./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/printf-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/printf-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --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 c63b21f7a682a04747e33e99b370c56eb0587876361598f770f41e1686fc8817 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:02:39,485 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:02:39,561 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:02:39,567 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:02:39,567 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:02:39,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:02:39,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:02:39,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:02:39,594 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:02:39,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:02:39,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:02:39,596 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:02:39,597 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:02:39,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:02:39,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:02:39,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:02:39,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:02:39,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:02:39,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:02:39,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:02:39,602 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:02:39,603 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:02:39,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:02:39,604 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:02:39,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:02:39,605 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:02:39,606 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:02:39,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:39,607 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:02:39,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:02:39,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:02:39,609 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:02:39,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:02:39,610 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:02:39,610 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:02:39,611 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:02:39,611 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:02:39,611 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:02:39,612 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_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c63b21f7a682a04747e33e99b370c56eb0587876361598f770f41e1686fc8817 [2023-11-06 22:02:39,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:02:39,929 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:02:39,932 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:02:39,933 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:02:39,934 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:02:39,936 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/printf-2.i [2023-11-06 22:02:43,357 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:02:44,083 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:02:44,085 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/sv-benchmarks/c/busybox-1.22.0/printf-2.i [2023-11-06 22:02:44,136 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/data/47e689ed6/0baa02f466fd470cb2f142d925619410/FLAGc1fd62c7a [2023-11-06 22:02:44,162 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/data/47e689ed6/0baa02f466fd470cb2f142d925619410 [2023-11-06 22:02:44,170 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:02:44,174 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:02:44,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:44,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:02:44,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:02:44,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:44" (1/1) ... [2023-11-06 22:02:44,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4a88b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:44, skipping insertion in model container [2023-11-06 22:02:44,190 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:02:44" (1/1) ... [2023-11-06 22:02:44,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:02:46,246 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:46,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:02:46,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:02:46,738 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,738 WARN L672 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,739 WARN L672 CHandler]: The function strtol is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,739 WARN L672 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,739 WARN L672 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,739 WARN L672 CHandler]: The function strtoll is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,740 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,740 WARN L672 CHandler]: The function convert is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:02:46,749 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:02:46,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46 WrapperNode [2023-11-06 22:02:46,750 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:02:46,751 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:46,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:02:46,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:02:46,760 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:46,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,007 INFO L138 Inliner]: procedures = 648, calls = 521, calls flagged for inlining = 31, calls inlined = 29, statements flattened = 1570 [2023-11-06 22:02:47,008 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:02:47,009 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:02:47,009 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:02:47,009 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:02:47,020 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,045 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,144 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,170 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,209 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:02:47,210 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:02:47,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:02:47,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:02:47,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (1/1) ... [2023-11-06 22:02:47,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:02:47,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:47,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:02:47,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:02:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-06 22:02:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-06 22:02:47,294 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2023-11-06 22:02:47,295 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2023-11-06 22:02:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-06 22:02:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:02:47,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2023-11-06 22:02:47,296 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2023-11-06 22:02:47,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2023-11-06 22:02:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 22:02:47,298 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 22:02:47,299 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 22:02:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:02:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 22:02:47,299 INFO L130 BoogieDeclarations]: Found specification of procedure get_width_prec [2023-11-06 22:02:47,300 INFO L138 BoogieDeclarations]: Found implementation of procedure get_width_prec [2023-11-06 22:02:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-11-06 22:02:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-06 22:02:47,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:02:47,301 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 22:02:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:02:47,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:02:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:02:47,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:02:47,303 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:02:47,304 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:02:47,304 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 22:02:47,305 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 22:02:47,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:02:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:02:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure handle_errors [2023-11-06 22:02:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_errors [2023-11-06 22:02:47,306 INFO L130 BoogieDeclarations]: Found specification of procedure bb_process_escape_sequence [2023-11-06 22:02:47,306 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_process_escape_sequence [2023-11-06 22:02:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:02:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:02:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure print_direc [2023-11-06 22:02:47,307 INFO L138 BoogieDeclarations]: Found implementation of procedure print_direc [2023-11-06 22:02:47,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:02:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:02:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:02:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2023-11-06 22:02:47,308 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2023-11-06 22:02:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-06 22:02:47,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 22:02:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-11-06 22:02:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure bb_strtoll [2023-11-06 22:02:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_strtoll [2023-11-06 22:02:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure multiconvert [2023-11-06 22:02:47,309 INFO L138 BoogieDeclarations]: Found implementation of procedure multiconvert [2023-11-06 22:02:47,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real [2023-11-06 22:02:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:02:47,310 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2023-11-06 22:02:47,310 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2023-11-06 22:02:47,901 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:02:47,903 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:02:49,791 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:02:49,813 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:02:49,813 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-06 22:02:49,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:49 BoogieIcfgContainer [2023-11-06 22:02:49,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:02:49,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:02:49,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:02:49,827 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:02:49,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:02:44" (1/3) ... [2023-11-06 22:02:49,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f16cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:49, skipping insertion in model container [2023-11-06 22:02:49,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:02:46" (2/3) ... [2023-11-06 22:02:49,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60f16cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:02:49, skipping insertion in model container [2023-11-06 22:02:49,830 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:49" (3/3) ... [2023-11-06 22:02:49,831 INFO L112 eAbstractionObserver]: Analyzing ICFG printf-2.i [2023-11-06 22:02:49,852 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:02:49,852 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-06 22:02:49,932 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:02:49,939 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6894f91d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:02:49,939 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-06 22:02:49,948 INFO L276 IsEmpty]: Start isEmpty. Operand has 489 states, 377 states have (on average 1.6127320954907163) internal successors, (608), 436 states have internal predecessors, (608), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-06 22:02:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:02:49,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:49,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:02:49,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:49,967 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:49,968 INFO L85 PathProgramCache]: Analyzing trace with hash 28939205, now seen corresponding path program 1 times [2023-11-06 22:02:49,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:49,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731990956] [2023-11-06 22:02:49,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:49,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:50,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:50,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:50,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731990956] [2023-11-06 22:02:50,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731990956] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:50,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:50,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:50,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341274848] [2023-11-06 22:02:50,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:50,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:50,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:50,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:50,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:50,639 INFO L87 Difference]: Start difference. First operand has 489 states, 377 states have (on average 1.6127320954907163) internal successors, (608), 436 states have internal predecessors, (608), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) 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) [2023-11-06 22:02:50,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:50,833 INFO L93 Difference]: Finished difference Result 963 states and 1455 transitions. [2023-11-06 22:02:50,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:50,844 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 [2023-11-06 22:02:50,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:50,863 INFO L225 Difference]: With dead ends: 963 [2023-11-06 22:02:50,863 INFO L226 Difference]: Without dead ends: 459 [2023-11-06 22:02:50,877 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 [2023-11-06 22:02:50,880 INFO L413 NwaCegarLoop]: 651 mSDtfsCounter, 1 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1296 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 [2023-11-06 22:02:50,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1296 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:50,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-06 22:02:50,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2023-11-06 22:02:50,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 373 states have (on average 1.4664879356568365) internal successors, (547), 408 states have internal predecessors, (547), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:50,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 624 transitions. [2023-11-06 22:02:50,994 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 624 transitions. Word has length 4 [2023-11-06 22:02:50,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:50,994 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 624 transitions. [2023-11-06 22:02:50,995 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) [2023-11-06 22:02:50,995 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 624 transitions. [2023-11-06 22:02:50,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 22:02:50,995 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:50,995 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-06 22:02:50,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:02:50,996 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:50,996 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:50,996 INFO L85 PathProgramCache]: Analyzing trace with hash -1159622183, now seen corresponding path program 1 times [2023-11-06 22:02:50,996 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:50,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441081422] [2023-11-06 22:02:50,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:50,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:51,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:51,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:51,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:51,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441081422] [2023-11-06 22:02:51,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441081422] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:51,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1683343781] [2023-11-06 22:02:51,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:51,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:51,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:51,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:51,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:02:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:51,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:51,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:51,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:51,649 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:51,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1683343781] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:51,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:51,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:02:51,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387238997] [2023-11-06 22:02:51,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:51,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:51,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:51,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:51,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:51,654 INFO L87 Difference]: Start difference. First operand 459 states and 624 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) [2023-11-06 22:02:51,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:51,703 INFO L93 Difference]: Finished difference Result 459 states and 624 transitions. [2023-11-06 22:02:51,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:51,705 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 [2023-11-06 22:02:51,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:51,712 INFO L225 Difference]: With dead ends: 459 [2023-11-06 22:02:51,713 INFO L226 Difference]: Without dead ends: 458 [2023-11-06 22:02:51,715 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 [2023-11-06 22:02:51,717 INFO L413 NwaCegarLoop]: 615 mSDtfsCounter, 5 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1228 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 [2023-11-06 22:02:51,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1228 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:51,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-11-06 22:02:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 458. [2023-11-06 22:02:51,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 373 states have (on average 1.4638069705093835) internal successors, (546), 407 states have internal predecessors, (546), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:51,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 623 transitions. [2023-11-06 22:02:51,769 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 623 transitions. Word has length 7 [2023-11-06 22:02:51,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:51,769 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 623 transitions. [2023-11-06 22:02:51,770 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) [2023-11-06 22:02:51,770 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 623 transitions. [2023-11-06 22:02:51,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:02:51,771 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:51,771 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-06 22:02:51,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-06 22:02:51,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-06 22:02:51,979 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:51,979 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:51,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1588548350, now seen corresponding path program 1 times [2023-11-06 22:02:51,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:51,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251963329] [2023-11-06 22:02:51,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:51,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:02:52,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:52,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251963329] [2023-11-06 22:02:52,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251963329] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:52,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:52,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:52,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547731977] [2023-11-06 22:02:52,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:52,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:52,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:52,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:52,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:52,144 INFO L87 Difference]: Start difference. First operand 458 states and 623 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) [2023-11-06 22:02:52,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:52,190 INFO L93 Difference]: Finished difference Result 458 states and 623 transitions. [2023-11-06 22:02:52,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:52,191 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 [2023-11-06 22:02:52,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:52,197 INFO L225 Difference]: With dead ends: 458 [2023-11-06 22:02:52,198 INFO L226 Difference]: Without dead ends: 457 [2023-11-06 22:02:52,198 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 [2023-11-06 22:02:52,208 INFO L413 NwaCegarLoop]: 616 mSDtfsCounter, 0 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1229 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 [2023-11-06 22:02:52,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1229 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:52,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2023-11-06 22:02:52,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 455. [2023-11-06 22:02:52,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 371 states have (on average 1.463611859838275) internal successors, (543), 404 states have internal predecessors, (543), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:52,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 620 transitions. [2023-11-06 22:02:52,235 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 620 transitions. Word has length 8 [2023-11-06 22:02:52,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:52,235 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 620 transitions. [2023-11-06 22:02:52,236 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) [2023-11-06 22:02:52,236 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 620 transitions. [2023-11-06 22:02:52,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 22:02:52,236 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:52,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:52,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:02:52,237 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:52,238 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:52,238 INFO L85 PathProgramCache]: Analyzing trace with hash 442803971, now seen corresponding path program 1 times [2023-11-06 22:02:52,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:52,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705188617] [2023-11-06 22:02:52,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:52,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:02:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:52,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:52,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705188617] [2023-11-06 22:02:52,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705188617] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:52,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426217025] [2023-11-06 22:02:52,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:52,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:52,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:52,524 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:52,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:02:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:52,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:02:52,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:52,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 22:02:52,904 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:52,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426217025] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:52,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:52,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-06 22:02:52,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686214148] [2023-11-06 22:02:52,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:52,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:52,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:52,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:52,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:02:52,910 INFO L87 Difference]: Start difference. First operand 455 states and 620 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) [2023-11-06 22:02:52,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:52,972 INFO L93 Difference]: Finished difference Result 455 states and 620 transitions. [2023-11-06 22:02:52,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:52,973 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 [2023-11-06 22:02:52,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:52,979 INFO L225 Difference]: With dead ends: 455 [2023-11-06 22:02:52,979 INFO L226 Difference]: Without dead ends: 453 [2023-11-06 22:02:52,980 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 [2023-11-06 22:02:52,982 INFO L413 NwaCegarLoop]: 607 mSDtfsCounter, 162 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1048 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 [2023-11-06 22:02:52,983 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 1048 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:52,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2023-11-06 22:02:53,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 453. [2023-11-06 22:02:53,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 371 states have (on average 1.45822102425876) internal successors, (541), 402 states have internal predecessors, (541), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:53,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 618 transitions. [2023-11-06 22:02:53,012 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 618 transitions. Word has length 13 [2023-11-06 22:02:53,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:53,013 INFO L495 AbstractCegarLoop]: Abstraction has 453 states and 618 transitions. [2023-11-06 22:02:53,016 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) [2023-11-06 22:02:53,017 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 618 transitions. [2023-11-06 22:02:53,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 22:02:53,017 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:53,017 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:53,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:53,225 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:53,225 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:53,225 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:53,225 INFO L85 PathProgramCache]: Analyzing trace with hash 842022177, now seen corresponding path program 1 times [2023-11-06 22:02:53,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:53,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124211362] [2023-11-06 22:02:53,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:53,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:53,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 22:02:53,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:53,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:53,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:53,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124211362] [2023-11-06 22:02:53,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124211362] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:53,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1083058612] [2023-11-06 22:02:53,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:53,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:53,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:53,407 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:53,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:02:53,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:53,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:02:53,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:53,745 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:53,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:53,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1083058612] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:02:53,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:02:53,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:02:53,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714201273] [2023-11-06 22:02:53,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:02:53,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:02:53,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:53,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:02:53,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:02:53,781 INFO L87 Difference]: Start difference. First operand 453 states and 618 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) [2023-11-06 22:02:53,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:53,858 INFO L93 Difference]: Finished difference Result 909 states and 1241 transitions. [2023-11-06 22:02:53,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:02:53,859 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 [2023-11-06 22:02:53,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:53,864 INFO L225 Difference]: With dead ends: 909 [2023-11-06 22:02:53,864 INFO L226 Difference]: Without dead ends: 462 [2023-11-06 22:02:53,866 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 [2023-11-06 22:02:53,867 INFO L413 NwaCegarLoop]: 614 mSDtfsCounter, 4 mSDsluCounter, 611 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1225 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 [2023-11-06 22:02:53,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1225 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:53,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2023-11-06 22:02:53,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 462. [2023-11-06 22:02:53,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 380 states have (on average 1.4473684210526316) internal successors, (550), 411 states have internal predecessors, (550), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:53,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 627 transitions. [2023-11-06 22:02:53,893 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 627 transitions. Word has length 14 [2023-11-06 22:02:53,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:53,893 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 627 transitions. [2023-11-06 22:02:53,893 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) [2023-11-06 22:02:53,894 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 627 transitions. [2023-11-06 22:02:53,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 22:02:53,894 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:53,894 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:53,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:54,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:54,107 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:54,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:54,107 INFO L85 PathProgramCache]: Analyzing trace with hash 639273653, now seen corresponding path program 2 times [2023-11-06 22:02:54,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:54,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666620506] [2023-11-06 22:02:54,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:54,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:02:54,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:02:54,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:54,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666620506] [2023-11-06 22:02:54,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666620506] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:54,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124170972] [2023-11-06 22:02:54,412 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:02:54,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:54,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:54,414 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:54,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:02:54,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:02:54,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:02:54,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:02:54,740 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:54,784 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:02:54,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:54,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124170972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:54,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:54,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-06 22:02:54,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458179036] [2023-11-06 22:02:54,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:54,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:02:54,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:54,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:02:54,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:02:54,786 INFO L87 Difference]: Start difference. First operand 462 states and 627 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) [2023-11-06 22:02:54,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:54,898 INFO L93 Difference]: Finished difference Result 462 states and 627 transitions. [2023-11-06 22:02:54,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:02:54,899 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 [2023-11-06 22:02:54,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:54,902 INFO L225 Difference]: With dead ends: 462 [2023-11-06 22:02:54,902 INFO L226 Difference]: Without dead ends: 460 [2023-11-06 22:02:54,903 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 [2023-11-06 22:02:54,904 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 161 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 2232 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:54,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 2232 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:54,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 460 states. [2023-11-06 22:02:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 460 to 460. [2023-11-06 22:02:54,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 380 states have (on average 1.4421052631578948) internal successors, (548), 409 states have internal predecessors, (548), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 625 transitions. [2023-11-06 22:02:54,926 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 625 transitions. Word has length 23 [2023-11-06 22:02:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:54,926 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 625 transitions. [2023-11-06 22:02:54,927 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) [2023-11-06 22:02:54,927 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 625 transitions. [2023-11-06 22:02:54,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-06 22:02:54,928 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:54,928 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:54,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:55,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:55,135 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:55,136 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2101583556, now seen corresponding path program 1 times [2023-11-06 22:02:55,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:55,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019523421] [2023-11-06 22:02:55,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:55,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:55,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:55,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:02:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:55,353 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:02:55,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:55,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019523421] [2023-11-06 22:02:55,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019523421] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:55,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:55,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:55,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248727713] [2023-11-06 22:02:55,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:55,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:55,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:55,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:55,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:55,357 INFO L87 Difference]: Start difference. First operand 460 states and 625 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) [2023-11-06 22:02:55,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:55,409 INFO L93 Difference]: Finished difference Result 902 states and 1233 transitions. [2023-11-06 22:02:55,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:55,410 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 [2023-11-06 22:02:55,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:55,416 INFO L225 Difference]: With dead ends: 902 [2023-11-06 22:02:55,416 INFO L226 Difference]: Without dead ends: 463 [2023-11-06 22:02:55,418 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 [2023-11-06 22:02:55,419 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 1 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1218 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 [2023-11-06 22:02:55,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1218 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:55,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-06 22:02:55,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 463. [2023-11-06 22:02:55,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 383 states have (on average 1.4386422976501305) internal successors, (551), 412 states have internal predecessors, (551), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:55,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 628 transitions. [2023-11-06 22:02:55,452 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 628 transitions. Word has length 28 [2023-11-06 22:02:55,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:55,452 INFO L495 AbstractCegarLoop]: Abstraction has 463 states and 628 transitions. [2023-11-06 22:02:55,452 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) [2023-11-06 22:02:55,452 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 628 transitions. [2023-11-06 22:02:55,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-06 22:02:55,457 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:55,458 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] [2023-11-06 22:02:55,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:02:55,458 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:55,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:55,459 INFO L85 PathProgramCache]: Analyzing trace with hash -536461084, now seen corresponding path program 1 times [2023-11-06 22:02:55,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:55,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257990508] [2023-11-06 22:02:55,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:55,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:55,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:02:55,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 22:02:55,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257990508] [2023-11-06 22:02:55,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257990508] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:55,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867278704] [2023-11-06 22:02:55,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:55,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:55,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:55,717 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:55,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 22:02:56,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:56,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:02:56,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:56,179 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:02:56,179 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:02:56,319 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 22:02:56,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867278704] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:02:56,320 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:02:56,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 22:02:56,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138929745] [2023-11-06 22:02:56,320 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:02:56,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:02:56,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:56,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:02:56,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:02:56,322 INFO L87 Difference]: Start difference. First operand 463 states and 628 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) [2023-11-06 22:02:56,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:56,500 INFO L93 Difference]: Finished difference Result 928 states and 1264 transitions. [2023-11-06 22:02:56,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:02:56,501 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 [2023-11-06 22:02:56,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:56,505 INFO L225 Difference]: With dead ends: 928 [2023-11-06 22:02:56,505 INFO L226 Difference]: Without dead ends: 480 [2023-11-06 22:02:56,507 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 [2023-11-06 22:02:56,508 INFO L413 NwaCegarLoop]: 606 mSDtfsCounter, 7 mSDsluCounter, 3015 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3621 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 [2023-11-06 22:02:56,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3621 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:56,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2023-11-06 22:02:56,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2023-11-06 22:02:56,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 401 states have (on average 1.4164588528678304) internal successors, (568), 429 states have internal predecessors, (568), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:56,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 645 transitions. [2023-11-06 22:02:56,532 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 645 transitions. Word has length 31 [2023-11-06 22:02:56,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:56,533 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 645 transitions. [2023-11-06 22:02:56,533 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) [2023-11-06 22:02:56,533 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 645 transitions. [2023-11-06 22:02:56,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:02:56,535 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:56,535 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] [2023-11-06 22:02:56,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:56,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:56,744 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:56,745 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:56,745 INFO L85 PathProgramCache]: Analyzing trace with hash -705085640, now seen corresponding path program 1 times [2023-11-06 22:02:56,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:56,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390172275] [2023-11-06 22:02:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:56,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:56,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:02:56,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:56,974 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:02:56,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:56,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390172275] [2023-11-06 22:02:56,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390172275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:56,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:56,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:56,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394470044] [2023-11-06 22:02:56,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:56,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:56,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:56,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:56,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:56,977 INFO L87 Difference]: Start difference. First operand 480 states and 645 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) [2023-11-06 22:02:57,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:57,032 INFO L93 Difference]: Finished difference Result 494 states and 661 transitions. [2023-11-06 22:02:57,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:57,033 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 [2023-11-06 22:02:57,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:57,036 INFO L225 Difference]: With dead ends: 494 [2023-11-06 22:02:57,037 INFO L226 Difference]: Without dead ends: 492 [2023-11-06 22:02:57,037 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 [2023-11-06 22:02:57,038 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 3 mSDsluCounter, 604 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1213 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 [2023-11-06 22:02:57,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1213 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:57,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2023-11-06 22:02:57,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 490. [2023-11-06 22:02:57,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 411 states have (on average 1.413625304136253) internal successors, (581), 439 states have internal predecessors, (581), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:57,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 658 transitions. [2023-11-06 22:02:57,061 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 658 transitions. Word has length 50 [2023-11-06 22:02:57,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:57,062 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 658 transitions. [2023-11-06 22:02:57,062 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) [2023-11-06 22:02:57,062 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 658 transitions. [2023-11-06 22:02:57,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:02:57,064 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:57,064 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] [2023-11-06 22:02:57,064 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:02:57,064 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:57,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:57,065 INFO L85 PathProgramCache]: Analyzing trace with hash -705083911, now seen corresponding path program 1 times [2023-11-06 22:02:57,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:57,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423156149] [2023-11-06 22:02:57,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:57,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:57,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:02:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,293 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:02:57,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:57,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423156149] [2023-11-06 22:02:57,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423156149] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:57,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:57,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:57,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097757995] [2023-11-06 22:02:57,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:57,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:57,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:57,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:57,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:57,295 INFO L87 Difference]: Start difference. First operand 490 states and 658 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) [2023-11-06 22:02:57,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:57,330 INFO L93 Difference]: Finished difference Result 490 states and 658 transitions. [2023-11-06 22:02:57,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:57,330 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 [2023-11-06 22:02:57,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:57,334 INFO L225 Difference]: With dead ends: 490 [2023-11-06 22:02:57,334 INFO L226 Difference]: Without dead ends: 489 [2023-11-06 22:02:57,335 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 [2023-11-06 22:02:57,336 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 0 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1216 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 [2023-11-06 22:02:57,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1216 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:57,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 489 states. [2023-11-06 22:02:57,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 489 to 485. [2023-11-06 22:02:57,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 407 states have (on average 1.4127764127764129) internal successors, (575), 434 states have internal predecessors, (575), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:57,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 652 transitions. [2023-11-06 22:02:57,361 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 652 transitions. Word has length 50 [2023-11-06 22:02:57,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:57,361 INFO L495 AbstractCegarLoop]: Abstraction has 485 states and 652 transitions. [2023-11-06 22:02:57,362 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) [2023-11-06 22:02:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 652 transitions. [2023-11-06 22:02:57,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-06 22:02:57,363 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:57,363 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] [2023-11-06 22:02:57,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:02:57,363 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:57,363 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:57,364 INFO L85 PathProgramCache]: Analyzing trace with hash -126752289, now seen corresponding path program 1 times [2023-11-06 22:02:57,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:57,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780497693] [2023-11-06 22:02:57,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:57,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:57,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:02:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,570 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:02:57,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:57,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780497693] [2023-11-06 22:02:57,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780497693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:57,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:02:57,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:02:57,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632392490] [2023-11-06 22:02:57,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:57,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:02:57,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:57,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:02:57,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:02:57,573 INFO L87 Difference]: Start difference. First operand 485 states and 652 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:57,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:57,606 INFO L93 Difference]: Finished difference Result 490 states and 657 transitions. [2023-11-06 22:02:57,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:02:57,607 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 51 [2023-11-06 22:02:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:57,610 INFO L225 Difference]: With dead ends: 490 [2023-11-06 22:02:57,611 INFO L226 Difference]: Without dead ends: 488 [2023-11-06 22:02:57,611 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 [2023-11-06 22:02:57,612 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 1 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1216 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:57,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1216 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:57,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2023-11-06 22:02:57,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2023-11-06 22:02:57,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 410 states have (on average 1.4097560975609755) internal successors, (578), 437 states have internal predecessors, (578), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:57,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 655 transitions. [2023-11-06 22:02:57,636 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 655 transitions. Word has length 51 [2023-11-06 22:02:57,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:57,637 INFO L495 AbstractCegarLoop]: Abstraction has 488 states and 655 transitions. [2023-11-06 22:02:57,637 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:02:57,637 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 655 transitions. [2023-11-06 22:02:57,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:02:57,639 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:57,639 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:02:57,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 22:02:57,639 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:57,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:57,640 INFO L85 PathProgramCache]: Analyzing trace with hash -799780498, now seen corresponding path program 1 times [2023-11-06 22:02:57,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:57,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913513223] [2023-11-06 22:02:57,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:57,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:02:57,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:57,897 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:02:57,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913513223] [2023-11-06 22:02:57,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913513223] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:57,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836760] [2023-11-06 22:02:57,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:57,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:57,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:57,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:57,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 22:02:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:58,367 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:02:58,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:02:58,391 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:58,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836760] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:58,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:58,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2023-11-06 22:02:58,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799938925] [2023-11-06 22:02:58,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:58,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:02:58,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:58,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:02:58,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:02:58,395 INFO L87 Difference]: Start difference. First operand 488 states and 655 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-06 22:02:58,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:58,483 INFO L93 Difference]: Finished difference Result 608 states and 827 transitions. [2023-11-06 22:02:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:02:58,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 54 [2023-11-06 22:02:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:58,488 INFO L225 Difference]: With dead ends: 608 [2023-11-06 22:02:58,488 INFO L226 Difference]: Without dead ends: 599 [2023-11-06 22:02:58,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:02:58,490 INFO L413 NwaCegarLoop]: 611 mSDtfsCounter, 269 mSDsluCounter, 1217 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 1828 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:58,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 1828 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:02:58,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2023-11-06 22:02:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 490. [2023-11-06 22:02:58,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 490 states, 412 states have (on average 1.4077669902912622) internal successors, (580), 439 states have internal predecessors, (580), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:02:58,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 490 states and 657 transitions. [2023-11-06 22:02:58,517 INFO L78 Accepts]: Start accepts. Automaton has 490 states and 657 transitions. Word has length 54 [2023-11-06 22:02:58,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:58,518 INFO L495 AbstractCegarLoop]: Abstraction has 490 states and 657 transitions. [2023-11-06 22:02:58,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-06 22:02:58,518 INFO L276 IsEmpty]: Start isEmpty. Operand 490 states and 657 transitions. [2023-11-06 22:02:58,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:02:58,519 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:58,519 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-06 22:02:58,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:58,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:58,727 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:58,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:58,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1565638759, now seen corresponding path program 1 times [2023-11-06 22:02:58,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:58,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966979882] [2023-11-06 22:02:58,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:58,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:02:58,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:58,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:02:58,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:58,975 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:02:58,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:02:58,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966979882] [2023-11-06 22:02:58,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966979882] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:02:58,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934384065] [2023-11-06 22:02:58,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:58,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:58,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:02:58,977 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:02:58,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 22:02:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:02:59,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:02:59,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:02:59,533 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:02:59,534 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:02:59,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934384065] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:02:59,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:02:59,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2023-11-06 22:02:59,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722427260] [2023-11-06 22:02:59,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:02:59,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:02:59,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:02:59,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:02:59,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:02:59,537 INFO L87 Difference]: Start difference. First operand 490 states and 657 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2023-11-06 22:02:59,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:02:59,684 INFO L93 Difference]: Finished difference Result 607 states and 828 transitions. [2023-11-06 22:02:59,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:02:59,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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 [2023-11-06 22:02:59,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:02:59,690 INFO L225 Difference]: With dead ends: 607 [2023-11-06 22:02:59,690 INFO L226 Difference]: Without dead ends: 594 [2023-11-06 22:02:59,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:02:59,692 INFO L413 NwaCegarLoop]: 612 mSDtfsCounter, 137 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1956 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:02:59,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 1956 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:02:59,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-06 22:02:59,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 591. [2023-11-06 22:02:59,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 502 states have (on average 1.4123505976095618) internal successors, (709), 531 states have internal predecessors, (709), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-06 22:02:59,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 807 transitions. [2023-11-06 22:02:59,733 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 807 transitions. Word has length 58 [2023-11-06 22:02:59,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:02:59,734 INFO L495 AbstractCegarLoop]: Abstraction has 591 states and 807 transitions. [2023-11-06 22:02:59,734 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2023-11-06 22:02:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 807 transitions. [2023-11-06 22:02:59,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 22:02:59,735 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:02:59,735 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] [2023-11-06 22:02:59,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:02:59,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:02:59,944 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:02:59,944 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:02:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash -2145447071, now seen corresponding path program 1 times [2023-11-06 22:02:59,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:02:59,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232648250] [2023-11-06 22:02:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:02:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:00,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:00,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:00,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:00,213 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:03:00,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:00,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232648250] [2023-11-06 22:03:00,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232648250] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:00,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [28509479] [2023-11-06 22:03:00,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:00,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:00,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:00,216 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:00,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 22:03:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:00,772 INFO L262 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:00,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:00,796 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:03:00,796 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:00,823 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 22:03:00,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [28509479] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:00,823 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:03:00,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 22:03:00,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752000400] [2023-11-06 22:03:00,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:00,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:03:00,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:00,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:03:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:00,825 INFO L87 Difference]: Start difference. First operand 591 states and 807 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) [2023-11-06 22:03:00,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:00,905 INFO L93 Difference]: Finished difference Result 1055 states and 1440 transitions. [2023-11-06 22:03:00,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:00,906 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 [2023-11-06 22:03:00,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:00,910 INFO L225 Difference]: With dead ends: 1055 [2023-11-06 22:03:00,910 INFO L226 Difference]: Without dead ends: 609 [2023-11-06 22:03:00,912 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 [2023-11-06 22:03:00,913 INFO L413 NwaCegarLoop]: 610 mSDtfsCounter, 4 mSDsluCounter, 1212 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1822 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:00,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1822 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:00,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 609 states. [2023-11-06 22:03:00,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 609 to 609. [2023-11-06 22:03:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 609 states, 520 states have (on average 1.398076923076923) internal successors, (727), 549 states have internal predecessors, (727), 50 states have call successors, (50), 13 states have call predecessors, (50), 13 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-11-06 22:03:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 825 transitions. [2023-11-06 22:03:00,950 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 825 transitions. Word has length 58 [2023-11-06 22:03:00,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:00,951 INFO L495 AbstractCegarLoop]: Abstraction has 609 states and 825 transitions. [2023-11-06 22:03:00,951 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) [2023-11-06 22:03:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 825 transitions. [2023-11-06 22:03:00,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:03:00,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:00,952 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] [2023-11-06 22:03:00,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-06 22:03:01,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:01,161 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:01,161 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:01,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1117622311, now seen corresponding path program 1 times [2023-11-06 22:03:01,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:01,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971038588] [2023-11-06 22:03:01,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:01,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:01,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:01,469 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:01,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:01,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971038588] [2023-11-06 22:03:01,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971038588] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:01,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:01,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:01,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182073819] [2023-11-06 22:03:01,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:01,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:01,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:01,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:01,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:01,472 INFO L87 Difference]: Start difference. First operand 609 states and 825 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:01,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:01,581 INFO L93 Difference]: Finished difference Result 817 states and 1083 transitions. [2023-11-06 22:03:01,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:01,582 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-11-06 22:03:01,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:01,587 INFO L225 Difference]: With dead ends: 817 [2023-11-06 22:03:01,587 INFO L226 Difference]: Without dead ends: 706 [2023-11-06 22:03:01,588 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:01,589 INFO L413 NwaCegarLoop]: 624 mSDtfsCounter, 217 mSDsluCounter, 2458 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:01,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [217 Valid, 3082 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:01,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2023-11-06 22:03:01,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 686. [2023-11-06 22:03:01,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 686 states, 589 states have (on average 1.4210526315789473) internal successors, (837), 618 states have internal predecessors, (837), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:03:01,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 947 transitions. [2023-11-06 22:03:01,629 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 947 transitions. Word has length 63 [2023-11-06 22:03:01,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:01,629 INFO L495 AbstractCegarLoop]: Abstraction has 686 states and 947 transitions. [2023-11-06 22:03:01,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:01,630 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 947 transitions. [2023-11-06 22:03:01,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:03:01,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:01,631 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] [2023-11-06 22:03:01,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 22:03:01,631 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:01,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:01,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1060364009, now seen corresponding path program 1 times [2023-11-06 22:03:01,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:01,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062499923] [2023-11-06 22:03:01,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:01,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:01,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:01,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:01,881 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:01,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:01,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062499923] [2023-11-06 22:03:01,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062499923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:01,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:01,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:01,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641353153] [2023-11-06 22:03:01,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:01,883 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:01,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:01,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:01,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:01,883 INFO L87 Difference]: Start difference. First operand 686 states and 947 transitions. Second operand has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:01,939 INFO L93 Difference]: Finished difference Result 702 states and 971 transitions. [2023-11-06 22:03:01,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:01,939 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2023-11-06 22:03:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:01,945 INFO L225 Difference]: With dead ends: 702 [2023-11-06 22:03:01,945 INFO L226 Difference]: Without dead ends: 700 [2023-11-06 22:03:01,946 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 [2023-11-06 22:03:01,946 INFO L413 NwaCegarLoop]: 609 mSDtfsCounter, 4 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:01,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1212 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:01,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states. [2023-11-06 22:03:01,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 694. [2023-11-06 22:03:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 694 states, 597 states have (on average 1.4221105527638191) internal successors, (849), 626 states have internal predecessors, (849), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:03:01,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 959 transitions. [2023-11-06 22:03:01,993 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 959 transitions. Word has length 63 [2023-11-06 22:03:01,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:01,993 INFO L495 AbstractCegarLoop]: Abstraction has 694 states and 959 transitions. [2023-11-06 22:03:01,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.0) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:01,994 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 959 transitions. [2023-11-06 22:03:01,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:03:01,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:01,995 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] [2023-11-06 22:03:01,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 22:03:01,995 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:01,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:01,995 INFO L85 PathProgramCache]: Analyzing trace with hash -1144558388, now seen corresponding path program 1 times [2023-11-06 22:03:01,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:01,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696169217] [2023-11-06 22:03:01,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:01,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:02,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:02,350 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:02,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:02,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696169217] [2023-11-06 22:03:02,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696169217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:02,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:02,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:03:02,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985778907] [2023-11-06 22:03:02,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:02,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:03:02,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:02,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:03:02,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:03:02,353 INFO L87 Difference]: Start difference. First operand 694 states and 959 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:02,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:02,429 INFO L93 Difference]: Finished difference Result 1243 states and 1748 transitions. [2023-11-06 22:03:02,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:03:02,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-06 22:03:02,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:02,435 INFO L225 Difference]: With dead ends: 1243 [2023-11-06 22:03:02,435 INFO L226 Difference]: Without dead ends: 674 [2023-11-06 22:03:02,438 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 [2023-11-06 22:03:02,439 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 181 mSDsluCounter, 994 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 1587 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:02,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 1587 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:02,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 674 states. [2023-11-06 22:03:02,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 674 to 674. [2023-11-06 22:03:02,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 674 states, 583 states have (on average 1.4082332761578045) internal successors, (821), 608 states have internal predecessors, (821), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-06 22:03:02,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 674 states to 674 states and 927 transitions. [2023-11-06 22:03:02,504 INFO L78 Accepts]: Start accepts. Automaton has 674 states and 927 transitions. Word has length 65 [2023-11-06 22:03:02,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:02,504 INFO L495 AbstractCegarLoop]: Abstraction has 674 states and 927 transitions. [2023-11-06 22:03:02,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:02,504 INFO L276 IsEmpty]: Start isEmpty. Operand 674 states and 927 transitions. [2023-11-06 22:03:02,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:03:02,511 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:02,511 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] [2023-11-06 22:03:02,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-06 22:03:02,512 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:02,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:02,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1144556466, now seen corresponding path program 1 times [2023-11-06 22:03:02,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694355125] [2023-11-06 22:03:02,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:02,748 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:02,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:02,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694355125] [2023-11-06 22:03:02,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694355125] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:02,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:02,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:03:02,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999863751] [2023-11-06 22:03:02,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:02,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:03:02,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:02,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:03:02,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:03:02,751 INFO L87 Difference]: Start difference. First operand 674 states and 927 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:02,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:02,857 INFO L93 Difference]: Finished difference Result 1236 states and 1728 transitions. [2023-11-06 22:03:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:03:02,857 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-06 22:03:02,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:02,863 INFO L225 Difference]: With dead ends: 1236 [2023-11-06 22:03:02,864 INFO L226 Difference]: Without dead ends: 686 [2023-11-06 22:03:02,866 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 [2023-11-06 22:03:02,867 INFO L413 NwaCegarLoop]: 597 mSDtfsCounter, 6 mSDsluCounter, 1170 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1767 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:02,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1767 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:02,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2023-11-06 22:03:02,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 678. [2023-11-06 22:03:02,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 587 states have (on average 1.405451448040886) internal successors, (825), 612 states have internal predecessors, (825), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-06 22:03:02,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 931 transitions. [2023-11-06 22:03:02,912 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 931 transitions. Word has length 65 [2023-11-06 22:03:02,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:02,913 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 931 transitions. [2023-11-06 22:03:02,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:02,913 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 931 transitions. [2023-11-06 22:03:02,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-06 22:03:02,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:02,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:02,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-06 22:03:02,915 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:02,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:02,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1316726992, now seen corresponding path program 1 times [2023-11-06 22:03:02,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:02,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302795805] [2023-11-06 22:03:02,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:02,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:03,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:03,207 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:03,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:03,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302795805] [2023-11-06 22:03:03,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302795805] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:03,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [775886903] [2023-11-06 22:03:03,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:03,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:03,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:03,210 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:03,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 22:03:03,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:03,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 869 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:03,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:03,842 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:03,842 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:03,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [775886903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:03,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:03,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 22:03:03,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372841254] [2023-11-06 22:03:03,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:03,844 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:03:03,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:03,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:03:03,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:03,845 INFO L87 Difference]: Start difference. First operand 678 states and 931 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:03,918 INFO L93 Difference]: Finished difference Result 684 states and 939 transitions. [2023-11-06 22:03:03,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:03:03,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 67 [2023-11-06 22:03:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:03,923 INFO L225 Difference]: With dead ends: 684 [2023-11-06 22:03:03,923 INFO L226 Difference]: Without dead ends: 683 [2023-11-06 22:03:03,924 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:03,924 INFO L413 NwaCegarLoop]: 594 mSDtfsCounter, 10 mSDsluCounter, 587 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1181 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:03,925 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1181 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:03,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2023-11-06 22:03:03,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 677. [2023-11-06 22:03:03,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 587 states have (on average 1.4020442930153323) internal successors, (823), 611 states have internal predecessors, (823), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-06 22:03:03,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 929 transitions. [2023-11-06 22:03:03,965 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 929 transitions. Word has length 67 [2023-11-06 22:03:03,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:03,966 INFO L495 AbstractCegarLoop]: Abstraction has 677 states and 929 transitions. [2023-11-06 22:03:03,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:03,966 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 929 transitions. [2023-11-06 22:03:03,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:03:03,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:03,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:03,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:04,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:04,176 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:04,176 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:04,176 INFO L85 PathProgramCache]: Analyzing trace with hash -2131135450, now seen corresponding path program 1 times [2023-11-06 22:03:04,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:04,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137713375] [2023-11-06 22:03:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:04,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:04,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:04,433 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:04,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:04,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137713375] [2023-11-06 22:03:04,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137713375] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:04,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1064473901] [2023-11-06 22:03:04,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:04,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:04,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:04,436 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:04,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 22:03:05,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:05,014 INFO L262 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:05,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:05,037 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:05,038 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:05,066 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:05,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1064473901] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:05,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:03:05,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:03:05,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896521017] [2023-11-06 22:03:05,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:05,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:03:05,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:05,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:03:05,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:05,069 INFO L87 Difference]: Start difference. First operand 677 states and 929 transitions. Second operand has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:05,185 INFO L93 Difference]: Finished difference Result 726 states and 1003 transitions. [2023-11-06 22:03:05,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:05,186 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-11-06 22:03:05,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:05,190 INFO L225 Difference]: With dead ends: 726 [2023-11-06 22:03:05,191 INFO L226 Difference]: Without dead ends: 725 [2023-11-06 22:03:05,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:05,193 INFO L413 NwaCegarLoop]: 596 mSDtfsCounter, 17 mSDsluCounter, 1179 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:05,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1775 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:05,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2023-11-06 22:03:05,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 701. [2023-11-06 22:03:05,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 611 states have (on average 1.4058919803600656) internal successors, (859), 635 states have internal predecessors, (859), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-06 22:03:05,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 965 transitions. [2023-11-06 22:03:05,238 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 965 transitions. Word has length 68 [2023-11-06 22:03:05,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:05,238 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 965 transitions. [2023-11-06 22:03:05,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.5) internal successors, (51), 7 states have internal predecessors, (51), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 965 transitions. [2023-11-06 22:03:05,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:03:05,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:05,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:05,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:05,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:05,449 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:05,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:05,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1313759774, now seen corresponding path program 1 times [2023-11-06 22:03:05,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:05,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122392617] [2023-11-06 22:03:05,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:05,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:05,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:05,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:05,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:03:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:05,765 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:03:05,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:05,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122392617] [2023-11-06 22:03:05,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122392617] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:05,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:05,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:03:05,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738283535] [2023-11-06 22:03:05,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:05,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:05,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:05,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:05,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:05,767 INFO L87 Difference]: Start difference. First operand 701 states and 965 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:05,828 INFO L93 Difference]: Finished difference Result 1274 states and 1785 transitions. [2023-11-06 22:03:05,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:05,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2023-11-06 22:03:05,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:05,833 INFO L225 Difference]: With dead ends: 1274 [2023-11-06 22:03:05,834 INFO L226 Difference]: Without dead ends: 707 [2023-11-06 22:03:05,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:05,837 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 5 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:05,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 1179 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:05,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-11-06 22:03:05,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 701. [2023-11-06 22:03:05,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 701 states, 611 states have (on average 1.4026186579378068) internal successors, (857), 635 states have internal predecessors, (857), 54 states have call successors, (54), 15 states have call predecessors, (54), 15 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2023-11-06 22:03:05,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 701 states to 701 states and 963 transitions. [2023-11-06 22:03:05,874 INFO L78 Accepts]: Start accepts. Automaton has 701 states and 963 transitions. Word has length 72 [2023-11-06 22:03:05,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:05,875 INFO L495 AbstractCegarLoop]: Abstraction has 701 states and 963 transitions. [2023-11-06 22:03:05,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:05,875 INFO L276 IsEmpty]: Start isEmpty. Operand 701 states and 963 transitions. [2023-11-06 22:03:05,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:03:05,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:05,876 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:05,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 22:03:05,877 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:05,878 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:05,879 INFO L85 PathProgramCache]: Analyzing trace with hash 793448314, now seen corresponding path program 1 times [2023-11-06 22:03:05,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:05,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218878831] [2023-11-06 22:03:05,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:05,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:05,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:06,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:06,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:03:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:06,465 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:03:06,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218878831] [2023-11-06 22:03:06,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218878831] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:06,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:06,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:03:06,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489752771] [2023-11-06 22:03:06,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:06,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:06,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:06,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:06,467 INFO L87 Difference]: Start difference. First operand 701 states and 963 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:06,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:06,624 INFO L93 Difference]: Finished difference Result 1335 states and 1863 transitions. [2023-11-06 22:03:06,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:03:06,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-06 22:03:06,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:06,631 INFO L225 Difference]: With dead ends: 1335 [2023-11-06 22:03:06,631 INFO L226 Difference]: Without dead ends: 821 [2023-11-06 22:03:06,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:03:06,634 INFO L413 NwaCegarLoop]: 601 mSDtfsCounter, 107 mSDsluCounter, 1775 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:06,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2376 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:06,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2023-11-06 22:03:06,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 735. [2023-11-06 22:03:06,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 735 states, 643 states have (on average 1.3981337480559877) internal successors, (899), 667 states have internal predecessors, (899), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:03:06,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 735 states to 735 states and 1009 transitions. [2023-11-06 22:03:06,677 INFO L78 Accepts]: Start accepts. Automaton has 735 states and 1009 transitions. Word has length 73 [2023-11-06 22:03:06,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:06,678 INFO L495 AbstractCegarLoop]: Abstraction has 735 states and 1009 transitions. [2023-11-06 22:03:06,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:06,678 INFO L276 IsEmpty]: Start isEmpty. Operand 735 states and 1009 transitions. [2023-11-06 22:03:06,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:03:06,679 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:06,680 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:06,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 22:03:06,680 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:06,680 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:06,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1172905262, now seen corresponding path program 1 times [2023-11-06 22:03:06,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:06,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613549391] [2023-11-06 22:03:06,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:06,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:06,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:07,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:07,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:07,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-06 22:03:07,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:07,212 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:03:07,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:07,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613549391] [2023-11-06 22:03:07,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613549391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:07,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:07,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:03:07,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234197091] [2023-11-06 22:03:07,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:07,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:07,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:07,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:07,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:07,214 INFO L87 Difference]: Start difference. First operand 735 states and 1009 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:07,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:07,388 INFO L93 Difference]: Finished difference Result 821 states and 1127 transitions. [2023-11-06 22:03:07,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:03:07,388 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 74 [2023-11-06 22:03:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:07,394 INFO L225 Difference]: With dead ends: 821 [2023-11-06 22:03:07,395 INFO L226 Difference]: Without dead ends: 819 [2023-11-06 22:03:07,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:03:07,396 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 99 mSDsluCounter, 1776 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 2380 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:07,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 2380 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:07,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 819 states. [2023-11-06 22:03:07,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 819 to 737. [2023-11-06 22:03:07,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 737 states, 645 states have (on average 1.3937984496124032) internal successors, (899), 669 states have internal predecessors, (899), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:03:07,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 1009 transitions. [2023-11-06 22:03:07,446 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 1009 transitions. Word has length 74 [2023-11-06 22:03:07,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:07,446 INFO L495 AbstractCegarLoop]: Abstraction has 737 states and 1009 transitions. [2023-11-06 22:03:07,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:07,446 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 1009 transitions. [2023-11-06 22:03:07,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-06 22:03:07,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:07,448 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, 1, 1, 1, 1, 1] [2023-11-06 22:03:07,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 22:03:07,448 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:07,449 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:07,449 INFO L85 PathProgramCache]: Analyzing trace with hash 1796040980, now seen corresponding path program 1 times [2023-11-06 22:03:07,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:07,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787641344] [2023-11-06 22:03:07,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:07,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:07,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:07,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:07,833 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:07,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:07,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787641344] [2023-11-06 22:03:07,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787641344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:07,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:07,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:03:07,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762166879] [2023-11-06 22:03:07,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:07,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:03:07,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:07,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:03:07,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:07,836 INFO L87 Difference]: Start difference. First operand 737 states and 1009 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:08,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:08,625 INFO L93 Difference]: Finished difference Result 1272 states and 1749 transitions. [2023-11-06 22:03:08,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:03:08,625 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 74 [2023-11-06 22:03:08,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:08,632 INFO L225 Difference]: With dead ends: 1272 [2023-11-06 22:03:08,632 INFO L226 Difference]: Without dead ends: 746 [2023-11-06 22:03:08,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:08,635 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 4 mSDsluCounter, 1576 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2168 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:08,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2168 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:03:08,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-11-06 22:03:08,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 741. [2023-11-06 22:03:08,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 649 states have (on average 1.391371340523883) internal successors, (903), 673 states have internal predecessors, (903), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:03:08,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1013 transitions. [2023-11-06 22:03:08,695 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1013 transitions. Word has length 74 [2023-11-06 22:03:08,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:08,696 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1013 transitions. [2023-11-06 22:03:08,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1013 transitions. [2023-11-06 22:03:08,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:03:08,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:08,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:08,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 22:03:08,698 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:08,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:08,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1553774153, now seen corresponding path program 1 times [2023-11-06 22:03:08,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:08,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672660555] [2023-11-06 22:03:08,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:08,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:09,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:09,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2023-11-06 22:03:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:09,267 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:03:09,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:09,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672660555] [2023-11-06 22:03:09,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672660555] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:09,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357431083] [2023-11-06 22:03:09,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:09,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:09,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:09,273 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:09,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 22:03:09,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:09,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 880 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:03:09,933 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:03:09,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:09,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357431083] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:09,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:09,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-11-06 22:03:09,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417433004] [2023-11-06 22:03:09,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:09,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:03:09,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:09,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:03:09,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:03:09,986 INFO L87 Difference]: Start difference. First operand 741 states and 1013 transitions. Second operand has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:10,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:10,092 INFO L93 Difference]: Finished difference Result 1327 states and 1849 transitions. [2023-11-06 22:03:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:03:10,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2023-11-06 22:03:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:10,098 INFO L225 Difference]: With dead ends: 1327 [2023-11-06 22:03:10,098 INFO L226 Difference]: Without dead ends: 741 [2023-11-06 22:03:10,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:03:10,102 INFO L413 NwaCegarLoop]: 592 mSDtfsCounter, 2 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2344 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 [2023-11-06 22:03:10,106 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2344 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:10,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2023-11-06 22:03:10,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 741. [2023-11-06 22:03:10,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 649 states have (on average 1.37904468412943) internal successors, (895), 673 states have internal predecessors, (895), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:03:10,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1005 transitions. [2023-11-06 22:03:10,183 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1005 transitions. Word has length 76 [2023-11-06 22:03:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:10,184 INFO L495 AbstractCegarLoop]: Abstraction has 741 states and 1005 transitions. [2023-11-06 22:03:10,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.75) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:10,184 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1005 transitions. [2023-11-06 22:03:10,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:03:10,186 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:10,186 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, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:10,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:10,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-06 22:03:10,395 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:10,395 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:10,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1102090996, now seen corresponding path program 1 times [2023-11-06 22:03:10,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:10,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394072167] [2023-11-06 22:03:10,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:10,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:10,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:10,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:10,669 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:10,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:10,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394072167] [2023-11-06 22:03:10,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394072167] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:10,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:10,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:10,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036526261] [2023-11-06 22:03:10,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:10,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:10,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:10,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:10,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:10,672 INFO L87 Difference]: Start difference. First operand 741 states and 1005 transitions. Second operand has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:10,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:10,714 INFO L93 Difference]: Finished difference Result 745 states and 1009 transitions. [2023-11-06 22:03:10,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:10,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-06 22:03:10,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:10,720 INFO L225 Difference]: With dead ends: 745 [2023-11-06 22:03:10,720 INFO L226 Difference]: Without dead ends: 743 [2023-11-06 22:03:10,721 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 [2023-11-06 22:03:10,722 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 1 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1182 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 [2023-11-06 22:03:10,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1182 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:10,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 743 states. [2023-11-06 22:03:10,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 743 to 743. [2023-11-06 22:03:10,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 651 states have (on average 1.3778801843317972) internal successors, (897), 675 states have internal predecessors, (897), 56 states have call successors, (56), 15 states have call predecessors, (56), 15 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-11-06 22:03:10,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 1007 transitions. [2023-11-06 22:03:10,771 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 1007 transitions. Word has length 75 [2023-11-06 22:03:10,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:10,771 INFO L495 AbstractCegarLoop]: Abstraction has 743 states and 1007 transitions. [2023-11-06 22:03:10,771 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 22.0) internal successors, (44), 3 states have internal predecessors, (44), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 1007 transitions. [2023-11-06 22:03:10,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:03:10,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:10,774 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:03:10,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 22:03:10,774 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:10,774 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:10,775 INFO L85 PathProgramCache]: Analyzing trace with hash -507313165, now seen corresponding path program 1 times [2023-11-06 22:03:10,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:10,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448615075] [2023-11-06 22:03:10,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:10,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-06 22:03:11,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:03:11,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:11,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448615075] [2023-11-06 22:03:11,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448615075] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:11,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108714693] [2023-11-06 22:03:11,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:11,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:11,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:11,369 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:11,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 22:03:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:12,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 906 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 22:03:12,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:12,159 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:03:12,159 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:12,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108714693] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:12,159 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:12,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-06 22:03:12,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324170164] [2023-11-06 22:03:12,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:12,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:12,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:12,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:12,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:03:12,162 INFO L87 Difference]: Start difference. First operand 743 states and 1007 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:12,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:12,336 INFO L93 Difference]: Finished difference Result 1190 states and 1609 transitions. [2023-11-06 22:03:12,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:12,337 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-06 22:03:12,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:12,341 INFO L225 Difference]: With dead ends: 1190 [2023-11-06 22:03:12,341 INFO L226 Difference]: Without dead ends: 640 [2023-11-06 22:03:12,343 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:03:12,344 INFO L413 NwaCegarLoop]: 579 mSDtfsCounter, 171 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:12,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [182 Valid, 2290 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:12,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 640 states. [2023-11-06 22:03:12,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 640 to 640. [2023-11-06 22:03:12,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 559 states have (on average 1.368515205724508) internal successors, (765), 581 states have internal predecessors, (765), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-06 22:03:12,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 854 transitions. [2023-11-06 22:03:12,381 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 854 transitions. Word has length 77 [2023-11-06 22:03:12,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:12,381 INFO L495 AbstractCegarLoop]: Abstraction has 640 states and 854 transitions. [2023-11-06 22:03:12,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:12,381 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 854 transitions. [2023-11-06 22:03:12,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-06 22:03:12,382 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:12,383 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 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] [2023-11-06 22:03:12,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:12,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-06 22:03:12,597 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:12,597 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:12,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1619592598, now seen corresponding path program 1 times [2023-11-06 22:03:12,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:12,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108558563] [2023-11-06 22:03:12,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:12,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:12,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:12,866 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-06 22:03:12,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:12,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108558563] [2023-11-06 22:03:12,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108558563] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:12,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354849583] [2023-11-06 22:03:12,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:12,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:12,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:12,868 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:12,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 22:03:13,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:13,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:03:13,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:13,679 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:03:13,679 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:03:13,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354849583] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:13,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:03:13,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 22:03:13,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37919304] [2023-11-06 22:03:13,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:13,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 22:03:13,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:13,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 22:03:13,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:03:13,781 INFO L87 Difference]: Start difference. First operand 640 states and 854 transitions. Second operand has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 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) [2023-11-06 22:03:13,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:13,942 INFO L93 Difference]: Finished difference Result 1262 states and 1700 transitions. [2023-11-06 22:03:13,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 22:03:13,942 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 75 [2023-11-06 22:03:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:13,948 INFO L225 Difference]: With dead ends: 1262 [2023-11-06 22:03:13,948 INFO L226 Difference]: Without dead ends: 675 [2023-11-06 22:03:13,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:03:13,951 INFO L413 NwaCegarLoop]: 587 mSDtfsCounter, 6 mSDsluCounter, 2919 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3506 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:13,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3506 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:13,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states. [2023-11-06 22:03:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2023-11-06 22:03:14,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 595 states have (on average 1.3445378151260505) internal successors, (800), 616 states have internal predecessors, (800), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-06 22:03:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 889 transitions. [2023-11-06 22:03:14,039 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 889 transitions. Word has length 75 [2023-11-06 22:03:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:14,039 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 889 transitions. [2023-11-06 22:03:14,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.857142857142857) internal successors, (82), 14 states have internal predecessors, (82), 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) [2023-11-06 22:03:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 889 transitions. [2023-11-06 22:03:14,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-06 22:03:14,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:14,041 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:14,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:14,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-06 22:03:14,250 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:14,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:14,251 INFO L85 PathProgramCache]: Analyzing trace with hash 862795104, now seen corresponding path program 1 times [2023-11-06 22:03:14,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:14,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574601681] [2023-11-06 22:03:14,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:14,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:14,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:14,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:14,598 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:03:14,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:14,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574601681] [2023-11-06 22:03:14,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574601681] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:14,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [469521320] [2023-11-06 22:03:14,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:14,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:14,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:14,600 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:14,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-06 22:03:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:15,400 INFO L262 TraceCheckSpWp]: Trace formula consists of 986 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:15,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:15,425 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:03:15,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:15,464 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:03:15,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [469521320] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:15,465 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:03:15,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 22:03:15,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187501191] [2023-11-06 22:03:15,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:15,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:03:15,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:15,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:03:15,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:15,468 INFO L87 Difference]: Start difference. First operand 675 states and 889 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 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) [2023-11-06 22:03:15,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:15,543 INFO L93 Difference]: Finished difference Result 685 states and 901 transitions. [2023-11-06 22:03:15,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:15,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 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 94 [2023-11-06 22:03:15,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:15,549 INFO L225 Difference]: With dead ends: 685 [2023-11-06 22:03:15,550 INFO L226 Difference]: Without dead ends: 684 [2023-11-06 22:03:15,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:15,551 INFO L413 NwaCegarLoop]: 591 mSDtfsCounter, 0 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1767 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 [2023-11-06 22:03:15,552 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1767 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:15,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 684 states. [2023-11-06 22:03:15,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 684 to 684. [2023-11-06 22:03:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 604 states have (on average 1.3394039735099337) internal successors, (809), 625 states have internal predecessors, (809), 45 states have call successors, (45), 15 states have call predecessors, (45), 15 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-06 22:03:15,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 898 transitions. [2023-11-06 22:03:15,599 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 898 transitions. Word has length 94 [2023-11-06 22:03:15,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:15,600 INFO L495 AbstractCegarLoop]: Abstraction has 684 states and 898 transitions. [2023-11-06 22:03:15,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 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) [2023-11-06 22:03:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 898 transitions. [2023-11-06 22:03:15,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-06 22:03:15,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:15,602 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 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, 1, 1, 1] [2023-11-06 22:03:15,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:15,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-11-06 22:03:15,813 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:15,813 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:15,813 INFO L85 PathProgramCache]: Analyzing trace with hash -647916217, now seen corresponding path program 2 times [2023-11-06 22:03:15,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:15,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945657493] [2023-11-06 22:03:15,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:15,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:15,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:16,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:16,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:16,362 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:03:16,362 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:16,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945657493] [2023-11-06 22:03:16,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945657493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:16,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888818119] [2023-11-06 22:03:16,363 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:03:16,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:16,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:16,365 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:16,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-06 22:03:17,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:03:17,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:03:17,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 455 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:17,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:17,222 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:03:17,222 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-06 22:03:17,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888818119] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:17,353 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 22:03:17,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-06 22:03:17,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239490444] [2023-11-06 22:03:17,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:17,355 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:17,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:17,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:17,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:17,356 INFO L87 Difference]: Start difference. First operand 684 states and 898 transitions. Second operand has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2023-11-06 22:03:17,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:17,457 INFO L93 Difference]: Finished difference Result 684 states and 898 transitions. [2023-11-06 22:03:17,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:17,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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 103 [2023-11-06 22:03:17,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:17,462 INFO L225 Difference]: With dead ends: 684 [2023-11-06 22:03:17,462 INFO L226 Difference]: Without dead ends: 648 [2023-11-06 22:03:17,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:17,463 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 132 mSDsluCounter, 1427 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:17,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2010 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:17,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2023-11-06 22:03:17,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 646. [2023-11-06 22:03:17,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 646 states, 569 states have (on average 1.3339191564147628) internal successors, (759), 589 states have internal predecessors, (759), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:03:17,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 846 transitions. [2023-11-06 22:03:17,501 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 846 transitions. Word has length 103 [2023-11-06 22:03:17,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:17,501 INFO L495 AbstractCegarLoop]: Abstraction has 646 states and 846 transitions. [2023-11-06 22:03:17,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 13.0) internal successors, (65), 6 states have internal predecessors, (65), 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) [2023-11-06 22:03:17,502 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 846 transitions. [2023-11-06 22:03:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-06 22:03:17,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:17,504 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] [2023-11-06 22:03:17,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:17,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:17,713 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:17,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:17,713 INFO L85 PathProgramCache]: Analyzing trace with hash 306424450, now seen corresponding path program 1 times [2023-11-06 22:03:17,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:17,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375250157] [2023-11-06 22:03:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:17,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:18,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:18,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-11-06 22:03:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:18,459 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 22:03:18,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:18,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375250157] [2023-11-06 22:03:18,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375250157] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:03:18,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130546472] [2023-11-06 22:03:18,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:18,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:03:18,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:18,462 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:03:18,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-06 22:03:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:19,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 1199 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 22:03:19,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:19,578 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 22:03:19,578 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:19,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130546472] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:19,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:03:19,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2023-11-06 22:03:19,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205332984] [2023-11-06 22:03:19,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:19,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 22:03:19,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:19,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 22:03:19,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:03:19,582 INFO L87 Difference]: Start difference. First operand 646 states and 846 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:19,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:19,803 INFO L93 Difference]: Finished difference Result 1186 states and 1593 transitions. [2023-11-06 22:03:19,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:03:19,804 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 112 [2023-11-06 22:03:19,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:19,810 INFO L225 Difference]: With dead ends: 1186 [2023-11-06 22:03:19,810 INFO L226 Difference]: Without dead ends: 757 [2023-11-06 22:03:19,813 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-06 22:03:19,814 INFO L413 NwaCegarLoop]: 631 mSDtfsCounter, 216 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 2434 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:19,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 2434 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:19,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2023-11-06 22:03:19,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 643. [2023-11-06 22:03:19,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 569 states have (on average 1.3216168717047452) internal successors, (752), 586 states have internal predecessors, (752), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:03:19,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 839 transitions. [2023-11-06 22:03:19,873 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 839 transitions. Word has length 112 [2023-11-06 22:03:19,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:19,874 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 839 transitions. [2023-11-06 22:03:19,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 7 states have internal predecessors, (49), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:03:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 839 transitions. [2023-11-06 22:03:19,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 22:03:19,876 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:19,876 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] [2023-11-06 22:03:19,894 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:20,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2023-11-06 22:03:20,094 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:20,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:20,094 INFO L85 PathProgramCache]: Analyzing trace with hash 775358462, now seen corresponding path program 1 times [2023-11-06 22:03:20,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:20,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051671322] [2023-11-06 22:03:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:20,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:20,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:20,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:03:20,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 22:03:20,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:03:20,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051671322] [2023-11-06 22:03:20,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051671322] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:20,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:20,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:20,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410922968] [2023-11-06 22:03:20,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:20,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:20,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:03:20,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:20,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:20,433 INFO L87 Difference]: Start difference. First operand 643 states and 839 transitions. Second operand has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:20,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:20,483 INFO L93 Difference]: Finished difference Result 643 states and 839 transitions. [2023-11-06 22:03:20,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:20,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 111 [2023-11-06 22:03:20,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:20,489 INFO L225 Difference]: With dead ends: 643 [2023-11-06 22:03:20,489 INFO L226 Difference]: Without dead ends: 642 [2023-11-06 22:03:20,491 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 [2023-11-06 22:03:20,492 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 2 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1144 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:20,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1144 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:20,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-11-06 22:03:20,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2023-11-06 22:03:20,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 569 states have (on average 1.3198594024604569) internal successors, (751), 585 states have internal predecessors, (751), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:03:20,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 838 transitions. [2023-11-06 22:03:20,611 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 838 transitions. Word has length 111 [2023-11-06 22:03:20,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:20,611 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 838 transitions. [2023-11-06 22:03:20,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 26.5) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:20,612 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 838 transitions. [2023-11-06 22:03:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:03:20,614 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:20,614 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] [2023-11-06 22:03:20,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-06 22:03:20,614 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 42 more)] === [2023-11-06 22:03:20,615 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:20,615 INFO L85 PathProgramCache]: Analyzing trace with hash 909224138, now seen corresponding path program 1 times [2023-11-06 22:03:20,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:03:20,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077606538] [2023-11-06 22:03:20,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:20,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:03:21,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:03:21,196 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:03:21,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:03:21,636 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:03:21,636 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:03:21,637 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 44 remaining) [2023-11-06 22:03:21,639 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 44 remaining) [2023-11-06 22:03:21,640 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 44 remaining) [2023-11-06 22:03:21,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 44 remaining) [2023-11-06 22:03:21,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 44 remaining) [2023-11-06 22:03:21,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 44 remaining) [2023-11-06 22:03:21,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 44 remaining) [2023-11-06 22:03:21,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 44 remaining) [2023-11-06 22:03:21,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 44 remaining) [2023-11-06 22:03:21,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 44 remaining) [2023-11-06 22:03:21,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 44 remaining) [2023-11-06 22:03:21,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 44 remaining) [2023-11-06 22:03:21,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 44 remaining) [2023-11-06 22:03:21,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 44 remaining) [2023-11-06 22:03:21,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 44 remaining) [2023-11-06 22:03:21,644 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 44 remaining) [2023-11-06 22:03:21,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 44 remaining) [2023-11-06 22:03:21,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 44 remaining) [2023-11-06 22:03:21,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 44 remaining) [2023-11-06 22:03:21,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 44 remaining) [2023-11-06 22:03:21,645 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 44 remaining) [2023-11-06 22:03:21,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 44 remaining) [2023-11-06 22:03:21,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 44 remaining) [2023-11-06 22:03:21,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 44 remaining) [2023-11-06 22:03:21,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 44 remaining) [2023-11-06 22:03:21,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 44 remaining) [2023-11-06 22:03:21,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 44 remaining) [2023-11-06 22:03:21,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 44 remaining) [2023-11-06 22:03:21,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 44 remaining) [2023-11-06 22:03:21,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 44 remaining) [2023-11-06 22:03:21,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 44 remaining) [2023-11-06 22:03:21,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 44 remaining) [2023-11-06 22:03:21,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 44 remaining) [2023-11-06 22:03:21,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 44 remaining) [2023-11-06 22:03:21,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 44 remaining) [2023-11-06 22:03:21,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 44 remaining) [2023-11-06 22:03:21,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 44 remaining) [2023-11-06 22:03:21,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 44 remaining) [2023-11-06 22:03:21,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 44 remaining) [2023-11-06 22:03:21,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 44 remaining) [2023-11-06 22:03:21,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 44 remaining) [2023-11-06 22:03:21,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 44 remaining) [2023-11-06 22:03:21,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 44 remaining) [2023-11-06 22:03:21,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 44 remaining) [2023-11-06 22:03:21,650 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-06 22:03:21,654 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:21,659 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:03:21,782 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:03:21,792 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:03:21,793 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:03:21,795 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #varArgs [2023-11-06 22:03:21,795 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-06 22:03:21,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:03:21 BoogieIcfgContainer [2023-11-06 22:03:21,823 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:03:21,824 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:03:21,824 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:03:21,824 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:03:21,825 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:02:49" (3/4) ... [2023-11-06 22:03:21,827 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:03:21,828 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:03:21,829 INFO L158 Benchmark]: Toolchain (without parser) took 37655.43ms. Allocated memory was 157.3MB in the beginning and 566.2MB in the end (delta: 408.9MB). Free memory was 119.7MB in the beginning and 313.4MB in the end (delta: -193.7MB). Peak memory consumption was 217.8MB. Max. memory is 16.1GB. [2023-11-06 22:03:21,830 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 52.1MB in the beginning and 51.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:03:21,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2572.92ms. Allocated memory is still 157.3MB. Free memory was 119.7MB in the beginning and 96.3MB in the end (delta: 23.4MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2023-11-06 22:03:21,830 INFO L158 Benchmark]: Boogie Procedure Inliner took 257.03ms. Allocated memory is still 157.3MB. Free memory was 96.3MB in the beginning and 85.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:03:21,831 INFO L158 Benchmark]: Boogie Preprocessor took 200.99ms. Allocated memory is still 157.3MB. Free memory was 85.1MB in the beginning and 73.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-06 22:03:21,831 INFO L158 Benchmark]: RCFGBuilder took 2607.85ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 73.1MB in the beginning and 94.9MB in the end (delta: -21.7MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2023-11-06 22:03:21,831 INFO L158 Benchmark]: TraceAbstraction took 32000.01ms. Allocated memory was 213.9MB in the beginning and 566.2MB in the end (delta: 352.3MB). Free memory was 94.9MB in the beginning and 313.4MB in the end (delta: -218.5MB). Peak memory consumption was 133.8MB. Max. memory is 16.1GB. [2023-11-06 22:03:21,832 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 566.2MB. Free memory is still 313.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:03:21,833 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 102.8MB. Free memory was 52.1MB in the beginning and 51.9MB in the end (delta: 142.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2572.92ms. Allocated memory is still 157.3MB. Free memory was 119.7MB in the beginning and 96.3MB in the end (delta: 23.4MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 257.03ms. Allocated memory is still 157.3MB. Free memory was 96.3MB in the beginning and 85.1MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 200.99ms. Allocated memory is still 157.3MB. Free memory was 85.1MB in the beginning and 73.1MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2607.85ms. Allocated memory was 157.3MB in the beginning and 213.9MB in the end (delta: 56.6MB). Free memory was 73.1MB in the beginning and 94.9MB in the end (delta: -21.7MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * TraceAbstraction took 32000.01ms. Allocated memory was 213.9MB in the beginning and 566.2MB in the end (delta: 352.3MB). Free memory was 94.9MB in the beginning and 313.4MB in the end (delta: -218.5MB). Peak memory consumption was 133.8MB. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 566.2MB. Free memory is still 313.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #varArgs - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 2596]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of strlen at line 2593. Possible FailurePath: [L2370] static const char *applet_name; [L2371] static signed int bb_errno_location; [L2372] static signed int * const bb_errno = &bb_errno_location; [L2373] static const char bb_msg_memory_exhausted[14l] = { (const char)111, (const char)117, (const char)116, (const char)32, (const char)111, (const char)102, (const char)32, (const char)109, (const char)101, (const char)109, (const char)111, (const char)114, (const char)121, (const char)0 }; [L2374] static struct __jmp_buf_tag die_jmp[1l]; [L2375] static signed int die_sleep; [L2376] static char local_buf[(signed long int)(sizeof(signed int) * 3) ]; [L2377] static signed char logmode = (signed char)1; [L2378] static const char *msg_eol = "\n"; [L2379] static unsigned char xfunc_error_retval = (unsigned char)1; [L2445] static const char charmap[20l] = { (const char)97, (const char)98, (const char)101, (const char)102, (const char)110, (const char)114, (const char)116, (const char)118, (const char)92, (const char)0, (const char)7, (const char)8, (const char)27, (const char)12, (const char)10, (const char)13, (const char)9, (const char)11, (const char)92, (const char)92 }; [L3133] static const char format_chars[14l] = { (const char)100, (const char)105, (const char)111, (const char)117, (const char)120, (const char)88, (const char)102, (const char)101, (const char)69, (const char)103, (const char)71, (const char)99, (const char)115, (const char)0 }; [L3336] static struct utmp dummy_utmp; VAL [applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3418] char *a = malloc(11); [L3419] a[10] = 0 [L3420] int i=0; VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=1, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=2, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=3, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=4, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=5, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=6, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=7, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=8, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=9, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND FALSE !(i<10) VAL [a={21:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3422] applet_name = a [L3423] bb_errno_location = __VERIFIER_nondet_int() [L3424] optind = 1 [L3425] int argc = __VERIFIER_nondet_int(); [L3426] CALL assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [\old(cond)=1, applet_name={21:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, applet_name={21:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, cond=1, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3426] RET assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [a={21:0}, applet_name={21:0}, argc=1, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3427] EXPR argc+1 [L3427] char **argv=malloc((argc+1)*sizeof(char*)); [L3428] EXPR argc+1 [L3428] char **mem_track=malloc((argc+1)*sizeof(char*)); [L3429] argv[argc]=0 [L3430] int i=0; VAL [a={21:0}, applet_name={21:0}, argc=1, argv={-13:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, mem_track={-14:0}, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3430] COND TRUE i main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> c63b21f7a682a04747e33e99b370c56eb0587876361598f770f41e1686fc8817 [2023-11-06 22:03:25,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:03:25,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:03:25,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:03:25,464 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:03:25,465 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:03:25,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/printf-2.i [2023-11-06 22:03:28,931 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:03:29,563 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:03:29,565 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/sv-benchmarks/c/busybox-1.22.0/printf-2.i [2023-11-06 22:03:29,615 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/data/ecd88b7e0/70c0a08249ee43f2b73fc1f197572e47/FLAG08f13c2dc [2023-11-06 22:03:29,635 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/data/ecd88b7e0/70c0a08249ee43f2b73fc1f197572e47 [2023-11-06 22:03:29,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:03:29,643 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:03:29,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:29,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:03:29,653 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:03:29,654 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:29" (1/1) ... [2023-11-06 22:03:29,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e271e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:29, skipping insertion in model container [2023-11-06 22:03:29,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:03:29" (1/1) ... [2023-11-06 22:03:29,779 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:03:31,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:31,809 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-06 22:03:31,850 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:03:32,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:32,081 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:03:32,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:03:32,692 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,693 WARN L672 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,693 WARN L672 CHandler]: The function strtol is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,693 WARN L672 CHandler]: The function strstr is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,694 WARN L672 CHandler]: The function putchar is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,694 WARN L672 CHandler]: The function strtoll is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,694 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,694 WARN L672 CHandler]: The function convert is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:03:32,704 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:03:32,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32 WrapperNode [2023-11-06 22:03:32,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:03:32,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:32,707 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:03:32,707 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:03:32,716 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:32,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:32,922 INFO L138 Inliner]: procedures = 662, calls = 521, calls flagged for inlining = 31, calls inlined = 29, statements flattened = 1504 [2023-11-06 22:03:32,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:03:32,924 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:03:32,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:03:32,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:03:32,939 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:32,939 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,000 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,155 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,169 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,193 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,207 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,230 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:03:33,232 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:03:33,232 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:03:33,232 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:03:33,233 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (1/1) ... [2023-11-06 22:03:33,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:03:33,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:03:33,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:03:33,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:03:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure putchar [2023-11-06 22:03:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure bb_putchar [2023-11-06 22:03:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_putchar [2023-11-06 22:03:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-06 22:03:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure strstr [2023-11-06 22:03:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:03:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-06 22:03:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2023-11-06 22:03:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure ret_ERANGE [2023-11-06 22:03:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ret_ERANGE [2023-11-06 22:03:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 22:03:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 22:03:33,335 INFO L130 BoogieDeclarations]: Found specification of procedure get_width_prec [2023-11-06 22:03:33,336 INFO L138 BoogieDeclarations]: Found implementation of procedure get_width_prec [2023-11-06 22:03:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2023-11-06 22:03:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 22:03:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 22:03:33,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:03:33,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 22:03:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2023-11-06 22:03:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2023-11-06 22:03:33,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2023-11-06 22:03:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2023-11-06 22:03:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:03:33,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:03:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-06 22:03:33,340 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-06 22:03:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-11-06 22:03:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 22:03:33,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 22:03:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2023-11-06 22:03:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-06 22:03:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 22:03:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 22:03:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure handle_errors [2023-11-06 22:03:33,341 INFO L138 BoogieDeclarations]: Found implementation of procedure handle_errors [2023-11-06 22:03:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-06 22:03:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure bb_process_escape_sequence [2023-11-06 22:03:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_process_escape_sequence [2023-11-06 22:03:33,342 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 22:03:33,342 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 22:03:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure print_direc [2023-11-06 22:03:33,343 INFO L138 BoogieDeclarations]: Found implementation of procedure print_direc [2023-11-06 22:03:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:03:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 22:03:33,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2023-11-06 22:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2023-11-06 22:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-06 22:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 22:03:33,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intFLOATTYPE8 [2023-11-06 22:03:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2023-11-06 22:03:33,345 INFO L130 BoogieDeclarations]: Found specification of procedure bb_ascii_isalnum [2023-11-06 22:03:33,345 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_ascii_isalnum [2023-11-06 22:03:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-06 22:03:33,346 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2023-11-06 22:03:33,347 INFO L130 BoogieDeclarations]: Found specification of procedure bb_strtoll [2023-11-06 22:03:33,347 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_strtoll [2023-11-06 22:03:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2023-11-06 22:03:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2023-11-06 22:03:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2023-11-06 22:03:33,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2023-11-06 22:03:33,349 INFO L130 BoogieDeclarations]: Found specification of procedure multiconvert [2023-11-06 22:03:33,349 INFO L138 BoogieDeclarations]: Found implementation of procedure multiconvert [2023-11-06 22:03:33,350 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg [2023-11-06 22:03:33,350 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg [2023-11-06 22:03:34,027 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:03:34,030 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:03:42,424 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:03:42,436 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:03:42,436 INFO L302 CfgBuilder]: Removed 18 assume(true) statements. [2023-11-06 22:03:42,439 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:42 BoogieIcfgContainer [2023-11-06 22:03:42,440 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:03:42,442 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:03:42,442 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:03:42,446 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:03:42,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:03:29" (1/3) ... [2023-11-06 22:03:42,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60186e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:42, skipping insertion in model container [2023-11-06 22:03:42,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:03:32" (2/3) ... [2023-11-06 22:03:42,448 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60186e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:03:42, skipping insertion in model container [2023-11-06 22:03:42,448 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:42" (3/3) ... [2023-11-06 22:03:42,449 INFO L112 eAbstractionObserver]: Analyzing ICFG printf-2.i [2023-11-06 22:03:42,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:03:42,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 44 error locations. [2023-11-06 22:03:42,563 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:03:42,577 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@44a2333c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:03:42,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2023-11-06 22:03:42,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 478 states, 366 states have (on average 1.6038251366120218) internal successors, (587), 425 states have internal predecessors, (587), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) [2023-11-06 22:03:42,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 22:03:42,602 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:42,603 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 22:03:42,604 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:42,609 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:42,610 INFO L85 PathProgramCache]: Analyzing trace with hash 27923333, now seen corresponding path program 1 times [2023-11-06 22:03:42,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:42,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [952757427] [2023-11-06 22:03:42,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:42,628 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:42,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:42,640 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:42,649 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-06 22:03:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:43,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-06 22:03:43,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:43,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:43,158 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:43,160 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:43,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [952757427] [2023-11-06 22:03:43,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [952757427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:43,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:43,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-06 22:03:43,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439168571] [2023-11-06 22:03:43,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:43,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-06 22:03:43,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:43,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 22:03:43,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:03:43,209 INFO L87 Difference]: Start difference. First operand has 478 states, 366 states have (on average 1.6038251366120218) internal successors, (587), 425 states have internal predecessors, (587), 53 states have call successors, (53), 14 states have call predecessors, (53), 14 states have return successors, (53), 53 states have call predecessors, (53), 53 states have call successors, (53) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:43,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:43,383 INFO L93 Difference]: Finished difference Result 923 states and 1397 transitions. [2023-11-06 22:03:43,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 22:03:43,385 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 22:03:43,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:43,408 INFO L225 Difference]: With dead ends: 923 [2023-11-06 22:03:43,409 INFO L226 Difference]: Without dead ends: 431 [2023-11-06 22:03:43,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 22:03:43,425 INFO L413 NwaCegarLoop]: 621 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:43,430 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:43,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2023-11-06 22:03:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 431. [2023-11-06 22:03:43,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 359 states have (on average 1.4233983286908078) internal successors, (511), 380 states have internal predecessors, (511), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:43,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 588 transitions. [2023-11-06 22:03:43,567 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 588 transitions. Word has length 4 [2023-11-06 22:03:43,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:43,568 INFO L495 AbstractCegarLoop]: Abstraction has 431 states and 588 transitions. [2023-11-06 22:03:43,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:43,568 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 588 transitions. [2023-11-06 22:03:43,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-06 22:03:43,569 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:43,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-06 22:03:43,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:43,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:43,790 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:43,791 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:43,791 INFO L85 PathProgramCache]: Analyzing trace with hash 865624245, now seen corresponding path program 1 times [2023-11-06 22:03:43,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:43,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840501848] [2023-11-06 22:03:43,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:43,793 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:43,793 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:43,830 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:43,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-06 22:03:44,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:44,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:03:44,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:44,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:44,308 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:44,309 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:44,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840501848] [2023-11-06 22:03:44,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840501848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:44,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:44,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:44,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631050270] [2023-11-06 22:03:44,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:44,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:44,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:44,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:44,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:44,313 INFO L87 Difference]: Start difference. First operand 431 states and 588 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:44,442 INFO L93 Difference]: Finished difference Result 860 states and 1174 transitions. [2023-11-06 22:03:44,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:44,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-06 22:03:44,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:44,448 INFO L225 Difference]: With dead ends: 860 [2023-11-06 22:03:44,448 INFO L226 Difference]: Without dead ends: 434 [2023-11-06 22:03:44,450 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 [2023-11-06 22:03:44,452 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 0 mSDsluCounter, 581 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:44,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1166 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:44,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-06 22:03:44,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2023-11-06 22:03:44,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 362 states have (on average 1.419889502762431) internal successors, (514), 383 states have internal predecessors, (514), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:44,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 591 transitions. [2023-11-06 22:03:44,482 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 591 transitions. Word has length 5 [2023-11-06 22:03:44,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:44,482 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 591 transitions. [2023-11-06 22:03:44,483 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:44,483 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 591 transitions. [2023-11-06 22:03:44,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 22:03:44,484 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:44,484 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-06 22:03:44,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:44,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:44,697 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:44,697 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:44,697 INFO L85 PathProgramCache]: Analyzing trace with hash 829148290, now seen corresponding path program 1 times [2023-11-06 22:03:44,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:44,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2034124180] [2023-11-06 22:03:44,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:44,700 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:44,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:44,701 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:44,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-06 22:03:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:45,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:45,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:45,255 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:45,364 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:45,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:45,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2034124180] [2023-11-06 22:03:45,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2034124180] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:45,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:03:45,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:03:45,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999408749] [2023-11-06 22:03:45,366 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:45,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:45,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:45,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:45,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:45,367 INFO L87 Difference]: Start difference. First operand 434 states and 591 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:45,688 INFO L93 Difference]: Finished difference Result 864 states and 1180 transitions. [2023-11-06 22:03:45,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:45,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 22:03:45,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:45,701 INFO L225 Difference]: With dead ends: 864 [2023-11-06 22:03:45,702 INFO L226 Difference]: Without dead ends: 438 [2023-11-06 22:03:45,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:45,705 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 3 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:45,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2326 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:03:45,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 438 states. [2023-11-06 22:03:45,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 438 to 434. [2023-11-06 22:03:45,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 434 states, 363 states have (on average 1.415977961432507) internal successors, (514), 383 states have internal predecessors, (514), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:45,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 591 transitions. [2023-11-06 22:03:45,728 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 591 transitions. Word has length 8 [2023-11-06 22:03:45,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:45,729 INFO L495 AbstractCegarLoop]: Abstraction has 434 states and 591 transitions. [2023-11-06 22:03:45,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 22:03:45,729 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 591 transitions. [2023-11-06 22:03:45,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-06 22:03:45,730 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:45,730 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:45,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:45,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:45,945 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:45,945 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:45,945 INFO L85 PathProgramCache]: Analyzing trace with hash -21582299, now seen corresponding path program 1 times [2023-11-06 22:03:45,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:45,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [947940454] [2023-11-06 22:03:45,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:45,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:45,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:45,948 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:45,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-06 22:03:46,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:46,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:03:46,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:46,512 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:46,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:46,669 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:46,669 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:46,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [947940454] [2023-11-06 22:03:46,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [947940454] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:46,670 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:03:46,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:03:46,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168536801] [2023-11-06 22:03:46,670 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:46,671 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:03:46,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:46,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:03:46,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:46,676 INFO L87 Difference]: Start difference. First operand 434 states and 591 transitions. Second operand has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2023-11-06 22:03:47,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:47,076 INFO L93 Difference]: Finished difference Result 871 states and 1188 transitions. [2023-11-06 22:03:47,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:03:47,080 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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 17 [2023-11-06 22:03:47,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:47,084 INFO L225 Difference]: With dead ends: 871 [2023-11-06 22:03:47,085 INFO L226 Difference]: Without dead ends: 446 [2023-11-06 22:03:47,087 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:03:47,088 INFO L413 NwaCegarLoop]: 584 mSDtfsCounter, 10 mSDsluCounter, 1743 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 2327 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:47,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 2327 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:03:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2023-11-06 22:03:47,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2023-11-06 22:03:47,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 375 states have (on average 1.4026666666666667) internal successors, (526), 395 states have internal predecessors, (526), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:47,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 603 transitions. [2023-11-06 22:03:47,112 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 603 transitions. Word has length 17 [2023-11-06 22:03:47,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:47,113 INFO L495 AbstractCegarLoop]: Abstraction has 446 states and 603 transitions. [2023-11-06 22:03:47,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.25) internal successors, (26), 8 states have internal predecessors, (26), 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) [2023-11-06 22:03:47,113 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 603 transitions. [2023-11-06 22:03:47,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-06 22:03:47,114 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:47,115 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:47,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:47,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:47,333 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:47,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:47,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1065912293, now seen corresponding path program 2 times [2023-11-06 22:03:47,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:47,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955148280] [2023-11-06 22:03:47,335 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:03:47,335 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:47,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:47,337 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:47,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-06 22:03:47,728 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:03:47,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:03:47,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:03:47,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-11-06 22:03:47,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:47,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:47,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955148280] [2023-11-06 22:03:47,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955148280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:47,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:47,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:03:47,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227547444] [2023-11-06 22:03:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:47,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:03:47,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:47,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:03:47,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:47,858 INFO L87 Difference]: Start difference. First operand 446 states and 603 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) [2023-11-06 22:03:48,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:48,329 INFO L93 Difference]: Finished difference Result 446 states and 603 transitions. [2023-11-06 22:03:48,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:03:48,334 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 29 [2023-11-06 22:03:48,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:48,338 INFO L225 Difference]: With dead ends: 446 [2023-11-06 22:03:48,339 INFO L226 Difference]: Without dead ends: 444 [2023-11-06 22:03:48,340 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:48,341 INFO L413 NwaCegarLoop]: 572 mSDtfsCounter, 149 mSDsluCounter, 1552 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:48,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 2124 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:03:48,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2023-11-06 22:03:48,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 444. [2023-11-06 22:03:48,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 375 states have (on average 1.3973333333333333) internal successors, (524), 393 states have internal predecessors, (524), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:48,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 601 transitions. [2023-11-06 22:03:48,365 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 601 transitions. Word has length 29 [2023-11-06 22:03:48,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:48,367 INFO L495 AbstractCegarLoop]: Abstraction has 444 states and 601 transitions. [2023-11-06 22:03:48,367 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) [2023-11-06 22:03:48,367 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 601 transitions. [2023-11-06 22:03:48,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-06 22:03:48,369 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:48,369 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:03:48,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:48,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:48,585 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:48,585 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:48,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1576620303, now seen corresponding path program 1 times [2023-11-06 22:03:48,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:48,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739446563] [2023-11-06 22:03:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:48,586 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:48,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:48,588 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:48,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-06 22:03:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:49,136 INFO L262 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:03:49,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:49,477 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:49,477 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:50,043 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 22:03:50,043 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:50,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [739446563] [2023-11-06 22:03:50,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [739446563] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:50,043 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:03:50,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-06 22:03:50,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057593463] [2023-11-06 22:03:50,044 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:50,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:03:50,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:50,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:03:50,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:03:50,046 INFO L87 Difference]: Start difference. First operand 444 states and 601 transitions. Second operand has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 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) [2023-11-06 22:03:51,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:51,037 INFO L93 Difference]: Finished difference Result 879 states and 1196 transitions. [2023-11-06 22:03:51,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:03:51,040 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 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 35 [2023-11-06 22:03:51,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:51,044 INFO L225 Difference]: With dead ends: 879 [2023-11-06 22:03:51,044 INFO L226 Difference]: Without dead ends: 456 [2023-11-06 22:03:51,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:03:51,047 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 10 mSDsluCounter, 4632 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5214 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:51,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5214 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-06 22:03:51,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2023-11-06 22:03:51,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 456. [2023-11-06 22:03:51,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 387 states have (on average 1.3850129198966408) internal successors, (536), 405 states have internal predecessors, (536), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:51,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 613 transitions. [2023-11-06 22:03:51,072 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 613 transitions. Word has length 35 [2023-11-06 22:03:51,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:51,072 INFO L495 AbstractCegarLoop]: Abstraction has 456 states and 613 transitions. [2023-11-06 22:03:51,072 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.5) internal successors, (56), 16 states have internal predecessors, (56), 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) [2023-11-06 22:03:51,073 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 613 transitions. [2023-11-06 22:03:51,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-11-06 22:03:51,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:51,075 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] [2023-11-06 22:03:51,101 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:51,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:51,296 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:51,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:51,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1564317873, now seen corresponding path program 2 times [2023-11-06 22:03:51,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:51,297 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177309776] [2023-11-06 22:03:51,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:03:51,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:51,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:51,303 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:51,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-06 22:03:51,801 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:03:51,801 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:03:51,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:03:51,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:51,851 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:51,852 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:51,852 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:51,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [177309776] [2023-11-06 22:03:51,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [177309776] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:51,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:51,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:51,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672699308] [2023-11-06 22:03:51,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:51,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:51,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:51,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:51,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:51,855 INFO L87 Difference]: Start difference. First operand 456 states and 613 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:51,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:51,953 INFO L93 Difference]: Finished difference Result 876 states and 1190 transitions. [2023-11-06 22:03:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 47 [2023-11-06 22:03:51,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:51,959 INFO L225 Difference]: With dead ends: 876 [2023-11-06 22:03:51,959 INFO L226 Difference]: Without dead ends: 459 [2023-11-06 22:03:51,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:51,962 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 0 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:51,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1159 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:51,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2023-11-06 22:03:51,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 459. [2023-11-06 22:03:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 390 states have (on average 1.382051282051282) internal successors, (539), 408 states have internal predecessors, (539), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:51,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 616 transitions. [2023-11-06 22:03:51,987 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 616 transitions. Word has length 47 [2023-11-06 22:03:51,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:51,987 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 616 transitions. [2023-11-06 22:03:51,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:51,988 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 616 transitions. [2023-11-06 22:03:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 22:03:51,989 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:51,989 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] [2023-11-06 22:03:52,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:52,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:52,209 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:52,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:52,209 INFO L85 PathProgramCache]: Analyzing trace with hash -2095429912, now seen corresponding path program 1 times [2023-11-06 22:03:52,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:52,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244007915] [2023-11-06 22:03:52,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:52,210 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:52,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:52,211 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:52,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-06 22:03:52,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:52,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:52,707 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:52,768 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:52,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:52,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:52,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244007915] [2023-11-06 22:03:52,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244007915] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:52,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:03:52,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:03:52,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678057717] [2023-11-06 22:03:52,875 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:52,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:52,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:52,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:52,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:52,877 INFO L87 Difference]: Start difference. First operand 459 states and 616 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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) [2023-11-06 22:03:53,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:53,139 INFO L93 Difference]: Finished difference Result 883 states and 1199 transitions. [2023-11-06 22:03:53,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:53,141 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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 [2023-11-06 22:03:53,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:53,146 INFO L225 Difference]: With dead ends: 883 [2023-11-06 22:03:53,146 INFO L226 Difference]: Without dead ends: 463 [2023-11-06 22:03:53,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:53,149 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 3 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1734 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:53,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1734 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:03:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-11-06 22:03:53,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 459. [2023-11-06 22:03:53,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 391 states have (on average 1.3785166240409208) internal successors, (539), 408 states have internal predecessors, (539), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:53,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 616 transitions. [2023-11-06 22:03:53,174 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 616 transitions. Word has length 50 [2023-11-06 22:03:53,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:53,175 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 616 transitions. [2023-11-06 22:03:53,175 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 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) [2023-11-06 22:03:53,175 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 616 transitions. [2023-11-06 22:03:53,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 22:03:53,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:53,177 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] [2023-11-06 22:03:53,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:53,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:53,392 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:53,393 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:53,393 INFO L85 PathProgramCache]: Analyzing trace with hash -22739238, now seen corresponding path program 1 times [2023-11-06 22:03:53,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:53,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1684457977] [2023-11-06 22:03:53,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:53,396 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:53,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:53,397 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:53,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-06 22:03:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:53,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:03:53,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:53,987 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:53,988 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:53,988 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:53,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1684457977] [2023-11-06 22:03:53,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1684457977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:53,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:53,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:03:53,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769271953] [2023-11-06 22:03:53,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:53,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:03:53,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:53,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:03:53,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:03:53,991 INFO L87 Difference]: Start difference. First operand 459 states and 616 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-06 22:03:54,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:54,139 INFO L93 Difference]: Finished difference Result 566 states and 771 transitions. [2023-11-06 22:03:54,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:03:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-06 22:03:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:54,146 INFO L225 Difference]: With dead ends: 566 [2023-11-06 22:03:54,146 INFO L226 Difference]: Without dead ends: 561 [2023-11-06 22:03:54,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:03:54,148 INFO L413 NwaCegarLoop]: 582 mSDtfsCounter, 250 mSDsluCounter, 1159 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:54,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1741 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:54,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2023-11-06 22:03:54,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 461. [2023-11-06 22:03:54,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 393 states have (on average 1.376590330788804) internal successors, (541), 410 states have internal predecessors, (541), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:54,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 618 transitions. [2023-11-06 22:03:54,177 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 618 transitions. Word has length 52 [2023-11-06 22:03:54,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:54,178 INFO L495 AbstractCegarLoop]: Abstraction has 461 states and 618 transitions. [2023-11-06 22:03:54,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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) [2023-11-06 22:03:54,178 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 618 transitions. [2023-11-06 22:03:54,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-06 22:03:54,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:54,180 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] [2023-11-06 22:03:54,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:54,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:54,392 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:54,392 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:54,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1326089013, now seen corresponding path program 1 times [2023-11-06 22:03:54,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:54,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1487456176] [2023-11-06 22:03:54,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:54,394 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:54,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:54,395 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:54,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-06 22:03:54,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:55,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:03:55,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:55,093 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:55,219 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:55,219 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:55,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1487456176] [2023-11-06 22:03:55,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1487456176] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:55,220 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:03:55,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-06 22:03:55,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133125843] [2023-11-06 22:03:55,220 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:55,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-06 22:03:55,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:55,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-06 22:03:55,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:55,222 INFO L87 Difference]: Start difference. First operand 461 states and 618 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2023-11-06 22:03:55,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:55,782 INFO L93 Difference]: Finished difference Result 895 states and 1211 transitions. [2023-11-06 22:03:55,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-06 22:03:55,782 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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 54 [2023-11-06 22:03:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:55,789 INFO L225 Difference]: With dead ends: 895 [2023-11-06 22:03:55,790 INFO L226 Difference]: Without dead ends: 473 [2023-11-06 22:03:55,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-06 22:03:55,797 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 8 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2312 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:55,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2312 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 22:03:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2023-11-06 22:03:55,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2023-11-06 22:03:55,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 405 states have (on average 1.365432098765432) internal successors, (553), 422 states have internal predecessors, (553), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:55,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 630 transitions. [2023-11-06 22:03:55,881 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 630 transitions. Word has length 54 [2023-11-06 22:03:55,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:55,882 INFO L495 AbstractCegarLoop]: Abstraction has 473 states and 630 transitions. [2023-11-06 22:03:55,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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) [2023-11-06 22:03:55,883 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 630 transitions. [2023-11-06 22:03:55,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-06 22:03:55,885 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:55,885 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] [2023-11-06 22:03:55,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:56,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:56,108 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:56,109 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:56,109 INFO L85 PathProgramCache]: Analyzing trace with hash -56105979, now seen corresponding path program 1 times [2023-11-06 22:03:56,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:56,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481158469] [2023-11-06 22:03:56,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:56,110 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:56,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:56,112 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:56,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-06 22:03:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:56,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:03:56,609 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:56,641 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:56,642 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:56,642 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:56,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481158469] [2023-11-06 22:03:56,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481158469] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:56,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:56,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:03:56,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196568761] [2023-11-06 22:03:56,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:56,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:03:56,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:56,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:03:56,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:56,645 INFO L87 Difference]: Start difference. First operand 473 states and 630 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-06 22:03:56,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:56,711 INFO L93 Difference]: Finished difference Result 477 states and 634 transitions. [2023-11-06 22:03:56,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:03:56,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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 56 [2023-11-06 22:03:56,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:56,716 INFO L225 Difference]: With dead ends: 477 [2023-11-06 22:03:56,716 INFO L226 Difference]: Without dead ends: 476 [2023-11-06 22:03:56,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:03:56,718 INFO L413 NwaCegarLoop]: 581 mSDtfsCounter, 0 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:56,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1159 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:03:56,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2023-11-06 22:03:56,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 476. [2023-11-06 22:03:56,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 408 states have (on average 1.3627450980392157) internal successors, (556), 425 states have internal predecessors, (556), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-06 22:03:56,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 633 transitions. [2023-11-06 22:03:56,747 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 633 transitions. Word has length 56 [2023-11-06 22:03:56,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:56,748 INFO L495 AbstractCegarLoop]: Abstraction has 476 states and 633 transitions. [2023-11-06 22:03:56,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 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) [2023-11-06 22:03:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 633 transitions. [2023-11-06 22:03:56,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-06 22:03:56,750 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:56,750 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, 1, 1] [2023-11-06 22:03:56,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:56,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:56,964 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:56,965 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:56,965 INFO L85 PathProgramCache]: Analyzing trace with hash -709594646, now seen corresponding path program 1 times [2023-11-06 22:03:56,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:56,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1285672811] [2023-11-06 22:03:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:56,966 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:56,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:56,967 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:56,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-06 22:03:57,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:57,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:03:57,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:57,609 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:57,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:03:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:57,707 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:57,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1285672811] [2023-11-06 22:03:57,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1285672811] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:03:57,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:03:57,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:03:57,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329926917] [2023-11-06 22:03:57,708 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:03:57,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:57,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:57,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:57,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:57,710 INFO L87 Difference]: Start difference. First operand 476 states and 633 transitions. Second operand has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 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) [2023-11-06 22:03:57,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:57,888 INFO L93 Difference]: Finished difference Result 483 states and 642 transitions. [2023-11-06 22:03:57,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:57,890 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 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 59 [2023-11-06 22:03:57,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:57,893 INFO L225 Difference]: With dead ends: 483 [2023-11-06 22:03:57,893 INFO L226 Difference]: Without dead ends: 464 [2023-11-06 22:03:57,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:03:57,895 INFO L413 NwaCegarLoop]: 580 mSDtfsCounter, 0 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2314 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:57,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2314 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:03:57,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2023-11-06 22:03:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2023-11-06 22:03:57,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 395 states have (on average 1.3620253164556961) internal successors, (538), 412 states have internal predecessors, (538), 39 states have call successors, (39), 13 states have call predecessors, (39), 13 states have return successors, (37), 37 states have call predecessors, (37), 37 states have call successors, (37) [2023-11-06 22:03:57,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 614 transitions. [2023-11-06 22:03:57,921 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 614 transitions. Word has length 59 [2023-11-06 22:03:57,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:57,922 INFO L495 AbstractCegarLoop]: Abstraction has 462 states and 614 transitions. [2023-11-06 22:03:57,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.4) internal successors, (37), 6 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) [2023-11-06 22:03:57,922 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 614 transitions. [2023-11-06 22:03:57,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:03:57,924 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:57,924 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] [2023-11-06 22:03:57,945 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:58,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:58,145 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:58,145 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:58,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1997509906, now seen corresponding path program 1 times [2023-11-06 22:03:58,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:58,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1233451190] [2023-11-06 22:03:58,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:58,147 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:58,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:58,149 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:58,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-06 22:03:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:03:58,815 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:03:58,819 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:03:58,926 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:03:58,926 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:03:58,926 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:03:58,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1233451190] [2023-11-06 22:03:58,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1233451190] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:03:58,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:03:58,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-06 22:03:58,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279955156] [2023-11-06 22:03:58,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:03:58,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:03:58,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:03:58,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:03:58,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:03:58,928 INFO L87 Difference]: Start difference. First operand 462 states and 614 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:59,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:03:59,169 INFO L93 Difference]: Finished difference Result 644 states and 841 transitions. [2023-11-06 22:03:59,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:03:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-06 22:03:59,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:03:59,175 INFO L225 Difference]: With dead ends: 644 [2023-11-06 22:03:59,175 INFO L226 Difference]: Without dead ends: 540 [2023-11-06 22:03:59,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-06 22:03:59,177 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 197 mSDsluCounter, 2258 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 2824 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:03:59,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 2824 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:03:59,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-06 22:03:59,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 526. [2023-11-06 22:03:59,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 453 states have (on average 1.3730684326710816) internal successors, (622), 469 states have internal predecessors, (622), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:03:59,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 709 transitions. [2023-11-06 22:03:59,207 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 709 transitions. Word has length 64 [2023-11-06 22:03:59,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:03:59,207 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 709 transitions. [2023-11-06 22:03:59,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:03:59,208 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 709 transitions. [2023-11-06 22:03:59,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 22:03:59,209 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:03:59,209 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] [2023-11-06 22:03:59,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2023-11-06 22:03:59,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:59,424 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:03:59,425 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:03:59,425 INFO L85 PathProgramCache]: Analyzing trace with hash -522450028, now seen corresponding path program 1 times [2023-11-06 22:03:59,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:03:59,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [402234391] [2023-11-06 22:03:59,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:03:59,426 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:03:59,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:03:59,428 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:03:59,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-06 22:04:00,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:00,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:04:00,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:00,109 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:04:00,109 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:00,110 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:00,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [402234391] [2023-11-06 22:04:00,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [402234391] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:00,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:00,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:04:00,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754312167] [2023-11-06 22:04:00,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:00,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:04:00,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:00,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:04:00,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:04:00,112 INFO L87 Difference]: Start difference. First operand 526 states and 709 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:00,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:00,209 INFO L93 Difference]: Finished difference Result 541 states and 731 transitions. [2023-11-06 22:04:00,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:04:00,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 64 [2023-11-06 22:04:00,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:00,213 INFO L225 Difference]: With dead ends: 541 [2023-11-06 22:04:00,213 INFO L226 Difference]: Without dead ends: 540 [2023-11-06 22:04:00,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:04:00,215 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 3 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:00,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1127 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:04:00,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2023-11-06 22:04:00,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 534. [2023-11-06 22:04:00,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 461 states have (on average 1.3752711496746204) internal successors, (634), 477 states have internal predecessors, (634), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:00,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 721 transitions. [2023-11-06 22:04:00,241 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 721 transitions. Word has length 64 [2023-11-06 22:04:00,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:00,241 INFO L495 AbstractCegarLoop]: Abstraction has 534 states and 721 transitions. [2023-11-06 22:04:00,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:00,242 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 721 transitions. [2023-11-06 22:04:00,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 22:04:00,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:00,243 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] [2023-11-06 22:04:00,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:00,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:00,456 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:00,457 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:00,457 INFO L85 PathProgramCache]: Analyzing trace with hash 941899905, now seen corresponding path program 1 times [2023-11-06 22:04:00,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:00,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1097193094] [2023-11-06 22:04:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:00,458 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:00,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:00,459 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:00,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-06 22:04:01,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:01,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:04:01,096 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:01,134 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:04:01,134 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:01,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:01,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1097193094] [2023-11-06 22:04:01,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1097193094] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:01,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:01,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:01,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414736629] [2023-11-06 22:04:01,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:01,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:04:01,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:01,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:04:01,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:04:01,137 INFO L87 Difference]: Start difference. First operand 534 states and 721 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:01,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:01,362 INFO L93 Difference]: Finished difference Result 978 states and 1346 transitions. [2023-11-06 22:04:01,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:04:01,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 65 [2023-11-06 22:04:01,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:01,368 INFO L225 Difference]: With dead ends: 978 [2023-11-06 22:04:01,368 INFO L226 Difference]: Without dead ends: 538 [2023-11-06 22:04:01,370 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:01,371 INFO L413 NwaCegarLoop]: 570 mSDtfsCounter, 5 mSDsluCounter, 1108 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:01,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1678 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:04:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2023-11-06 22:04:01,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 536. [2023-11-06 22:04:01,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 463 states have (on average 1.3714902807775378) internal successors, (635), 479 states have internal predecessors, (635), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:01,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 722 transitions. [2023-11-06 22:04:01,399 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 722 transitions. Word has length 65 [2023-11-06 22:04:01,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:01,399 INFO L495 AbstractCegarLoop]: Abstraction has 536 states and 722 transitions. [2023-11-06 22:04:01,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:01,400 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 722 transitions. [2023-11-06 22:04:01,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-06 22:04:01,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:01,401 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:01,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:01,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:01,616 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:01,617 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:01,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1516236299, now seen corresponding path program 2 times [2023-11-06 22:04:01,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:01,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269526459] [2023-11-06 22:04:01,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 22:04:01,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:01,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:01,620 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:01,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-06 22:04:02,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 22:04:02,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 22:04:02,189 INFO L262 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 22:04:02,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2023-11-06 22:04:02,335 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:02,335 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:02,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269526459] [2023-11-06 22:04:02,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269526459] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:02,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:02,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:04:02,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810006934] [2023-11-06 22:04:02,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:02,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:04:02,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:02,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:04:02,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:04:02,338 INFO L87 Difference]: Start difference. First operand 536 states and 722 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:03,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:03,077 INFO L93 Difference]: Finished difference Result 561 states and 749 transitions. [2023-11-06 22:04:03,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:04:03,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 66 [2023-11-06 22:04:03,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:03,082 INFO L225 Difference]: With dead ends: 561 [2023-11-06 22:04:03,082 INFO L226 Difference]: Without dead ends: 560 [2023-11-06 22:04:03,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:04:03,084 INFO L413 NwaCegarLoop]: 565 mSDtfsCounter, 1 mSDsluCounter, 561 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:03,084 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1126 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-06 22:04:03,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2023-11-06 22:04:03,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 559. [2023-11-06 22:04:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 486 states have (on average 1.3580246913580247) internal successors, (660), 502 states have internal predecessors, (660), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:03,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 747 transitions. [2023-11-06 22:04:03,116 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 747 transitions. Word has length 66 [2023-11-06 22:04:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:03,117 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 747 transitions. [2023-11-06 22:04:03,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:03,118 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 747 transitions. [2023-11-06 22:04:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:04:03,119 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:03,119 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:03,145 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-06 22:04:03,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:03,339 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:03,340 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:03,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1218858245, now seen corresponding path program 1 times [2023-11-06 22:04:03,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:03,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1386934526] [2023-11-06 22:04:03,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:03,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:03,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:03,343 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:03,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-06 22:04:04,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:04,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:04:04,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:04,191 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:04:04,191 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:04:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 22:04:04,286 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:04,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1386934526] [2023-11-06 22:04:04,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1386934526] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:04:04,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:04:04,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-11-06 22:04:04,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306959941] [2023-11-06 22:04:04,287 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:04:04,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:04,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:04,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:04,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:04,289 INFO L87 Difference]: Start difference. First operand 559 states and 747 transitions. Second operand has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:04,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:04,566 INFO L93 Difference]: Finished difference Result 601 states and 811 transitions. [2023-11-06 22:04:04,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:04,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2023-11-06 22:04:04,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:04,571 INFO L225 Difference]: With dead ends: 601 [2023-11-06 22:04:04,572 INFO L226 Difference]: Without dead ends: 600 [2023-11-06 22:04:04,572 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:04:04,573 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 20 mSDsluCounter, 1125 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 1699 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:04,574 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 1699 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 22:04:04,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2023-11-06 22:04:04,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 550. [2023-11-06 22:04:04,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 478 states have (on average 1.3514644351464435) internal successors, (646), 493 states have internal predecessors, (646), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:04,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 733 transitions. [2023-11-06 22:04:04,604 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 733 transitions. Word has length 68 [2023-11-06 22:04:04,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:04,604 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 733 transitions. [2023-11-06 22:04:04,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.2) internal successors, (46), 6 states have internal predecessors, (46), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 22:04:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 733 transitions. [2023-11-06 22:04:04,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-06 22:04:04,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:04,606 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:04,632 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:04,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:04,821 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:04,821 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:04,821 INFO L85 PathProgramCache]: Analyzing trace with hash 401288891, now seen corresponding path program 1 times [2023-11-06 22:04:04,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:04,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558240317] [2023-11-06 22:04:04,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:04,823 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:04,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:04,825 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:04,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-06 22:04:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:05,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:04:05,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 22:04:05,616 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:05,616 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:05,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1558240317] [2023-11-06 22:04:05,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1558240317] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:05,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:05,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 22:04:05,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195980181] [2023-11-06 22:04:05,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:05,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:04:05,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:05,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:04:05,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:05,619 INFO L87 Difference]: Start difference. First operand 550 states and 733 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:05,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:05,794 INFO L93 Difference]: Finished difference Result 990 states and 1353 transitions. [2023-11-06 22:04:05,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 22:04:05,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 72 [2023-11-06 22:04:05,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:05,800 INFO L225 Difference]: With dead ends: 990 [2023-11-06 22:04:05,800 INFO L226 Difference]: Without dead ends: 550 [2023-11-06 22:04:05,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:04:05,804 INFO L413 NwaCegarLoop]: 564 mSDtfsCounter, 2 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2235 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:05,804 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2235 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:04:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2023-11-06 22:04:05,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2023-11-06 22:04:05,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 478 states have (on average 1.3472803347280335) internal successors, (644), 493 states have internal predecessors, (644), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:05,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 731 transitions. [2023-11-06 22:04:05,843 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 731 transitions. Word has length 72 [2023-11-06 22:04:05,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:05,843 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 731 transitions. [2023-11-06 22:04:05,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:05,844 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 731 transitions. [2023-11-06 22:04:05,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:04:05,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:05,845 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:05,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:06,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:06,067 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:06,067 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:06,067 INFO L85 PathProgramCache]: Analyzing trace with hash 370314547, now seen corresponding path program 1 times [2023-11-06 22:04:06,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:06,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2055151510] [2023-11-06 22:04:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:06,069 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:06,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:06,070 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:06,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-06 22:04:06,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:06,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:04:06,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:07,000 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:04:07,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:07,000 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:07,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2055151510] [2023-11-06 22:04:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2055151510] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:07,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:07,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:07,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032874132] [2023-11-06 22:04:07,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:07,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:04:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:07,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:04:07,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:04:07,003 INFO L87 Difference]: Start difference. First operand 550 states and 731 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:07,189 INFO L93 Difference]: Finished difference Result 966 states and 1317 transitions. [2023-11-06 22:04:07,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:04:07,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-06 22:04:07,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:07,195 INFO L225 Difference]: With dead ends: 966 [2023-11-06 22:04:07,195 INFO L226 Difference]: Without dead ends: 532 [2023-11-06 22:04:07,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:07,199 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 158 mSDsluCounter, 928 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:07,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 1478 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 22:04:07,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-11-06 22:04:07,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 532. [2023-11-06 22:04:07,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 532 states, 464 states have (on average 1.3362068965517242) internal successors, (620), 477 states have internal predecessors, (620), 43 states have call successors, (43), 15 states have call predecessors, (43), 13 states have return successors, (40), 40 states have call predecessors, (40), 40 states have call successors, (40) [2023-11-06 22:04:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 703 transitions. [2023-11-06 22:04:07,237 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 703 transitions. Word has length 73 [2023-11-06 22:04:07,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:07,238 INFO L495 AbstractCegarLoop]: Abstraction has 532 states and 703 transitions. [2023-11-06 22:04:07,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:07,238 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 703 transitions. [2023-11-06 22:04:07,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-06 22:04:07,240 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:07,240 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:07,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:07,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:07,464 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:07,465 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:07,465 INFO L85 PathProgramCache]: Analyzing trace with hash 370316469, now seen corresponding path program 1 times [2023-11-06 22:04:07,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:07,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1252754002] [2023-11-06 22:04:07,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:07,466 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:07,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:07,469 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:07,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-11-06 22:04:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:08,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 22:04:08,099 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:08,176 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:04:08,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:08,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:08,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1252754002] [2023-11-06 22:04:08,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1252754002] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:08,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:04:08,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:04:08,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525940020] [2023-11-06 22:04:08,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:08,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 22:04:08,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:08,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 22:04:08,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 22:04:08,179 INFO L87 Difference]: Start difference. First operand 532 states and 703 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:08,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:08,621 INFO L93 Difference]: Finished difference Result 1020 states and 1382 transitions. [2023-11-06 22:04:08,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:08,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 73 [2023-11-06 22:04:08,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:08,628 INFO L225 Difference]: With dead ends: 1020 [2023-11-06 22:04:08,628 INFO L226 Difference]: Without dead ends: 644 [2023-11-06 22:04:08,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 22:04:08,632 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 81 mSDsluCounter, 1713 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2315 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:08,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 2315 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 22:04:08,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2023-11-06 22:04:08,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 572. [2023-11-06 22:04:08,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 502 states have (on average 1.3306772908366533) internal successors, (668), 515 states have internal predecessors, (668), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:08,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 755 transitions. [2023-11-06 22:04:08,709 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 755 transitions. Word has length 73 [2023-11-06 22:04:08,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:08,710 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 755 transitions. [2023-11-06 22:04:08,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:08,710 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 755 transitions. [2023-11-06 22:04:08,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-06 22:04:08,712 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:08,712 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-06 22:04:08,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:08,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:08,934 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:08,934 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1854755118, now seen corresponding path program 1 times [2023-11-06 22:04:08,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:08,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887054506] [2023-11-06 22:04:08,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:08,935 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:08,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:08,936 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:08,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-06 22:04:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:09,609 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:04:09,612 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:09,738 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-06 22:04:09,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:04:10,268 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887054506] [2023-11-06 22:04:10,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887054506] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:04:10,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1809720632] [2023-11-06 22:04:10,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:10,269 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:04:10,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:04:10,270 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:04:10,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-06 22:04:11,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:11,916 INFO L262 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:04:11,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-06 22:04:12,203 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:04:12,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1809720632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:04:12,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:04:12,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 10 [2023-11-06 22:04:12,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197419125] [2023-11-06 22:04:12,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:04:12,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:12,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:12,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:12,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2023-11-06 22:04:12,206 INFO L87 Difference]: Start difference. First operand 572 states and 755 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:13,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:13,283 INFO L93 Difference]: Finished difference Result 1058 states and 1418 transitions. [2023-11-06 22:04:13,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 22:04:13,285 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 77 [2023-11-06 22:04:13,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:13,289 INFO L225 Difference]: With dead ends: 1058 [2023-11-06 22:04:13,289 INFO L226 Difference]: Without dead ends: 572 [2023-11-06 22:04:13,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2023-11-06 22:04:13,292 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 140 mSDsluCounter, 1997 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:13,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 2536 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-06 22:04:13,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2023-11-06 22:04:13,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2023-11-06 22:04:13,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 502 states have (on average 1.3286852589641434) internal successors, (667), 515 states have internal predecessors, (667), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 754 transitions. [2023-11-06 22:04:13,331 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 754 transitions. Word has length 77 [2023-11-06 22:04:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:13,331 INFO L495 AbstractCegarLoop]: Abstraction has 572 states and 754 transitions. [2023-11-06 22:04:13,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 754 transitions. [2023-11-06 22:04:13,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-06 22:04:13,333 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:13,333 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:13,361 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:13,559 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-11-06 22:04:13,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:04:13,752 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:13,752 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:13,752 INFO L85 PathProgramCache]: Analyzing trace with hash 402994503, now seen corresponding path program 1 times [2023-11-06 22:04:13,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:13,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1907912972] [2023-11-06 22:04:13,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:13,753 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:13,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:13,754 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:13,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-06 22:04:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:14,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-06 22:04:14,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:14,819 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 122 proven. 51 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-06 22:04:14,819 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:04:15,261 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 122 proven. 51 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2023-11-06 22:04:15,261 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:15,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1907912972] [2023-11-06 22:04:15,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1907912972] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 22:04:15,262 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:04:15,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2023-11-06 22:04:15,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179574883] [2023-11-06 22:04:15,263 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:04:15,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-11-06 22:04:15,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:15,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-11-06 22:04:15,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-11-06 22:04:15,265 INFO L87 Difference]: Start difference. First operand 572 states and 754 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 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) [2023-11-06 22:04:17,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:17,212 INFO L93 Difference]: Finished difference Result 1109 states and 1478 transitions. [2023-11-06 22:04:17,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 22:04:17,213 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 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 89 [2023-11-06 22:04:17,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:17,218 INFO L225 Difference]: With dead ends: 1109 [2023-11-06 22:04:17,218 INFO L226 Difference]: Without dead ends: 596 [2023-11-06 22:04:17,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=96, Invalid=210, Unknown=0, NotChecked=0, Total=306 [2023-11-06 22:04:17,222 INFO L413 NwaCegarLoop]: 551 mSDtfsCounter, 10 mSDsluCounter, 4923 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5474 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:17,223 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5474 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-06 22:04:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 596 states. [2023-11-06 22:04:17,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 596 to 596. [2023-11-06 22:04:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 596 states, 526 states have (on average 1.3136882129277567) internal successors, (691), 539 states have internal predecessors, (691), 45 states have call successors, (45), 15 states have call predecessors, (45), 13 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2023-11-06 22:04:17,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 596 states and 778 transitions. [2023-11-06 22:04:17,268 INFO L78 Accepts]: Start accepts. Automaton has 596 states and 778 transitions. Word has length 89 [2023-11-06 22:04:17,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:17,269 INFO L495 AbstractCegarLoop]: Abstraction has 596 states and 778 transitions. [2023-11-06 22:04:17,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 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) [2023-11-06 22:04:17,269 INFO L276 IsEmpty]: Start isEmpty. Operand 596 states and 778 transitions. [2023-11-06 22:04:17,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-06 22:04:17,272 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:17,272 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] [2023-11-06 22:04:17,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:17,498 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:17,498 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:17,498 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:17,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1305148068, now seen corresponding path program 1 times [2023-11-06 22:04:17,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:17,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231571580] [2023-11-06 22:04:17,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:17,500 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:17,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:17,501 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:17,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Waiting until timeout for monitored process [2023-11-06 22:04:18,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:18,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:04:18,577 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:18,724 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 22:04:18,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:04:19,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-06 22:04:19,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231571580] [2023-11-06 22:04:19,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231571580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:04:19,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [318476747] [2023-11-06 22:04:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:19,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-06 22:04:19,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 [2023-11-06 22:04:19,161 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-06 22:04:19,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-06 22:04:22,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:04:22,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-06 22:04:22,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:04:22,495 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-06 22:04:22,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 22:04:22,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [318476747] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:04:22,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-06 22:04:22,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-11-06 22:04:22,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870093176] [2023-11-06 22:04:22,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-06 22:04:22,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 22:04:22,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-06 22:04:22,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 22:04:22,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-06 22:04:22,566 INFO L87 Difference]: Start difference. First operand 596 states and 778 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:23,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:04:23,118 INFO L93 Difference]: Finished difference Result 1110 states and 1487 transitions. [2023-11-06 22:04:23,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-06 22:04:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 112 [2023-11-06 22:04:23,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:04:23,126 INFO L225 Difference]: With dead ends: 1110 [2023-11-06 22:04:23,126 INFO L226 Difference]: Without dead ends: 714 [2023-11-06 22:04:23,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 22:04:23,130 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 87 mSDsluCounter, 2261 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 2847 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 22:04:23,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 2847 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 22:04:23,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2023-11-06 22:04:23,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 634. [2023-11-06 22:04:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 562 states have (on average 1.3149466192170818) internal successors, (739), 575 states have internal predecessors, (739), 47 states have call successors, (47), 15 states have call predecessors, (47), 13 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-11-06 22:04:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 830 transitions. [2023-11-06 22:04:23,222 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 830 transitions. Word has length 112 [2023-11-06 22:04:23,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:04:23,223 INFO L495 AbstractCegarLoop]: Abstraction has 634 states and 830 transitions. [2023-11-06 22:04:23,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 22:04:23,223 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 830 transitions. [2023-11-06 22:04:23,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-06 22:04:23,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:04:23,226 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] [2023-11-06 22:04:23,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (25)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:23,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:23,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/cvc4 --incremental --print-success --lang smt [2023-11-06 22:04:23,640 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 41 more)] === [2023-11-06 22:04:23,640 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:04:23,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1804883686, now seen corresponding path program 1 times [2023-11-06 22:04:23,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-06 22:04:23,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1767345937] [2023-11-06 22:04:23,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:04:23,641 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:23,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat [2023-11-06 22:04:23,642 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-06 22:04:23,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Waiting until timeout for monitored process [2023-11-06 22:04:29,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:04:29,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:04:35,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:04:36,091 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-06 22:04:36,091 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-06 22:04:36,092 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location bb_verror_msgErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 44 remaining) [2023-11-06 22:04:36,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 44 remaining) [2023-11-06 22:04:36,094 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 44 remaining) [2023-11-06 22:04:36,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 44 remaining) [2023-11-06 22:04:36,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_ascii_isalnumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 44 remaining) [2023-11-06 22:04:36,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 44 remaining) [2023-11-06 22:04:36,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_process_escape_sequenceErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 44 remaining) [2023-11-06 22:04:36,095 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 44 remaining) [2023-11-06 22:04:36,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 44 remaining) [2023-11-06 22:04:36,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 44 remaining) [2023-11-06 22:04:36,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 44 remaining) [2023-11-06 22:04:36,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 44 remaining) [2023-11-06 22:04:36,096 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 44 remaining) [2023-11-06 22:04:36,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 44 remaining) [2023-11-06 22:04:36,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 44 remaining) [2023-11-06 22:04:36,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 44 remaining) [2023-11-06 22:04:36,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 44 remaining) [2023-11-06 22:04:36,097 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 44 remaining) [2023-11-06 22:04:36,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 44 remaining) [2023-11-06 22:04:36,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 44 remaining) [2023-11-06 22:04:36,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 44 remaining) [2023-11-06 22:04:36,098 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 44 remaining) [2023-11-06 22:04:36,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 44 remaining) [2023-11-06 22:04:36,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 44 remaining) [2023-11-06 22:04:36,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 44 remaining) [2023-11-06 22:04:36,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location bb_verror_msgErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 44 remaining) [2023-11-06 22:04:36,099 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 44 remaining) [2023-11-06 22:04:36,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 44 remaining) [2023-11-06 22:04:36,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 44 remaining) [2023-11-06 22:04:36,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 44 remaining) [2023-11-06 22:04:36,100 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 44 remaining) [2023-11-06 22:04:36,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 44 remaining) [2023-11-06 22:04:36,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 44 remaining) [2023-11-06 22:04:36,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 44 remaining) [2023-11-06 22:04:36,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 44 remaining) [2023-11-06 22:04:36,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 44 remaining) [2023-11-06 22:04:36,101 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 44 remaining) [2023-11-06 22:04:36,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 44 remaining) [2023-11-06 22:04:36,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 44 remaining) [2023-11-06 22:04:36,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 44 remaining) [2023-11-06 22:04:36,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 44 remaining) [2023-11-06 22:04:36,102 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 44 remaining) [2023-11-06 22:04:36,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 44 remaining) [2023-11-06 22:04:36,103 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 44 remaining) [2023-11-06 22:04:36,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (27)] Forceful destruction successful, exit code 0 [2023-11-06 22:04:36,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e8ad16c-3fa1-4e5b-ac66-f5b0b675185c/bin/uautomizer-verify-WvqO1wxjHP/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-06 22:04:36,328 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:04:36,333 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:04:36,444 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:04:36,454 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:04:36,466 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not [2023-11-06 22:04:36,470 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #varArgs [2023-11-06 22:04:36,474 WARN L1553 BoogieBacktranslator]: Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression [2023-11-06 22:04:36,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:04:36 BoogieIcfgContainer [2023-11-06 22:04:36,510 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:04:36,511 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:04:36,511 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:04:36,511 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:04:36,512 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:03:42" (3/4) ... [2023-11-06 22:04:36,514 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-06 22:04:36,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:04:36,520 INFO L158 Benchmark]: Toolchain (without parser) took 66872.72ms. Allocated memory was 104.9MB in the beginning and 209.7MB in the end (delta: 104.9MB). Free memory was 74.6MB in the beginning and 44.3MB in the end (delta: 30.4MB). Peak memory consumption was 135.5MB. Max. memory is 16.1GB. [2023-11-06 22:04:36,524 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:04:36,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 3058.81ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 74.3MB in the beginning and 74.4MB in the end (delta: -49.5kB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. [2023-11-06 22:04:36,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 216.66ms. Allocated memory is still 132.1MB. Free memory was 74.4MB in the beginning and 64.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:04:36,525 INFO L158 Benchmark]: Boogie Preprocessor took 307.01ms. Allocated memory is still 132.1MB. Free memory was 64.0MB in the beginning and 83.8MB in the end (delta: -19.8MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2023-11-06 22:04:36,526 INFO L158 Benchmark]: RCFGBuilder took 9208.18ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 83.8MB in the beginning and 123.7MB in the end (delta: -39.9MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2023-11-06 22:04:36,526 INFO L158 Benchmark]: TraceAbstraction took 54068.39ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 122.7MB in the beginning and 44.3MB in the end (delta: 78.5MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. [2023-11-06 22:04:36,526 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 209.7MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:04:36,528 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 75.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 3058.81ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 74.3MB in the beginning and 74.4MB in the end (delta: -49.5kB). Peak memory consumption was 47.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 216.66ms. Allocated memory is still 132.1MB. Free memory was 74.4MB in the beginning and 64.0MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 307.01ms. Allocated memory is still 132.1MB. Free memory was 64.0MB in the beginning and 83.8MB in the end (delta: -19.8MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. * RCFGBuilder took 9208.18ms. Allocated memory was 132.1MB in the beginning and 174.1MB in the end (delta: 41.9MB). Free memory was 83.8MB in the beginning and 123.7MB in the end (delta: -39.9MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * TraceAbstraction took 54068.39ms. Allocated memory was 174.1MB in the beginning and 209.7MB in the end (delta: 35.7MB). Free memory was 122.7MB in the beginning and 44.3MB in the end (delta: 78.5MB). Peak memory consumption was 114.1MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 209.7MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expected StepInfo for loop construct to contain Condition, but it did not - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable #varArgs - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression #varArgs!base has a CASTFunctionDefinition but is no IdentifierExpression: IdentifierExpression - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 2596]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of strlen at line 2593. Possible FailurePath: [L2370] static const char *applet_name; [L2371] static signed int bb_errno_location; [L2372] static signed int * const bb_errno = &bb_errno_location; [L2373] static const char bb_msg_memory_exhausted[14l] = { (const char)111, (const char)117, (const char)116, (const char)32, (const char)111, (const char)102, (const char)32, (const char)109, (const char)101, (const char)109, (const char)111, (const char)114, (const char)121, (const char)0 }; [L2374] static struct __jmp_buf_tag die_jmp[1l]; [L2375] static signed int die_sleep; [L2376] static char local_buf[(signed long int)(sizeof(signed int) * 3) ]; [L2377] static signed char logmode = (signed char)1; [L2378] static const char *msg_eol = "\n"; [L2379] static unsigned char xfunc_error_retval = (unsigned char)1; [L2445] static const char charmap[20l] = { (const char)97, (const char)98, (const char)101, (const char)102, (const char)110, (const char)114, (const char)116, (const char)118, (const char)92, (const char)0, (const char)7, (const char)8, (const char)27, (const char)12, (const char)10, (const char)13, (const char)9, (const char)11, (const char)92, (const char)92 }; [L3133] static const char format_chars[14l] = { (const char)100, (const char)105, (const char)111, (const char)117, (const char)120, (const char)88, (const char)102, (const char)101, (const char)69, (const char)103, (const char)71, (const char)99, (const char)115, (const char)0 }; [L3336] static struct utmp dummy_utmp; VAL [applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3418] char *a = malloc(11); [L3419] a[10] = 0 [L3420] int i=0; VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=1, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=2, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=3, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=4, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=5, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=6, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=7, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=8, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=9, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND TRUE i<10 [L3421] a[i]=__VERIFIER_nondet_char() [L3420] ++i VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3420] COND FALSE !(i<10) VAL [a={31:0}, applet_name={0:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=10, local_buf={16:0}, logmode=1, msg_eol={3:0}, xfunc_error_retval=1] [L3422] applet_name = a [L3423] bb_errno_location = __VERIFIER_nondet_int() [L3424] optind = 1 [L3425] int argc = __VERIFIER_nondet_int(); [L3426] CALL assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [\old(cond)=1, applet_name={31:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L9] COND FALSE !(!cond) VAL [\old(cond)=1, applet_name={31:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, cond=1, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3426] RET assume_abort_if_not(argc >= 1 && argc <= 10000) VAL [a={31:0}, applet_name={31:0}, argc=1, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, local_buf={16:0}, logmode=1, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3427] EXPR argc+1 [L3427] char **argv=malloc((argc+1)*sizeof(char*)); [L3428] EXPR argc+1 [L3428] char **mem_track=malloc((argc+1)*sizeof(char*)); [L3429] argv[argc]=0 [L3430] int i=0; VAL [a={31:0}, applet_name={31:0}, argc=1, argv={50:0}, bb_errno={13:0}, bb_errno_location={13:0}, bb_msg_memory_exhausted={14:0}, charmap={17:0}, die_jmp={15:0}, die_sleep=0, dummy_utmp={19:0}, format_chars={18:0}, i=0, local_buf={16:0}, logmode=1, mem_track={23:0}, msg_eol={3:0}, optind=1, xfunc_error_retval=1] [L3430] COND TRUE i