./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_08_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/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_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_08_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/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_0a35f1be-5204-4083-b198-27aed0800a7c/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 5b8525e411339426e47b0c6cded986bded6156754572b2487a7c059c496e530e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:43:50,211 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:43:50,328 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 22:43:50,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:43:50,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:43:50,358 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:43:50,359 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:43:50,359 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:43:50,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 22:43:50,361 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 22:43:50,362 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:43:50,363 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:43:50,363 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:43:50,364 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:43:50,365 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 22:43:50,365 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:43:50,366 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:43:50,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 22:43:50,367 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 22:43:50,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 22:43:50,368 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 22:43:50,369 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:43:50,369 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:43:50,370 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:43:50,371 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:43:50,371 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:43:50,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 22:43:50,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:50,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:43:50,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 22:43:50,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 22:43:50,375 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:43:50,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 22:43:50,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 22:43:50,376 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 22:43:50,377 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 22:43:50,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 22:43:50,377 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 22:43:50,378 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_0a35f1be-5204-4083-b198-27aed0800a7c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b8525e411339426e47b0c6cded986bded6156754572b2487a7c059c496e530e [2023-11-06 22:43:50,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:43:50,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:43:50,762 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:43:50,763 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:43:50,764 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:43:50,765 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_08_good.i [2023-11-06 22:43:53,846 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:43:54,396 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:43:54,396 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_postinc_08_good.i [2023-11-06 22:43:54,428 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/data/2bc113507/86324f998b2e4a68b3e332d4696e77ef/FLAGf31028663 [2023-11-06 22:43:54,443 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/data/2bc113507/86324f998b2e4a68b3e332d4696e77ef [2023-11-06 22:43:54,448 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:43:54,450 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:43:54,457 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:54,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:43:54,464 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:43:54,465 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:54" (1/1) ... [2023-11-06 22:43:54,466 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@656e4fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:54, skipping insertion in model container [2023-11-06 22:43:54,466 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:43:54" (1/1) ... [2023-11-06 22:43:54,540 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:43:54,907 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:43:55,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:55,510 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:43:55,539 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-06 22:43:55,602 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:43:55,772 WARN L672 CHandler]: The function puts is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:43:55,773 WARN L672 CHandler]: The function __ctype_b_loc is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:43:55,773 WARN L672 CHandler]: The function iswxdigit is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:43:55,773 WARN L672 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:43:55,773 WARN L672 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:43:55,774 WARN L672 CHandler]: The function fgets is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 22:43:55,782 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:43:55,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55 WrapperNode [2023-11-06 22:43:55,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:43:55,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:55,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:43:55,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:43:55,793 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,886 INFO L138 Inliner]: procedures = 506, calls = 95, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 156 [2023-11-06 22:43:55,887 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:43:55,888 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:43:55,888 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:43:55,888 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:43:55,897 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,902 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,902 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,941 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,947 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,951 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:43:55,952 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:43:55,952 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:43:55,953 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:43:55,954 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (1/1) ... [2023-11-06 22:43:55,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 22:43:55,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:56,004 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 22:43:56,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 22:43:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2023-11-06 22:43:56,069 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2023-11-06 22:43:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2023-11-06 22:43:56,069 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2023-11-06 22:43:56,070 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2023-11-06 22:43:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 22:43:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 22:43:56,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:43:56,072 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:43:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:43:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2023-11-06 22:43:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2023-11-06 22:43:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 22:43:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2023-11-06 22:43:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2023-11-06 22:43:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-11-06 22:43:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:43:56,281 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:43:56,285 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:43:56,563 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:43:56,575 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:43:56,576 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-06 22:43:56,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:56 BoogieIcfgContainer [2023-11-06 22:43:56,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:43:56,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 22:43:56,587 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 22:43:56,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 22:43:56,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:43:54" (1/3) ... [2023-11-06 22:43:56,594 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dce9ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:56, skipping insertion in model container [2023-11-06 22:43:56,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:43:55" (2/3) ... [2023-11-06 22:43:56,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@dce9ec8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:43:56, skipping insertion in model container [2023-11-06 22:43:56,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:56" (3/3) ... [2023-11-06 22:43:56,599 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_postinc_08_good.i [2023-11-06 22:43:56,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 22:43:56,621 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-11-06 22:43:56,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 22:43:56,719 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;@276eeaca, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 22:43:56,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-11-06 22:43:56,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 68 states have internal predecessors, (75), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-11-06 22:43:56,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-06 22:43:56,736 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:56,737 INFO L195 NwaCegarLoop]: trace histogram [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 22:43:56,737 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:56,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:56,747 INFO L85 PathProgramCache]: Analyzing trace with hash 890812736, now seen corresponding path program 1 times [2023-11-06 22:43:56,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:56,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757511061] [2023-11-06 22:43:56,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:56,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:56,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:57,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:57,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-11-06 22:43:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,338 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 22:43:57,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:57,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757511061] [2023-11-06 22:43:57,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757511061] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:57,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:57,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:43:57,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735329793] [2023-11-06 22:43:57,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:57,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:43:57,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:43:57,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:43:57,379 INFO L87 Difference]: Start difference. First operand has 87 states, 54 states have (on average 1.3888888888888888) internal successors, (75), 68 states have internal predecessors, (75), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:43:57,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:57,438 INFO L93 Difference]: Finished difference Result 164 states and 215 transitions. [2023-11-06 22:43:57,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:57,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2023-11-06 22:43:57,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:57,451 INFO L225 Difference]: With dead ends: 164 [2023-11-06 22:43:57,451 INFO L226 Difference]: Without dead ends: 78 [2023-11-06 22:43:57,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:43:57,459 INFO L413 NwaCegarLoop]: 112 mSDtfsCounter, 0 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:57,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 331 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:57,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-11-06 22:43:57,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-11-06 22:43:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 48 states have (on average 1.375) internal successors, (66), 61 states have internal predecessors, (66), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:43:57,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 102 transitions. [2023-11-06 22:43:57,524 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 102 transitions. Word has length 22 [2023-11-06 22:43:57,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:57,526 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 102 transitions. [2023-11-06 22:43:57,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:43:57,526 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 102 transitions. [2023-11-06 22:43:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-06 22:43:57,528 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:57,528 INFO L195 NwaCegarLoop]: trace histogram [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 22:43:57,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 22:43:57,529 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:57,529 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:57,530 INFO L85 PathProgramCache]: Analyzing trace with hash 770660731, now seen corresponding path program 1 times [2023-11-06 22:43:57,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:57,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670524609] [2023-11-06 22:43:57,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:57,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:57,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:57,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:43:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,742 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 22:43:57,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:57,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670524609] [2023-11-06 22:43:57,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670524609] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:57,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:57,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:43:57,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336316489] [2023-11-06 22:43:57,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:57,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:43:57,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:57,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:43:57,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:43:57,747 INFO L87 Difference]: Start difference. First operand 78 states and 102 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:43:57,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:57,787 INFO L93 Difference]: Finished difference Result 78 states and 102 transitions. [2023-11-06 22:43:57,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:57,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2023-11-06 22:43:57,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:57,790 INFO L225 Difference]: With dead ends: 78 [2023-11-06 22:43:57,790 INFO L226 Difference]: Without dead ends: 77 [2023-11-06 22:43:57,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 22:43:57,792 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 11 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:57,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 269 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-11-06 22:43:57,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2023-11-06 22:43:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 60 states have internal predecessors, (65), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:43:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2023-11-06 22:43:57,818 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 24 [2023-11-06 22:43:57,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:57,820 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2023-11-06 22:43:57,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 22:43:57,821 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2023-11-06 22:43:57,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-06 22:43:57,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:57,824 INFO L195 NwaCegarLoop]: trace histogram [1, 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 22:43:57,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 22:43:57,824 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:57,825 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:57,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1879321038, now seen corresponding path program 1 times [2023-11-06 22:43:57,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:57,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000775397] [2023-11-06 22:43:57,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:57,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:57,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:43:57,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:57,978 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 22:43:57,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:57,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000775397] [2023-11-06 22:43:57,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000775397] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:57,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:57,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:43:57,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55457688] [2023-11-06 22:43:57,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:57,988 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:43:57,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:57,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:43:57,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:43:57,990 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 22:43:58,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:58,021 INFO L93 Difference]: Finished difference Result 77 states and 101 transitions. [2023-11-06 22:43:58,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:43:58,028 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2023-11-06 22:43:58,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:58,030 INFO L225 Difference]: With dead ends: 77 [2023-11-06 22:43:58,030 INFO L226 Difference]: Without dead ends: 76 [2023-11-06 22:43:58,031 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 22:43:58,032 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:58,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 193 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:58,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-11-06 22:43:58,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-11-06 22:43:58,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 48 states have (on average 1.3333333333333333) internal successors, (64), 59 states have internal predecessors, (64), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 17 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:43:58,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 100 transitions. [2023-11-06 22:43:58,063 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 100 transitions. Word has length 25 [2023-11-06 22:43:58,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:58,063 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 100 transitions. [2023-11-06 22:43:58,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-06 22:43:58,063 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2023-11-06 22:43:58,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-06 22:43:58,065 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:58,072 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-06 22:43:58,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 22:43:58,073 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:58,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:58,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1109155225, now seen corresponding path program 1 times [2023-11-06 22:43:58,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:58,074 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671825308] [2023-11-06 22:43:58,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:58,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:43:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2023-11-06 22:43:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-06 22:43:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 22:43:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,281 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 22:43:58,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:58,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671825308] [2023-11-06 22:43:58,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671825308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:58,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:58,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:43:58,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14224013] [2023-11-06 22:43:58,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:58,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:43:58,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:58,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:43:58,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:43:58,285 INFO L87 Difference]: Start difference. First operand 76 states and 100 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:43:58,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:58,326 INFO L93 Difference]: Finished difference Result 132 states and 170 transitions. [2023-11-06 22:43:58,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:58,330 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2023-11-06 22:43:58,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:58,335 INFO L225 Difference]: With dead ends: 132 [2023-11-06 22:43:58,336 INFO L226 Difference]: Without dead ends: 75 [2023-11-06 22:43:58,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:43:58,338 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:58,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 280 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:58,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-06 22:43:58,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-06 22:43:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 48 states have (on average 1.3125) internal successors, (63), 58 states have internal predecessors, (63), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:43:58,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2023-11-06 22:43:58,362 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 42 [2023-11-06 22:43:58,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:58,363 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2023-11-06 22:43:58,363 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), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:43:58,363 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2023-11-06 22:43:58,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-06 22:43:58,365 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:58,365 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-06 22:43:58,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-06 22:43:58,366 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:58,369 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:58,369 INFO L85 PathProgramCache]: Analyzing trace with hash 98430113, now seen corresponding path program 1 times [2023-11-06 22:43:58,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:58,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224198926] [2023-11-06 22:43:58,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:58,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:43:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:43:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:43:58,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-11-06 22:43:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:43:58,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:58,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224198926] [2023-11-06 22:43:58,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224198926] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:43:58,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977403921] [2023-11-06 22:43:58,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:58,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:58,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:58,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:58,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 22:43:58,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:58,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:43:58,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:58,826 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-06 22:43:58,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:58,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977403921] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:58,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:43:58,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-06 22:43:58,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962839642] [2023-11-06 22:43:58,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:58,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:43:58,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:58,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:43:58,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:58,831 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:43:58,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:58,859 INFO L93 Difference]: Finished difference Result 124 states and 156 transitions. [2023-11-06 22:43:58,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:58,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2023-11-06 22:43:58,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:58,861 INFO L225 Difference]: With dead ends: 124 [2023-11-06 22:43:58,861 INFO L226 Difference]: Without dead ends: 75 [2023-11-06 22:43:58,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:58,869 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 0 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:58,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 277 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:58,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-06 22:43:58,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-11-06 22:43:58,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 48 states have (on average 1.2916666666666667) internal successors, (62), 58 states have internal predecessors, (62), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:43:58,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2023-11-06 22:43:58,889 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 43 [2023-11-06 22:43:58,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:58,890 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2023-11-06 22:43:58,890 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:43:58,890 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2023-11-06 22:43:58,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-11-06 22:43:58,895 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:58,895 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-06 22:43:58,909 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 22:43:59,102 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:59,102 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:59,104 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1824274276, now seen corresponding path program 1 times [2023-11-06 22:43:59,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:59,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148164613] [2023-11-06 22:43:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:59,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:59,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:59,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:59,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:43:59,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:43:59,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:43:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:43:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,239 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 22:43:59,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:59,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148164613] [2023-11-06 22:43:59,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148164613] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:59,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:59,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:43:59,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024473562] [2023-11-06 22:43:59,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:59,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:43:59,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:59,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:43:59,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:43:59,242 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:43:59,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:59,284 INFO L93 Difference]: Finished difference Result 75 states and 96 transitions. [2023-11-06 22:43:59,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:59,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 45 [2023-11-06 22:43:59,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:59,289 INFO L225 Difference]: With dead ends: 75 [2023-11-06 22:43:59,289 INFO L226 Difference]: Without dead ends: 74 [2023-11-06 22:43:59,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 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 22:43:59,295 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 11 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:59,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 252 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:59,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2023-11-06 22:43:59,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2023-11-06 22:43:59,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 48 states have (on average 1.2708333333333333) internal successors, (61), 57 states have internal predecessors, (61), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:43:59,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 95 transitions. [2023-11-06 22:43:59,319 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 95 transitions. Word has length 45 [2023-11-06 22:43:59,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:59,320 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 95 transitions. [2023-11-06 22:43:59,320 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-06 22:43:59,320 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 95 transitions. [2023-11-06 22:43:59,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-06 22:43:59,325 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:59,325 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 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] [2023-11-06 22:43:59,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-06 22:43:59,326 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:59,326 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:59,327 INFO L85 PathProgramCache]: Analyzing trace with hash -717927596, now seen corresponding path program 1 times [2023-11-06 22:43:59,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:59,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755687719] [2023-11-06 22:43:59,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:59,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:59,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:59,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:43:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:43:59,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:43:59,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:43:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,446 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-06 22:43:59,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:59,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755687719] [2023-11-06 22:43:59,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755687719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:59,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:43:59,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:43:59,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505896935] [2023-11-06 22:43:59,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:59,465 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 22:43:59,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:59,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:43:59,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:43:59,466 INFO L87 Difference]: Start difference. First operand 74 states and 95 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:43:59,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:59,480 INFO L93 Difference]: Finished difference Result 74 states and 95 transitions. [2023-11-06 22:43:59,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:43:59,481 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 46 [2023-11-06 22:43:59,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:59,482 INFO L225 Difference]: With dead ends: 74 [2023-11-06 22:43:59,482 INFO L226 Difference]: Without dead ends: 73 [2023-11-06 22:43:59,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 22:43:59,483 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:59,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 181 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:59,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-06 22:43:59,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-06 22:43:59,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.25) internal successors, (60), 56 states have internal predecessors, (60), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:43:59,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 94 transitions. [2023-11-06 22:43:59,500 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 94 transitions. Word has length 46 [2023-11-06 22:43:59,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:59,501 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 94 transitions. [2023-11-06 22:43:59,501 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, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-11-06 22:43:59,501 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 94 transitions. [2023-11-06 22:43:59,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-06 22:43:59,506 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:59,506 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:43:59,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 22:43:59,507 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:43:59,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:43:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash -857706864, now seen corresponding path program 1 times [2023-11-06 22:43:59,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:43:59,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708683536] [2023-11-06 22:43:59,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:59,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:43:59,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:43:59,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:43:59,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:43:59,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:43:59,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:43:59,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:43:59,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:43:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:43:59,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2023-11-06 22:43:59,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:43:59,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708683536] [2023-11-06 22:43:59,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708683536] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:43:59,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876764782] [2023-11-06 22:43:59,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:43:59,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:43:59,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:43:59,667 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:43:59,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 22:43:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:43:59,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:43:59,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:43:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-06 22:43:59,860 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:43:59,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876764782] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:43:59,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:43:59,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-06 22:43:59,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638320037] [2023-11-06 22:43:59,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:43:59,863 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:43:59,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:43:59,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:43:59,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:59,865 INFO L87 Difference]: Start difference. First operand 73 states and 94 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:43:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:43:59,885 INFO L93 Difference]: Finished difference Result 111 states and 137 transitions. [2023-11-06 22:43:59,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:43:59,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 57 [2023-11-06 22:43:59,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:43:59,888 INFO L225 Difference]: With dead ends: 111 [2023-11-06 22:43:59,888 INFO L226 Difference]: Without dead ends: 73 [2023-11-06 22:43:59,889 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:43:59,892 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:43:59,892 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 268 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:43:59,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-11-06 22:43:59,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2023-11-06 22:43:59,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 48 states have (on average 1.2291666666666667) internal successors, (59), 56 states have internal predecessors, (59), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-06 22:43:59,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 93 transitions. [2023-11-06 22:43:59,911 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 93 transitions. Word has length 57 [2023-11-06 22:43:59,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:43:59,912 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 93 transitions. [2023-11-06 22:43:59,912 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-06 22:43:59,912 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 93 transitions. [2023-11-06 22:43:59,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-06 22:43:59,918 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:43:59,918 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2023-11-06 22:43:59,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:00,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:00,124 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:44:00,124 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:00,124 INFO L85 PathProgramCache]: Analyzing trace with hash -188931298, now seen corresponding path program 1 times [2023-11-06 22:44:00,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:00,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675308901] [2023-11-06 22:44:00,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:00,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:44:00,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:44:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:44:00,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:44:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:44:00,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:44:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:44:00,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:44:00,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:44:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,240 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2023-11-06 22:44:00,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:00,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675308901] [2023-11-06 22:44:00,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675308901] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:00,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:00,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:00,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337508657] [2023-11-06 22:44:00,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:00,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:44:00,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:00,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:44:00,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:44:00,243 INFO L87 Difference]: Start difference. First operand 73 states and 93 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-06 22:44:00,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:00,268 INFO L93 Difference]: Finished difference Result 81 states and 103 transitions. [2023-11-06 22:44:00,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:44:00,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 63 [2023-11-06 22:44:00,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:00,270 INFO L225 Difference]: With dead ends: 81 [2023-11-06 22:44:00,270 INFO L226 Difference]: Without dead ends: 79 [2023-11-06 22:44:00,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 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 22:44:00,271 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 4 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 264 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 22:44:00,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 264 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:00,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-11-06 22:44:00,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 78. [2023-11-06 22:44:00,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.2307692307692308) internal successors, (64), 59 states have internal predecessors, (64), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 22:44:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2023-11-06 22:44:00,279 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 63 [2023-11-06 22:44:00,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:00,280 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2023-11-06 22:44:00,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-06 22:44:00,280 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2023-11-06 22:44:00,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-06 22:44:00,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:00,281 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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 22:44:00,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-06 22:44:00,282 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:44:00,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:00,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1013844052, now seen corresponding path program 1 times [2023-11-06 22:44:00,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:00,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108742201] [2023-11-06 22:44:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:00,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:00,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:44:00,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:44:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:44:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:44:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:44:00,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:44:00,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:44:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:44:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:44:00,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-06 22:44:00,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,419 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2023-11-06 22:44:00,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:00,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108742201] [2023-11-06 22:44:00,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108742201] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:00,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:00,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 22:44:00,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192443896] [2023-11-06 22:44:00,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:00,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:44:00,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:00,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:44:00,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:44:00,424 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:44:00,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:00,439 INFO L93 Difference]: Finished difference Result 101 states and 124 transitions. [2023-11-06 22:44:00,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:44:00,440 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2023-11-06 22:44:00,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:00,442 INFO L225 Difference]: With dead ends: 101 [2023-11-06 22:44:00,442 INFO L226 Difference]: Without dead ends: 70 [2023-11-06 22:44:00,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:44:00,444 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:00,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 253 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-06 22:44:00,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-06 22:44:00,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.1666666666666667) internal successors, (56), 53 states have internal predecessors, (56), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:44:00,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2023-11-06 22:44:00,455 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 68 [2023-11-06 22:44:00,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:00,457 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2023-11-06 22:44:00,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-06 22:44:00,457 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2023-11-06 22:44:00,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 22:44:00,458 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:00,458 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:00,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 22:44:00,459 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:44:00,459 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:00,460 INFO L85 PathProgramCache]: Analyzing trace with hash 59595581, now seen corresponding path program 1 times [2023-11-06 22:44:00,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:00,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130861891] [2023-11-06 22:44:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:00,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:44:00,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:44:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:44:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:44:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:44:00,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:44:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:44:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:44:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:44:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2023-11-06 22:44:00,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-06 22:44:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,646 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-06 22:44:00,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:00,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130861891] [2023-11-06 22:44:00,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130861891] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:44:00,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [618097774] [2023-11-06 22:44:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:00,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:00,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:00,653 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:00,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 22:44:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:00,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:44:00,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:00,831 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-06 22:44:00,831 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:44:00,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [618097774] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:00,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:44:00,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-06 22:44:00,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551312249] [2023-11-06 22:44:00,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:00,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:44:00,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:00,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:44:00,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:00,834 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:44:00,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:00,847 INFO L93 Difference]: Finished difference Result 84 states and 103 transitions. [2023-11-06 22:44:00,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:44:00,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 76 [2023-11-06 22:44:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:00,849 INFO L225 Difference]: With dead ends: 84 [2023-11-06 22:44:00,849 INFO L226 Difference]: Without dead ends: 70 [2023-11-06 22:44:00,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:00,850 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:00,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:00,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-06 22:44:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-06 22:44:00,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.1458333333333333) internal successors, (55), 53 states have internal predecessors, (55), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:44:00,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 87 transitions. [2023-11-06 22:44:00,857 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 87 transitions. Word has length 76 [2023-11-06 22:44:00,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:00,858 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 87 transitions. [2023-11-06 22:44:00,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (11), 2 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2023-11-06 22:44:00,858 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 87 transitions. [2023-11-06 22:44:00,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-06 22:44:00,860 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:00,860 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:00,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:01,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:01,066 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:44:01,066 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:01,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1963041257, now seen corresponding path program 1 times [2023-11-06 22:44:01,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:01,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368057659] [2023-11-06 22:44:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:01,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:01,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:44:01,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:44:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:44:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:44:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:44:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:44:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:44:01,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:44:01,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:44:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:44:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:44:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:44:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,212 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-06 22:44:01,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:01,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368057659] [2023-11-06 22:44:01,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368057659] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:01,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:44:01,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:44:01,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62963605] [2023-11-06 22:44:01,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:01,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:44:01,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:01,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:44:01,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 22:44:01,215 INFO L87 Difference]: Start difference. First operand 70 states and 87 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:44:01,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:01,241 INFO L93 Difference]: Finished difference Result 77 states and 94 transitions. [2023-11-06 22:44:01,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:44:01,241 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2023-11-06 22:44:01,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:01,242 INFO L225 Difference]: With dead ends: 77 [2023-11-06 22:44:01,243 INFO L226 Difference]: Without dead ends: 70 [2023-11-06 22:44:01,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 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 22:44:01,244 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 3 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 257 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 22:44:01,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 257 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:01,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-11-06 22:44:01,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-11-06 22:44:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.125) internal successors, (54), 53 states have internal predecessors, (54), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-06 22:44:01,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2023-11-06 22:44:01,253 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 83 [2023-11-06 22:44:01,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:01,253 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2023-11-06 22:44:01,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 4 states have internal predecessors, (41), 2 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:44:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2023-11-06 22:44:01,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-06 22:44:01,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 22:44:01,260 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:01,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-06 22:44:01,260 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-11-06 22:44:01,261 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:44:01,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1153694631, now seen corresponding path program 1 times [2023-11-06 22:44:01,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:44:01,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162515493] [2023-11-06 22:44:01,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:01,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:44:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 22:44:01,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-06 22:44:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 22:44:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-06 22:44:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-06 22:44:01,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-06 22:44:01,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-11-06 22:44:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-06 22:44:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2023-11-06 22:44:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-06 22:44:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-06 22:44:01,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2023-11-06 22:44:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,401 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-11-06 22:44:01,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:44:01,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162515493] [2023-11-06 22:44:01,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162515493] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 22:44:01,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633795924] [2023-11-06 22:44:01,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:44:01,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 22:44:01,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:44:01,405 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 22:44:01,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 22:44:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:44:01,567 INFO L262 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 22:44:01,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 22:44:01,610 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-06 22:44:01,610 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 22:44:01,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633795924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:44:01,611 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 22:44:01,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2023-11-06 22:44:01,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627029097] [2023-11-06 22:44:01,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:44:01,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 22:44:01,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:44:01,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 22:44:01,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:01,615 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:44:01,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:44:01,625 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2023-11-06 22:44:01,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 22:44:01,626 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2023-11-06 22:44:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 22:44:01,627 INFO L225 Difference]: With dead ends: 73 [2023-11-06 22:44:01,627 INFO L226 Difference]: Without dead ends: 0 [2023-11-06 22:44:01,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-06 22:44:01,628 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 22:44:01,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 227 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 22:44:01,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-06 22:44:01,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-06 22:44:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 22:44:01,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-06 22:44:01,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2023-11-06 22:44:01,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 22:44:01,631 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-06 22:44:01,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-06 22:44:01,631 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-06 22:44:01,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-06 22:44:01,634 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2023-11-06 22:44:01,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2023-11-06 22:44:01,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2023-11-06 22:44:01,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2023-11-06 22:44:01,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2023-11-06 22:44:01,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2023-11-06 22:44:01,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2023-11-06 22:44:01,636 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2023-11-06 22:44:01,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 22:44:01,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 22:44:01,844 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-06 22:44:01,890 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2023-11-06 22:44:01,890 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2023-11-06 22:44:01,891 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2023-11-06 22:44:01,891 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2023-11-06 22:44:01,891 INFO L899 garLoopResultBuilder]: For program point staticReturnsFalseEXIT(lines 1552 1555) no Hoare annotation was computed. [2023-11-06 22:44:01,891 INFO L899 garLoopResultBuilder]: For program point staticReturnsFalseFINAL(lines 1552 1555) no Hoare annotation was computed. [2023-11-06 22:44:01,891 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1552 1555) the Hoare annotation is: true [2023-11-06 22:44:01,891 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2023-11-06 22:44:01,892 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2023-11-06 22:44:01,892 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2023-11-06 22:44:01,892 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1614) no Hoare annotation was computed. [2023-11-06 22:44:01,892 INFO L899 garLoopResultBuilder]: For program point L1662(lines 1662 1668) no Hoare annotation was computed. [2023-11-06 22:44:01,892 INFO L895 garLoopResultBuilder]: At program point L1596(line 1596) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648)) [2023-11-06 22:44:01,892 INFO L899 garLoopResultBuilder]: For program point L1596-1(line 1596) no Hoare annotation was computed. [2023-11-06 22:44:01,893 INFO L899 garLoopResultBuilder]: For program point L1596-2(lines 1596 1609) no Hoare annotation was computed. [2023-11-06 22:44:01,893 INFO L895 garLoopResultBuilder]: At program point L1596-4(lines 1596 1609) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648)) [2023-11-06 22:44:01,893 INFO L895 garLoopResultBuilder]: At program point L1588(line 1588) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) [2023-11-06 22:44:01,893 INFO L899 garLoopResultBuilder]: For program point L1588-1(lines 1556 1591) no Hoare annotation was computed. [2023-11-06 22:44:01,893 INFO L899 garLoopResultBuilder]: For program point L1580(lines 1580 1589) no Hoare annotation was computed. [2023-11-06 22:44:01,893 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 1669 1676) the Hoare annotation is: true [2023-11-06 22:44:01,894 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2023-11-06 22:44:01,894 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2023-11-06 22:44:01,894 INFO L895 garLoopResultBuilder]: At program point L1630(line 1630) the Hoare annotation is: false [2023-11-06 22:44:01,894 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-11-06 22:44:01,894 INFO L899 garLoopResultBuilder]: For program point L1564(lines 1564 1571) no Hoare annotation was computed. [2023-11-06 22:44:01,894 INFO L899 garLoopResultBuilder]: For program point L1614(line 1614) no Hoare annotation was computed. [2023-11-06 22:44:01,894 INFO L899 garLoopResultBuilder]: For program point L1614-1(line 1614) no Hoare annotation was computed. [2023-11-06 22:44:01,895 INFO L902 garLoopResultBuilder]: At program point L1672(line 1672) the Hoare annotation is: true [2023-11-06 22:44:01,895 INFO L899 garLoopResultBuilder]: For program point L1672-1(line 1672) no Hoare annotation was computed. [2023-11-06 22:44:01,895 INFO L899 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2023-11-06 22:44:01,895 INFO L895 garLoopResultBuilder]: At program point L1606(line 1606) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648)) [2023-11-06 22:44:01,895 INFO L899 garLoopResultBuilder]: For program point L1639-1(line 1639) no Hoare annotation was computed. [2023-11-06 22:44:01,895 INFO L899 garLoopResultBuilder]: For program point L1606-1(lines 1600 1607) no Hoare annotation was computed. [2023-11-06 22:44:01,896 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2023-11-06 22:44:01,896 INFO L899 garLoopResultBuilder]: For program point L1656(line 1656) no Hoare annotation was computed. [2023-11-06 22:44:01,896 INFO L899 garLoopResultBuilder]: For program point L1656-1(line 1656) no Hoare annotation was computed. [2023-11-06 22:44:01,896 INFO L899 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2023-11-06 22:44:01,896 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2023-11-06 22:44:01,896 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-06 22:44:01,896 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2023-11-06 22:44:01,897 INFO L899 garLoopResultBuilder]: For program point L1574-1(lines 1574 1590) no Hoare annotation was computed. [2023-11-06 22:44:01,897 INFO L899 garLoopResultBuilder]: For program point L1624(lines 1624 1644) no Hoare annotation was computed. [2023-11-06 22:44:01,897 INFO L902 garLoopResultBuilder]: At program point L1649(line 1649) the Hoare annotation is: true [2023-11-06 22:44:01,897 INFO L895 garLoopResultBuilder]: At program point L1616(line 1616) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648)) [2023-11-06 22:44:01,897 INFO L899 garLoopResultBuilder]: For program point L1649-1(line 1649) no Hoare annotation was computed. [2023-11-06 22:44:01,897 INFO L899 garLoopResultBuilder]: For program point L1616-1(line 1616) no Hoare annotation was computed. [2023-11-06 22:44:01,898 INFO L899 garLoopResultBuilder]: For program point L1649-2(lines 1649 1652) no Hoare annotation was computed. [2023-11-06 22:44:01,898 INFO L895 garLoopResultBuilder]: At program point L1649-4(lines 1649 1652) the Hoare annotation is: (= |ULTIMATE.start_goodG2B2_~data~3#1| 2) [2023-11-06 22:44:01,898 INFO L902 garLoopResultBuilder]: At program point L1674(line 1674) the Hoare annotation is: true [2023-11-06 22:44:01,898 INFO L902 garLoopResultBuilder]: At program point L1641(line 1641) the Hoare annotation is: true [2023-11-06 22:44:01,898 INFO L899 garLoopResultBuilder]: For program point L1674-1(line 1674) no Hoare annotation was computed. [2023-11-06 22:44:01,898 INFO L899 garLoopResultBuilder]: For program point L1641-1(line 1641) no Hoare annotation was computed. [2023-11-06 22:44:01,899 INFO L899 garLoopResultBuilder]: For program point L1600(lines 1600 1607) no Hoare annotation was computed. [2023-11-06 22:44:01,899 INFO L902 garLoopResultBuilder]: At program point L1658(line 1658) the Hoare annotation is: true [2023-11-06 22:44:01,899 INFO L899 garLoopResultBuilder]: For program point L1658-1(line 1658) no Hoare annotation was computed. [2023-11-06 22:44:01,899 INFO L899 garLoopResultBuilder]: For program point L1592(lines 1592 1623) no Hoare annotation was computed. [2023-11-06 22:44:01,899 INFO L895 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) [2023-11-06 22:44:01,899 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2023-11-06 22:44:01,899 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: false [2023-11-06 22:44:01,900 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-11-06 22:44:01,900 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1639) no Hoare annotation was computed. [2023-11-06 22:44:01,910 INFO L895 garLoopResultBuilder]: At program point L1560(line 1560) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) [2023-11-06 22:44:01,910 INFO L899 garLoopResultBuilder]: For program point L1560-1(line 1560) no Hoare annotation was computed. [2023-11-06 22:44:01,910 INFO L899 garLoopResultBuilder]: For program point L1560-2(lines 1560 1573) no Hoare annotation was computed. [2023-11-06 22:44:01,911 INFO L895 garLoopResultBuilder]: At program point L1560-4(lines 1560 1573) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) [2023-11-06 22:44:01,911 INFO L899 garLoopResultBuilder]: For program point L1610(line 1610) no Hoare annotation was computed. [2023-11-06 22:44:01,911 INFO L899 garLoopResultBuilder]: For program point L1610-1(lines 1610 1622) no Hoare annotation was computed. [2023-11-06 22:44:01,911 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-06 22:44:01,911 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1639) no Hoare annotation was computed. [2023-11-06 22:44:01,911 INFO L899 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2023-11-06 22:44:01,911 INFO L899 garLoopResultBuilder]: For program point L1636-1(lines 1636 1643) no Hoare annotation was computed. [2023-11-06 22:44:01,912 INFO L895 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648)) [2023-11-06 22:44:01,912 INFO L899 garLoopResultBuilder]: For program point L1570-1(lines 1564 1571) no Hoare annotation was computed. [2023-11-06 22:44:01,912 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1614) no Hoare annotation was computed. [2023-11-06 22:44:01,912 INFO L902 garLoopResultBuilder]: At program point L1628(line 1628) the Hoare annotation is: true [2023-11-06 22:44:01,912 INFO L899 garLoopResultBuilder]: For program point L1628-1(line 1628) no Hoare annotation was computed. [2023-11-06 22:44:01,913 INFO L899 garLoopResultBuilder]: For program point L1628-2(lines 1628 1635) no Hoare annotation was computed. [2023-11-06 22:44:01,913 INFO L895 garLoopResultBuilder]: At program point L1628-3(lines 1628 1635) the Hoare annotation is: (= 2 |ULTIMATE.start_goodG2B1_~data~2#1|) [2023-11-06 22:44:01,913 INFO L899 garLoopResultBuilder]: For program point L1653(line 1653) no Hoare annotation was computed. [2023-11-06 22:44:01,913 INFO L895 garLoopResultBuilder]: At program point L1620(line 1620) the Hoare annotation is: (<= 0 (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648)) [2023-11-06 22:44:01,913 INFO L899 garLoopResultBuilder]: For program point L1653-1(lines 1653 1660) no Hoare annotation was computed. [2023-11-06 22:44:01,913 INFO L899 garLoopResultBuilder]: For program point L1645(lines 1645 1661) no Hoare annotation was computed. [2023-11-06 22:44:01,913 INFO L899 garLoopResultBuilder]: For program point L1612(lines 1612 1621) no Hoare annotation was computed. [2023-11-06 22:44:01,914 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2023-11-06 22:44:01,914 INFO L899 garLoopResultBuilder]: For program point staticReturnsTrueFINAL(lines 1548 1551) no Hoare annotation was computed. [2023-11-06 22:44:01,914 INFO L899 garLoopResultBuilder]: For program point staticReturnsTrueEXIT(lines 1548 1551) no Hoare annotation was computed. [2023-11-06 22:44:01,914 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1548 1551) the Hoare annotation is: true [2023-11-06 22:44:01,918 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:44:01,921 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-06 22:44:01,932 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:44:01 BoogieIcfgContainer [2023-11-06 22:44:01,932 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-06 22:44:01,933 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:44:01,933 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:44:01,933 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:44:01,933 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:43:56" (3/4) ... [2023-11-06 22:44:01,936 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-06 22:44:01,941 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2023-11-06 22:44:01,941 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsFalse [2023-11-06 22:44:01,941 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2023-11-06 22:44:01,942 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsTrue [2023-11-06 22:44:01,951 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2023-11-06 22:44:01,951 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-06 22:44:01,952 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-06 22:44:01,952 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:44:01,953 INFO L939 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-06 22:44:02,041 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:44:02,041 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.yaml [2023-11-06 22:44:02,042 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:44:02,042 INFO L158 Benchmark]: Toolchain (without parser) took 7592.24ms. Allocated memory was 167.8MB in the beginning and 257.9MB in the end (delta: 90.2MB). Free memory was 130.2MB in the beginning and 216.7MB in the end (delta: -86.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-06 22:44:02,043 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:44:02,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1326.11ms. Allocated memory is still 167.8MB. Free memory was 130.2MB in the beginning and 64.7MB in the end (delta: 65.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-11-06 22:44:02,044 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.16ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 64.7MB in the beginning and 180.8MB in the end (delta: -116.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2023-11-06 22:44:02,044 INFO L158 Benchmark]: Boogie Preprocessor took 63.91ms. Allocated memory is still 213.9MB. Free memory was 180.8MB in the beginning and 179.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:44:02,045 INFO L158 Benchmark]: RCFGBuilder took 631.56ms. Allocated memory is still 213.9MB. Free memory was 178.9MB in the beginning and 164.4MB in the end (delta: 14.5MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2023-11-06 22:44:02,045 INFO L158 Benchmark]: TraceAbstraction took 5345.16ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 164.4MB in the beginning and 221.9MB in the end (delta: -57.5MB). Peak memory consumption was 120.2MB. Max. memory is 16.1GB. [2023-11-06 22:44:02,046 INFO L158 Benchmark]: Witness Printer took 109.15ms. Allocated memory is still 257.9MB. Free memory was 221.9MB in the beginning and 216.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-06 22:44:02,048 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 167.8MB. Free memory is still 111.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1326.11ms. Allocated memory is still 167.8MB. Free memory was 130.2MB in the beginning and 64.7MB in the end (delta: 65.5MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.16ms. Allocated memory was 167.8MB in the beginning and 213.9MB in the end (delta: 46.1MB). Free memory was 64.7MB in the beginning and 180.8MB in the end (delta: -116.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.91ms. Allocated memory is still 213.9MB. Free memory was 180.8MB in the beginning and 179.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 631.56ms. Allocated memory is still 213.9MB. Free memory was 178.9MB in the beginning and 164.4MB in the end (delta: 14.5MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5345.16ms. Allocated memory was 213.9MB in the beginning and 257.9MB in the end (delta: 44.0MB). Free memory was 164.4MB in the beginning and 221.9MB in the end (delta: -57.5MB). Peak memory consumption was 120.2MB. Max. memory is 16.1GB. * Witness Printer took 109.15ms. Allocated memory is still 257.9MB. Free memory was 221.9MB in the beginning and 216.7MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * 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 - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1614]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1614]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1639]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1639]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 87 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 13, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 3302 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2107 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 1195 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 486 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 91 PreInvPairs, 107 NumberOfFragments, 69 HoareAnnotationTreeSize, 91 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 25 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 936 NumberOfCodeBlocks, 936 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 919 ConstructedInterpolants, 0 QuantifiedInterpolants, 1079 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1069 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 17 InterpolantComputations, 13 PerfectInterpolantSequences, 483/493 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1669]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2023-11-06 22:44:02,076 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0a35f1be-5204-4083-b198-27aed0800a7c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE