:09,147 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:51:09,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:51:09,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201667842] [2023-11-19 07:51:09,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:51:09,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:51:09,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:09,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:51:09,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:51:09,149 INFO L87 Difference]: Start difference. First operand 894 states and 1203 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 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) [2023-11-19 07:51:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:09,275 INFO L93 Difference]: Finished difference Result 1003 states and 1320 transitions. [2023-11-19 07:51:09,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:51:09,276 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 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 113 [2023-11-19 07:51:09,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:09,281 INFO L225 Difference]: With dead ends: 1003 [2023-11-19 07:51:09,281 INFO L226 Difference]: Without dead ends: 1002 [2023-11-19 07:51:09,282 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:51:09,283 INFO L413 NwaCegarLoop]: 1012 mSDtfsCounter, 4 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3040 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:09,283 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 3040 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:51:09,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1002 states. [2023-11-19 07:51:09,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1002 to 999. [2023-11-19 07:51:09,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 880 states have (on average 1.4068181818181817) internal successors, (1238), 950 states have internal predecessors, (1238), 42 states have call successors, (42), 15 states have call predecessors, (42), 13 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:51:09,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1314 transitions. [2023-11-19 07:51:09,342 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1314 transitions. Word has length 113 [2023-11-19 07:51:09,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:09,342 INFO L495 AbstractCegarLoop]: Abstraction has 999 states and 1314 transitions. [2023-11-19 07:51:09,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 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) [2023-11-19 07:51:09,343 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1314 transitions. [2023-11-19 07:51:09,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-19 07:51:09,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:09,344 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, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:09,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:51:09,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e30f2e24-f7c1-4477-a595-bf8e411dab7f/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:51:09,560 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting getopt32Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:09,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:09,561 INFO L85 PathProgramCache]: Analyzing trace with hash 491989391, now seen corresponding path program 1 times [2023-11-19 07:51:09,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:09,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560616905] [2023-11-19 07:51:09,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:09,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:10,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:10,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:10,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2023-11-19 07:51:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:10,080 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-19 07:51:10,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:10,082 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560616905] [2023-11-19 07:51:10,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560616905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:10,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:51:10,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:51:10,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85687734] [2023-11-19 07:51:10,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:10,083 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:51:10,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:10,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:51:10,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:51:10,084 INFO L87 Difference]: Start difference. First operand 999 states and 1314 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:11,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:11,015 INFO L93 Difference]: Finished difference Result 2055 states and 2812 transitions. [2023-11-19 07:51:11,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:51:11,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 116 [2023-11-19 07:51:11,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:11,043 INFO L225 Difference]: With dead ends: 2055 [2023-11-19 07:51:11,044 INFO L226 Difference]: Without dead ends: 1287 [2023-11-19 07:51:11,047 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 [2023-11-19 07:51:11,048 INFO L413 NwaCegarLoop]: 1223 mSDtfsCounter, 467 mSDsluCounter, 1863 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:11,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 3086 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-19 07:51:11,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1287 states. [2023-11-19 07:51:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1287 to 1003. [2023-11-19 07:51:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1003 states, 883 states have (on average 1.404303510758777) internal successors, (1240), 953 states have internal predecessors, (1240), 42 states have call successors, (42), 16 states have call predecessors, (42), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:51:11,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1003 states to 1003 states and 1316 transitions. [2023-11-19 07:51:11,118 INFO L78 Accepts]: Start accepts. Automaton has 1003 states and 1316 transitions. Word has length 116 [2023-11-19 07:51:11,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:11,119 INFO L495 AbstractCegarLoop]: Abstraction has 1003 states and 1316 transitions. [2023-11-19 07:51:11,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand 1003 states and 1316 transitions. [2023-11-19 07:51:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:51:11,121 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:11,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:11,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2023-11-19 07:51:11,122 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting getopt32Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:11,122 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:11,123 INFO L85 PathProgramCache]: Analyzing trace with hash 54652591, now seen corresponding path program 1 times [2023-11-19 07:51:11,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:11,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383943974] [2023-11-19 07:51:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:11,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:11,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:11,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:11,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:11,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:51:11,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:11,555 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2023-11-19 07:51:11,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:51:11,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383943974] [2023-11-19 07:51:11,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383943974] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:51:11,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:51:11,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:51:11,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778284926] [2023-11-19 07:51:11,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:51:11,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:51:11,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:51:11,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:51:11,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:51:11,558 INFO L87 Difference]: Start difference. First operand 1003 states and 1316 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:12,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:51:12,586 INFO L93 Difference]: Finished difference Result 2066 states and 2828 transitions. [2023-11-19 07:51:12,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:51:12,587 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 124 [2023-11-19 07:51:12,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:51:12,591 INFO L225 Difference]: With dead ends: 2066 [2023-11-19 07:51:12,591 INFO L226 Difference]: Without dead ends: 1289 [2023-11-19 07:51:12,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:51:12,595 INFO L413 NwaCegarLoop]: 1225 mSDtfsCounter, 450 mSDsluCounter, 3105 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 451 SdHoareTripleChecker+Valid, 4330 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-19 07:51:12,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [451 Valid, 4330 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-19 07:51:12,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1289 states. [2023-11-19 07:51:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1289 to 1005. [2023-11-19 07:51:12,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1005 states, 885 states have (on average 1.4033898305084747) internal successors, (1242), 955 states have internal predecessors, (1242), 42 states have call successors, (42), 16 states have call predecessors, (42), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-19 07:51:12,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1005 states to 1005 states and 1318 transitions. [2023-11-19 07:51:12,659 INFO L78 Accepts]: Start accepts. Automaton has 1005 states and 1318 transitions. Word has length 124 [2023-11-19 07:51:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:51:12,659 INFO L495 AbstractCegarLoop]: Abstraction has 1005 states and 1318 transitions. [2023-11-19 07:51:12,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:51:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1005 states and 1318 transitions. [2023-11-19 07:51:12,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-11-19 07:51:12,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:51:12,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:51:12,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-19 07:51:12,662 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting getopt32Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [unicode_strwidthErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, unicode_strwidthErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 81 more)] === [2023-11-19 07:51:12,662 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:51:12,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1108126545, now seen corresponding path program 1 times [2023-11-19 07:51:12,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:51:12,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621680499] [2023-11-19 07:51:12,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:51:12,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:51:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:13,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:51:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:51:13,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-19 07:51:13,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat