./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f5c3252c23e9c49e7b3cce6858e3c801f843203fda4604e23c25c5a714e6a2c0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:48:04,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:48:04,604 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:48:04,610 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:48:04,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:48:04,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:48:04,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:48:04,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:48:04,652 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:48:04,653 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:48:04,653 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:48:04,654 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:48:04,655 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:48:04,655 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:48:04,656 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:48:04,656 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:48:04,657 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:48:04,658 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:48:04,658 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:48:04,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:48:04,659 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:48:04,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:48:04,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:48:04,661 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:48:04,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:48:04,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:48:04,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:48:04,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:04,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:48:04,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:48:04,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:48:04,665 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:48:04,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:48:04,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:48:04,666 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:48:04,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:48:04,667 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:48:04,667 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:48:04,667 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_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5c3252c23e9c49e7b3cce6858e3c801f843203fda4604e23c25c5a714e6a2c0 [2023-11-19 07:48:04,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:48:05,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:48:05,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:48:05,006 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:48:05,007 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:48:05,009 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i [2023-11-19 07:48:08,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:48:08,704 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:48:08,705 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/sv-benchmarks/c/busybox-1.22.0/mkfifo-incomplete-1.i [2023-11-19 07:48:08,743 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/data/f14c0bd5b/f0b50d2a37e84abc821ead5b9d6d7d52/FLAGcb27a3d95 [2023-11-19 07:48:08,763 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/data/f14c0bd5b/f0b50d2a37e84abc821ead5b9d6d7d52 [2023-11-19 07:48:08,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:48:08,773 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:48:08,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:08,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:48:08,782 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:48:08,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7874eb4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:08, skipping insertion in model container [2023-11-19 07:48:08,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:48:08" (1/1) ... [2023-11-19 07:48:08,868 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:48:10,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:10,070 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:48:10,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:48:10,466 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:10,480 WARN L675 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:48:10,488 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:48:10,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10 WrapperNode [2023-11-19 07:48:10,502 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:48:10,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:10,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:48:10,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:48:10,531 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,608 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,681 INFO L138 Inliner]: procedures = 574, calls = 148, calls flagged for inlining = 16, calls inlined = 15, statements flattened = 521 [2023-11-19 07:48:10,682 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:48:10,683 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:48:10,683 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:48:10,683 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:48:10,692 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,704 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,755 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,786 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,800 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:48:10,816 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:48:10,816 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:48:10,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:48:10,817 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (1/1) ... [2023-11-19 07:48:10,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:48:10,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:10,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:48:10,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:48:10,897 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-19 07:48:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:48:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:48:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:48:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:48:10,898 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:48:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-19 07:48:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:48:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:48:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:48:10,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:48:10,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:48:10,900 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:48:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:48:10,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:48:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:48:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:48:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:48:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:48:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:48:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:48:11,291 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:48:11,293 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:48:11,972 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:48:11,988 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:48:11,989 INFO L302 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-19 07:48:11,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:11 BoogieIcfgContainer [2023-11-19 07:48:11,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:48:11,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:48:11,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:48:12,003 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:48:12,003 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:48:08" (1/3) ... [2023-11-19 07:48:12,004 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee7aa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:12, skipping insertion in model container [2023-11-19 07:48:12,004 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:48:10" (2/3) ... [2023-11-19 07:48:12,005 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee7aa91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:48:12, skipping insertion in model container [2023-11-19 07:48:12,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:48:11" (3/3) ... [2023-11-19 07:48:12,006 INFO L112 eAbstractionObserver]: Analyzing ICFG mkfifo-incomplete-1.i [2023-11-19 07:48:12,028 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:48:12,029 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 32 error locations. [2023-11-19 07:48:12,088 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:48:12,096 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31e79038, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:48:12,096 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-11-19 07:48:12,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 118 states have (on average 1.6610169491525424) internal successors, (196), 150 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 07:48:12,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:12,110 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-19 07:48:12,110 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:12,116 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:12,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1603013, now seen corresponding path program 1 times [2023-11-19 07:48:12,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:12,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042515662] [2023-11-19 07:48:12,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:12,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:12,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:12,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:12,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042515662] [2023-11-19 07:48:12,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042515662] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:12,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:12,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:12,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605025002] [2023-11-19 07:48:12,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:12,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:12,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:12,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:12,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:12,696 INFO L87 Difference]: Start difference. First operand has 162 states, 118 states have (on average 1.6610169491525424) internal successors, (196), 150 states have internal predecessors, (196), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:12,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:12,775 INFO L93 Difference]: Finished difference Result 322 states and 435 transitions. [2023-11-19 07:48:12,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:12,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-19 07:48:12,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:12,788 INFO L225 Difference]: With dead ends: 322 [2023-11-19 07:48:12,788 INFO L226 Difference]: Without dead ends: 161 [2023-11-19 07:48:12,793 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:12,797 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 1 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:12,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 394 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:12,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-19 07:48:12,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-11-19 07:48:12,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 118 states have (on average 1.5593220338983051) internal successors, (184), 149 states have internal predecessors, (184), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:12,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 202 transitions. [2023-11-19 07:48:12,855 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 202 transitions. Word has length 4 [2023-11-19 07:48:12,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:12,855 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 202 transitions. [2023-11-19 07:48:12,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 202 transitions. [2023-11-19 07:48:12,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-19 07:48:12,857 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:12,857 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-19 07:48:12,857 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:48:12,857 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:12,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:12,858 INFO L85 PathProgramCache]: Analyzing trace with hash 510786401, now seen corresponding path program 1 times [2023-11-19 07:48:12,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:12,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783183410] [2023-11-19 07:48:12,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:12,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:12,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:13,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:13,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783183410] [2023-11-19 07:48:13,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783183410] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:13,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [790264380] [2023-11-19 07:48:13,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:13,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:13,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:13,030 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:13,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-19 07:48:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:13,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:13,282 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:13,360 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:13,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [790264380] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:13,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:13,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:48:13,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092717702] [2023-11-19 07:48:13,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:13,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:13,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:13,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:13,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:13,364 INFO L87 Difference]: Start difference. First operand 161 states and 202 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:13,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:13,433 INFO L93 Difference]: Finished difference Result 161 states and 202 transitions. [2023-11-19 07:48:13,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:13,434 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-19 07:48:13,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:13,440 INFO L225 Difference]: With dead ends: 161 [2023-11-19 07:48:13,440 INFO L226 Difference]: Without dead ends: 160 [2023-11-19 07:48:13,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:13,446 INFO L413 NwaCegarLoop]: 193 mSDtfsCounter, 3 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 575 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:13,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 575 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:13,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-19 07:48:13,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-19 07:48:13,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 118 states have (on average 1.5508474576271187) internal successors, (183), 148 states have internal predecessors, (183), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:13,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 201 transitions. [2023-11-19 07:48:13,478 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 201 transitions. Word has length 7 [2023-11-19 07:48:13,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:13,478 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 201 transitions. [2023-11-19 07:48:13,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 201 transitions. [2023-11-19 07:48:13,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 07:48:13,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:13,482 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-19 07:48:13,507 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-19 07:48:13,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-11-19 07:48:13,707 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:13,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:13,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1345490686, now seen corresponding path program 1 times [2023-11-19 07:48:13,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:13,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440366425] [2023-11-19 07:48:13,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:13,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:13,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:48:13,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:13,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440366425] [2023-11-19 07:48:13,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440366425] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:13,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:13,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:13,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534762108] [2023-11-19 07:48:13,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:13,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:13,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:13,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:13,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:13,826 INFO L87 Difference]: Start difference. First operand 160 states and 201 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:13,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:13,851 INFO L93 Difference]: Finished difference Result 160 states and 201 transitions. [2023-11-19 07:48:13,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:13,852 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-19 07:48:13,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:13,853 INFO L225 Difference]: With dead ends: 160 [2023-11-19 07:48:13,853 INFO L226 Difference]: Without dead ends: 159 [2023-11-19 07:48:13,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:13,855 INFO L413 NwaCegarLoop]: 194 mSDtfsCounter, 0 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:13,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 385 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-11-19 07:48:13,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 157. [2023-11-19 07:48:13,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 116 states have (on average 1.5517241379310345) internal successors, (180), 145 states have internal predecessors, (180), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:13,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 198 transitions. [2023-11-19 07:48:13,870 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 198 transitions. Word has length 8 [2023-11-19 07:48:13,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:13,871 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 198 transitions. [2023-11-19 07:48:13,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 07:48:13,871 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 198 transitions. [2023-11-19 07:48:13,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 07:48:13,872 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:13,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:13,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:48:13,872 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:13,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:13,873 INFO L85 PathProgramCache]: Analyzing trace with hash -635142922, now seen corresponding path program 1 times [2023-11-19 07:48:13,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:13,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724335068] [2023-11-19 07:48:13,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:13,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:48:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:14,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:14,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:14,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724335068] [2023-11-19 07:48:14,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724335068] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:14,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372515390] [2023-11-19 07:48:14,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:14,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:14,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:14,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:14,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-19 07:48:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:14,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 07:48:14,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:14,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 07:48:14,224 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:14,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372515390] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:14,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:14,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-19 07:48:14,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907295983] [2023-11-19 07:48:14,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:14,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:14,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:14,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:14,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:14,227 INFO L87 Difference]: Start difference. First operand 157 states and 198 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:14,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:14,263 INFO L93 Difference]: Finished difference Result 157 states and 198 transitions. [2023-11-19 07:48:14,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:14,264 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-19 07:48:14,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:14,265 INFO L225 Difference]: With dead ends: 157 [2023-11-19 07:48:14,265 INFO L226 Difference]: Without dead ends: 155 [2023-11-19 07:48:14,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:14,267 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 162 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:14,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 207 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:14,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-19 07:48:14,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2023-11-19 07:48:14,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 116 states have (on average 1.5344827586206897) internal successors, (178), 143 states have internal predecessors, (178), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 196 transitions. [2023-11-19 07:48:14,282 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 196 transitions. Word has length 13 [2023-11-19 07:48:14,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:14,283 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 196 transitions. [2023-11-19 07:48:14,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:14,284 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 196 transitions. [2023-11-19 07:48:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 07:48:14,284 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:14,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:14,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:14,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:14,501 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:14,501 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:14,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1785405974, now seen corresponding path program 1 times [2023-11-19 07:48:14,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:14,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982093527] [2023-11-19 07:48:14,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:14,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:14,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:48:14,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:14,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:14,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982093527] [2023-11-19 07:48:14,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982093527] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:14,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115049577] [2023-11-19 07:48:14,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:14,628 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:14,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:14,629 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:14,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-19 07:48:14,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:14,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:14,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:14,856 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:14,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115049577] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:14,891 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:14,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:48:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159904344] [2023-11-19 07:48:14,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:14,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:14,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:14,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:14,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:14,893 INFO L87 Difference]: Start difference. First operand 155 states and 196 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:14,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:14,947 INFO L93 Difference]: Finished difference Result 313 states and 397 transitions. [2023-11-19 07:48:14,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:14,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-19 07:48:14,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:14,949 INFO L225 Difference]: With dead ends: 313 [2023-11-19 07:48:14,950 INFO L226 Difference]: Without dead ends: 164 [2023-11-19 07:48:14,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:14,952 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 4 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:14,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 759 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:14,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-11-19 07:48:14,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-11-19 07:48:14,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 125 states have (on average 1.496) internal successors, (187), 152 states have internal predecessors, (187), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:14,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 205 transitions. [2023-11-19 07:48:14,979 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 205 transitions. Word has length 14 [2023-11-19 07:48:14,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:14,979 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 205 transitions. [2023-11-19 07:48:14,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:14,980 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 205 transitions. [2023-11-19 07:48:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 07:48:14,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:14,981 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:15,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:15,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:15,201 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:15,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash 85957170, now seen corresponding path program 2 times [2023-11-19 07:48:15,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:15,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053783210] [2023-11-19 07:48:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:15,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:15,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:48:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:15,528 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:48:15,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:15,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053783210] [2023-11-19 07:48:15,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053783210] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:15,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570585046] [2023-11-19 07:48:15,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:48:15,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:15,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:15,534 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:15,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-19 07:48:15,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:48:15,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:48:15,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:48:15,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:15,815 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:48:15,816 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:15,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570585046] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:15,816 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:15,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-19 07:48:15,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433048201] [2023-11-19 07:48:15,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:15,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:15,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:15,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:15,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:48:15,819 INFO L87 Difference]: Start difference. First operand 164 states and 205 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:15,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:15,932 INFO L93 Difference]: Finished difference Result 164 states and 205 transitions. [2023-11-19 07:48:15,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:48:15,934 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-19 07:48:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:15,935 INFO L225 Difference]: With dead ends: 164 [2023-11-19 07:48:15,935 INFO L226 Difference]: Without dead ends: 162 [2023-11-19 07:48:15,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:48:15,938 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 161 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 544 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:15,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 544 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:15,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-11-19 07:48:15,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-11-19 07:48:15,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 125 states have (on average 1.48) internal successors, (185), 150 states have internal predecessors, (185), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:15,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 203 transitions. [2023-11-19 07:48:15,953 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 203 transitions. Word has length 23 [2023-11-19 07:48:15,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:15,954 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 203 transitions. [2023-11-19 07:48:15,954 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:15,954 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 203 transitions. [2023-11-19 07:48:15,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 07:48:15,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:15,956 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:15,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:16,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:16,177 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:16,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:16,178 INFO L85 PathProgramCache]: Analyzing trace with hash 2052313703, now seen corresponding path program 1 times [2023-11-19 07:48:16,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:16,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434952706] [2023-11-19 07:48:16,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:16,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:16,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:16,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:48:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:16,365 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:48:16,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:16,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434952706] [2023-11-19 07:48:16,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434952706] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:16,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:16,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:16,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229481527] [2023-11-19 07:48:16,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:16,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:16,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:16,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:16,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:16,368 INFO L87 Difference]: Start difference. First operand 162 states and 203 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:16,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:16,405 INFO L93 Difference]: Finished difference Result 306 states and 389 transitions. [2023-11-19 07:48:16,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:16,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-19 07:48:16,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:16,408 INFO L225 Difference]: With dead ends: 306 [2023-11-19 07:48:16,409 INFO L226 Difference]: Without dead ends: 165 [2023-11-19 07:48:16,411 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:16,412 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:16,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 374 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:16,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2023-11-19 07:48:16,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2023-11-19 07:48:16,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 128 states have (on average 1.46875) internal successors, (188), 153 states have internal predecessors, (188), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 206 transitions. [2023-11-19 07:48:16,429 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 206 transitions. Word has length 28 [2023-11-19 07:48:16,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:16,429 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 206 transitions. [2023-11-19 07:48:16,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:16,432 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 206 transitions. [2023-11-19 07:48:16,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 07:48:16,434 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:16,434 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:16,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-19 07:48:16,435 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:16,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:16,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1618167649, now seen corresponding path program 1 times [2023-11-19 07:48:16,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:16,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226262868] [2023-11-19 07:48:16,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:16,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:16,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:16,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-19 07:48:16,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 07:48:16,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:16,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226262868] [2023-11-19 07:48:16,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226262868] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:16,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537934896] [2023-11-19 07:48:16,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:16,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:16,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:16,689 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:16,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-19 07:48:16,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:16,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:48:16,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:48:17,024 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:17,148 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 07:48:17,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537934896] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:17,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:17,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 07:48:17,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691258391] [2023-11-19 07:48:17,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:17,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:48:17,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:17,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:48:17,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:48:17,151 INFO L87 Difference]: Start difference. First operand 165 states and 206 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:48:17,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:17,286 INFO L93 Difference]: Finished difference Result 332 states and 420 transitions. [2023-11-19 07:48:17,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:48:17,287 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-19 07:48:17,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:17,288 INFO L225 Difference]: With dead ends: 332 [2023-11-19 07:48:17,289 INFO L226 Difference]: Without dead ends: 182 [2023-11-19 07:48:17,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:48:17,290 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 7 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1089 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:17,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1089 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:17,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-11-19 07:48:17,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2023-11-19 07:48:17,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 146 states have (on average 1.404109589041096) internal successors, (205), 170 states have internal predecessors, (205), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:17,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 223 transitions. [2023-11-19 07:48:17,302 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 223 transitions. Word has length 31 [2023-11-19 07:48:17,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:17,302 INFO L495 AbstractCegarLoop]: Abstraction has 182 states and 223 transitions. [2023-11-19 07:48:17,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 07:48:17,303 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 223 transitions. [2023-11-19 07:48:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:48:17,304 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:17,305 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:17,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:17,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:17,531 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:17,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:17,532 INFO L85 PathProgramCache]: Analyzing trace with hash -2026103325, now seen corresponding path program 1 times [2023-11-19 07:48:17,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:17,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114912197] [2023-11-19 07:48:17,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:17,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:17,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:17,790 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:48:17,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:17,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114912197] [2023-11-19 07:48:17,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114912197] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:17,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:17,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:17,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17393547] [2023-11-19 07:48:17,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:17,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:17,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:17,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:17,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:17,795 INFO L87 Difference]: Start difference. First operand 182 states and 223 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:17,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:17,841 INFO L93 Difference]: Finished difference Result 196 states and 239 transitions. [2023-11-19 07:48:17,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:17,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-19 07:48:17,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:17,845 INFO L225 Difference]: With dead ends: 196 [2023-11-19 07:48:17,845 INFO L226 Difference]: Without dead ends: 194 [2023-11-19 07:48:17,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:17,847 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 3 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:17,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 369 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:17,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2023-11-19 07:48:17,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2023-11-19 07:48:17,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 156 states have (on average 1.3974358974358974) internal successors, (218), 180 states have internal predecessors, (218), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:17,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 236 transitions. [2023-11-19 07:48:17,863 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 236 transitions. Word has length 50 [2023-11-19 07:48:17,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:17,863 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 236 transitions. [2023-11-19 07:48:17,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:17,864 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 236 transitions. [2023-11-19 07:48:17,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-19 07:48:17,870 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:17,871 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:17,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-19 07:48:17,871 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:17,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:17,873 INFO L85 PathProgramCache]: Analyzing trace with hash -2026101596, now seen corresponding path program 1 times [2023-11-19 07:48:17,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:17,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383501809] [2023-11-19 07:48:17,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:17,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:48:18,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:18,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383501809] [2023-11-19 07:48:18,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383501809] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:18,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:18,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:18,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174696241] [2023-11-19 07:48:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:18,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:18,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:18,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:18,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:18,095 INFO L87 Difference]: Start difference. First operand 192 states and 236 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:18,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:18,123 INFO L93 Difference]: Finished difference Result 192 states and 236 transitions. [2023-11-19 07:48:18,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:18,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-19 07:48:18,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:18,126 INFO L225 Difference]: With dead ends: 192 [2023-11-19 07:48:18,126 INFO L226 Difference]: Without dead ends: 191 [2023-11-19 07:48:18,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:18,127 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 0 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:18,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 372 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:18,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-19 07:48:18,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2023-11-19 07:48:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 152 states have (on average 1.394736842105263) internal successors, (212), 175 states have internal predecessors, (212), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:18,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 230 transitions. [2023-11-19 07:48:18,142 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 230 transitions. Word has length 50 [2023-11-19 07:48:18,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:18,144 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 230 transitions. [2023-11-19 07:48:18,144 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:18,144 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 230 transitions. [2023-11-19 07:48:18,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-19 07:48:18,145 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:18,146 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:18,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-19 07:48:18,146 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:18,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:18,147 INFO L85 PathProgramCache]: Analyzing trace with hash -560883160, now seen corresponding path program 1 times [2023-11-19 07:48:18,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:18,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530818431] [2023-11-19 07:48:18,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:18,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:18,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,384 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-19 07:48:18,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:18,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530818431] [2023-11-19 07:48:18,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530818431] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:18,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:18,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:18,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145492783] [2023-11-19 07:48:18,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:18,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:18,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:18,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:18,389 INFO L87 Difference]: Start difference. First operand 187 states and 230 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:18,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:18,419 INFO L93 Difference]: Finished difference Result 192 states and 235 transitions. [2023-11-19 07:48:18,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:18,420 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 55 [2023-11-19 07:48:18,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:18,422 INFO L225 Difference]: With dead ends: 192 [2023-11-19 07:48:18,423 INFO L226 Difference]: Without dead ends: 190 [2023-11-19 07:48:18,423 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:18,424 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 1 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 372 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 [2023-11-19 07:48:18,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 372 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:18,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-19 07:48:18,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-11-19 07:48:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 155 states have (on average 1.3870967741935485) internal successors, (215), 178 states have internal predecessors, (215), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:18,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 233 transitions. [2023-11-19 07:48:18,441 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 233 transitions. Word has length 55 [2023-11-19 07:48:18,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:18,441 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 233 transitions. [2023-11-19 07:48:18,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:18,441 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 233 transitions. [2023-11-19 07:48:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:48:18,444 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:18,444 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:18,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-19 07:48:18,444 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:18,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1847019231, now seen corresponding path program 1 times [2023-11-19 07:48:18,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:18,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799809618] [2023-11-19 07:48:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:18,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:18,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:18,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,692 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-19 07:48:18,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:18,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799809618] [2023-11-19 07:48:18,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799809618] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:18,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258106077] [2023-11-19 07:48:18,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:18,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:18,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:18,695 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:18,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-19 07:48:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:18,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 07:48:18,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2023-11-19 07:48:19,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:19,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258106077] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:19,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:19,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2023-11-19 07:48:19,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850317147] [2023-11-19 07:48:19,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:19,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:48:19,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:19,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:48:19,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:19,019 INFO L87 Difference]: Start difference. First operand 190 states and 233 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:48:19,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:19,148 INFO L93 Difference]: Finished difference Result 314 states and 395 transitions. [2023-11-19 07:48:19,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:19,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 58 [2023-11-19 07:48:19,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:19,152 INFO L225 Difference]: With dead ends: 314 [2023-11-19 07:48:19,152 INFO L226 Difference]: Without dead ends: 304 [2023-11-19 07:48:19,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:48:19,153 INFO L413 NwaCegarLoop]: 209 mSDtfsCounter, 142 mSDsluCounter, 572 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:19,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 781 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:19,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2023-11-19 07:48:19,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 284. [2023-11-19 07:48:19,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 241 states have (on average 1.4481327800829875) internal successors, (349), 264 states have internal predecessors, (349), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:19,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 383 transitions. [2023-11-19 07:48:19,175 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 383 transitions. Word has length 58 [2023-11-19 07:48:19,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:19,176 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 383 transitions. [2023-11-19 07:48:19,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 07:48:19,176 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 383 transitions. [2023-11-19 07:48:19,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:48:19,177 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:19,177 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:19,208 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-19 07:48:19,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:19,401 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:19,401 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:19,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1071045388, now seen corresponding path program 1 times [2023-11-19 07:48:19,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:19,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694006533] [2023-11-19 07:48:19,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:19,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:19,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:19,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:48:19,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:19,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694006533] [2023-11-19 07:48:19,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694006533] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:19,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073492307] [2023-11-19 07:48:19,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:19,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:19,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:19,665 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:19,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-19 07:48:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:19,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:20,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:20,029 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:48:20,029 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-19 07:48:20,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073492307] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:20,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:20,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-19 07:48:20,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261785517] [2023-11-19 07:48:20,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:20,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:20,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:20,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:20,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:20,062 INFO L87 Difference]: Start difference. First operand 284 states and 383 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:20,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:20,110 INFO L93 Difference]: Finished difference Result 448 states and 592 transitions. [2023-11-19 07:48:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:20,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-19 07:48:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:20,114 INFO L225 Difference]: With dead ends: 448 [2023-11-19 07:48:20,114 INFO L226 Difference]: Without dead ends: 302 [2023-11-19 07:48:20,114 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:20,116 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 4 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 556 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:20,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 556 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:20,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2023-11-19 07:48:20,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2023-11-19 07:48:20,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 259 states have (on average 1.416988416988417) internal successors, (367), 282 states have internal predecessors, (367), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:20,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 401 transitions. [2023-11-19 07:48:20,141 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 401 transitions. Word has length 58 [2023-11-19 07:48:20,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:20,141 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 401 transitions. [2023-11-19 07:48:20,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:20,142 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 401 transitions. [2023-11-19 07:48:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-19 07:48:20,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:20,143 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:20,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:20,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-19 07:48:20,344 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:20,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash -1408740579, now seen corresponding path program 1 times [2023-11-19 07:48:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:20,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924441906] [2023-11-19 07:48:20,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:20,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:20,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,635 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-19 07:48:20,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:20,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924441906] [2023-11-19 07:48:20,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924441906] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:20,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:20,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:20,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571782581] [2023-11-19 07:48:20,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:20,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:20,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:20,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:20,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:20,638 INFO L87 Difference]: Start difference. First operand 302 states and 401 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:20,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:20,689 INFO L93 Difference]: Finished difference Result 543 states and 735 transitions. [2023-11-19 07:48:20,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:20,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2023-11-19 07:48:20,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:20,692 INFO L225 Difference]: With dead ends: 543 [2023-11-19 07:48:20,692 INFO L226 Difference]: Without dead ends: 324 [2023-11-19 07:48:20,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:20,694 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 14 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:20,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 572 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:20,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-11-19 07:48:20,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 306. [2023-11-19 07:48:20,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 263 states have (on average 1.4106463878326996) internal successors, (371), 286 states have internal predecessors, (371), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:20,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 405 transitions. [2023-11-19 07:48:20,714 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 405 transitions. Word has length 68 [2023-11-19 07:48:20,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:20,715 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 405 transitions. [2023-11-19 07:48:20,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:20,715 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 405 transitions. [2023-11-19 07:48:20,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 07:48:20,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:20,716 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:20,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-19 07:48:20,717 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:20,717 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:20,717 INFO L85 PathProgramCache]: Analyzing trace with hash -911510442, now seen corresponding path program 1 times [2023-11-19 07:48:20,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:20,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817735717] [2023-11-19 07:48:20,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:20,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:20,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:20,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:20,994 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:21,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:21,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817735717] [2023-11-19 07:48:21,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [817735717] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:21,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:21,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:21,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028459080] [2023-11-19 07:48:21,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:21,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:21,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:21,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:21,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:21,016 INFO L87 Difference]: Start difference. First operand 306 states and 405 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-19 07:48:21,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:21,071 INFO L93 Difference]: Finished difference Result 529 states and 718 transitions. [2023-11-19 07:48:21,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:21,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 74 [2023-11-19 07:48:21,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:21,074 INFO L225 Difference]: With dead ends: 529 [2023-11-19 07:48:21,075 INFO L226 Difference]: Without dead ends: 306 [2023-11-19 07:48:21,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:21,076 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 230 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:21,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 318 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:21,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2023-11-19 07:48:21,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2023-11-19 07:48:21,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 263 states have (on average 1.403041825095057) internal successors, (369), 286 states have internal predecessors, (369), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:21,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 403 transitions. [2023-11-19 07:48:21,097 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 403 transitions. Word has length 74 [2023-11-19 07:48:21,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:21,097 INFO L495 AbstractCegarLoop]: Abstraction has 306 states and 403 transitions. [2023-11-19 07:48:21,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-19 07:48:21,098 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 403 transitions. [2023-11-19 07:48:21,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-19 07:48:21,099 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:21,099 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:21,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-19 07:48:21,099 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:21,100 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:21,100 INFO L85 PathProgramCache]: Analyzing trace with hash -231452072, now seen corresponding path program 1 times [2023-11-19 07:48:21,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:21,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479213145] [2023-11-19 07:48:21,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:21,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:21,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:21,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,527 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:21,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:21,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479213145] [2023-11-19 07:48:21,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479213145] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:21,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:21,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:21,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046404754] [2023-11-19 07:48:21,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:21,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:21,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:21,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:21,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:21,529 INFO L87 Difference]: Start difference. First operand 306 states and 403 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-19 07:48:21,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:21,597 INFO L93 Difference]: Finished difference Result 535 states and 722 transitions. [2023-11-19 07:48:21,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:21,597 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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 74 [2023-11-19 07:48:21,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:21,600 INFO L225 Difference]: With dead ends: 535 [2023-11-19 07:48:21,600 INFO L226 Difference]: Without dead ends: 312 [2023-11-19 07:48:21,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:21,601 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 167 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:21,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 352 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:21,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2023-11-19 07:48:21,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 310. [2023-11-19 07:48:21,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 267 states have (on average 1.3670411985018727) internal successors, (365), 290 states have internal predecessors, (365), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:21,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 399 transitions. [2023-11-19 07:48:21,624 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 399 transitions. Word has length 74 [2023-11-19 07:48:21,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:21,625 INFO L495 AbstractCegarLoop]: Abstraction has 310 states and 399 transitions. [2023-11-19 07:48:21,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 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) [2023-11-19 07:48:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 399 transitions. [2023-11-19 07:48:21,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 07:48:21,626 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:21,626 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:21,626 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-19 07:48:21,627 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:21,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:21,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1890184433, now seen corresponding path program 1 times [2023-11-19 07:48:21,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:21,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512334787] [2023-11-19 07:48:21,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:21,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:21,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:21,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:21,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:21,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512334787] [2023-11-19 07:48:21,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512334787] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:21,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:21,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-19 07:48:21,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428438337] [2023-11-19 07:48:21,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:21,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 07:48:21,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:21,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 07:48:21,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 07:48:21,851 INFO L87 Difference]: Start difference. First operand 310 states and 399 transitions. Second operand has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-19 07:48:21,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:21,894 INFO L93 Difference]: Finished difference Result 326 states and 423 transitions. [2023-11-19 07:48:21,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 07:48:21,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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 75 [2023-11-19 07:48:21,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:21,897 INFO L225 Difference]: With dead ends: 326 [2023-11-19 07:48:21,897 INFO L226 Difference]: Without dead ends: 324 [2023-11-19 07:48:21,897 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 [2023-11-19 07:48:21,898 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 4 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 358 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:21,899 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 358 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:21,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2023-11-19 07:48:21,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 318. [2023-11-19 07:48:21,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 275 states have (on average 1.3709090909090909) internal successors, (377), 298 states have internal predecessors, (377), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:21,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 411 transitions. [2023-11-19 07:48:21,923 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 411 transitions. Word has length 75 [2023-11-19 07:48:21,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:21,923 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 411 transitions. [2023-11-19 07:48:21,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 18.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2023-11-19 07:48:21,924 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 411 transitions. [2023-11-19 07:48:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 07:48:21,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:21,925 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 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] [2023-11-19 07:48:21,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-19 07:48:21,925 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:21,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1055505276, now seen corresponding path program 1 times [2023-11-19 07:48:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:21,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892304416] [2023-11-19 07:48:21,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:21,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-19 07:48:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,209 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 172 trivial. 0 not checked. [2023-11-19 07:48:22,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:22,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892304416] [2023-11-19 07:48:22,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892304416] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:22,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91843201] [2023-11-19 07:48:22,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:22,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:22,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:22,212 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:22,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-19 07:48:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:22,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 561 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 07:48:22,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-19 07:48:22,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:22,791 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-19 07:48:22,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91843201] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:22,791 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:22,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-19 07:48:22,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607180797] [2023-11-19 07:48:22,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:22,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-19 07:48:22,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:22,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-19 07:48:22,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:48:22,794 INFO L87 Difference]: Start difference. First operand 318 states and 411 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:48:22,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:22,914 INFO L93 Difference]: Finished difference Result 516 states and 658 transitions. [2023-11-19 07:48:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-19 07:48:22,914 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 75 [2023-11-19 07:48:22,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:22,918 INFO L225 Difference]: With dead ends: 516 [2023-11-19 07:48:22,918 INFO L226 Difference]: Without dead ends: 353 [2023-11-19 07:48:22,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-19 07:48:22,919 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 6 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:22,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 878 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:22,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2023-11-19 07:48:22,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 353. [2023-11-19 07:48:22,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 353 states, 311 states have (on average 1.32475884244373) internal successors, (412), 333 states have internal predecessors, (412), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 353 states and 446 transitions. [2023-11-19 07:48:22,947 INFO L78 Accepts]: Start accepts. Automaton has 353 states and 446 transitions. Word has length 75 [2023-11-19 07:48:22,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:22,947 INFO L495 AbstractCegarLoop]: Abstraction has 353 states and 446 transitions. [2023-11-19 07:48:22,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 14 states have internal predecessors, (75), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-19 07:48:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 446 transitions. [2023-11-19 07:48:22,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-19 07:48:22,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:22,949 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:22,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:23,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-19 07:48:23,172 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:23,172 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:23,172 INFO L85 PathProgramCache]: Analyzing trace with hash -345905976, now seen corresponding path program 1 times [2023-11-19 07:48:23,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:23,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965352117] [2023-11-19 07:48:23,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:23,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:23,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,420 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:23,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:23,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965352117] [2023-11-19 07:48:23,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965352117] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:23,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:23,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:48:23,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747620840] [2023-11-19 07:48:23,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:23,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:23,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:23,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:23,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:23,423 INFO L87 Difference]: Start difference. First operand 353 states and 446 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-11-19 07:48:23,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:23,531 INFO L93 Difference]: Finished difference Result 640 states and 828 transitions. [2023-11-19 07:48:23,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-19 07:48:23,531 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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 77 [2023-11-19 07:48:23,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:23,535 INFO L225 Difference]: With dead ends: 640 [2023-11-19 07:48:23,535 INFO L226 Difference]: Without dead ends: 406 [2023-11-19 07:48:23,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:23,537 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 28 mSDsluCounter, 356 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 564 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:23,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 564 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:23,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2023-11-19 07:48:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 357. [2023-11-19 07:48:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 315 states have (on average 1.3206349206349206) internal successors, (416), 337 states have internal predecessors, (416), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 450 transitions. [2023-11-19 07:48:23,569 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 450 transitions. Word has length 77 [2023-11-19 07:48:23,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:23,569 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 450 transitions. [2023-11-19 07:48:23,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 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) [2023-11-19 07:48:23,570 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 450 transitions. [2023-11-19 07:48:23,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-19 07:48:23,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:23,571 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2023-11-19 07:48:23,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-19 07:48:23,572 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:23,572 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:23,572 INFO L85 PathProgramCache]: Analyzing trace with hash -8899222, now seen corresponding path program 1 times [2023-11-19 07:48:23,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:23,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485691642] [2023-11-19 07:48:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:23,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:23,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:23,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:23,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485691642] [2023-11-19 07:48:23,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485691642] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:23,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632623205] [2023-11-19 07:48:23,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:23,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:23,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:23,847 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:23,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-19 07:48:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:24,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:24,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:24,293 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:24,293 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:24,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632623205] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:24,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:24,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:48:24,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440940816] [2023-11-19 07:48:24,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:24,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:24,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:24,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:24,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:24,295 INFO L87 Difference]: Start difference. First operand 357 states and 450 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-19 07:48:24,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:24,344 INFO L93 Difference]: Finished difference Result 365 states and 460 transitions. [2023-11-19 07:48:24,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:24,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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 79 [2023-11-19 07:48:24,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:24,347 INFO L225 Difference]: With dead ends: 365 [2023-11-19 07:48:24,347 INFO L226 Difference]: Without dead ends: 364 [2023-11-19 07:48:24,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:24,348 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 9 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:24,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 359 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:24,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2023-11-19 07:48:24,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 356. [2023-11-19 07:48:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 315 states have (on average 1.3142857142857143) internal successors, (414), 336 states have internal predecessors, (414), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 448 transitions. [2023-11-19 07:48:24,373 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 448 transitions. Word has length 79 [2023-11-19 07:48:24,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:24,374 INFO L495 AbstractCegarLoop]: Abstraction has 356 states and 448 transitions. [2023-11-19 07:48:24,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 4 states have internal predecessors, (40), 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) [2023-11-19 07:48:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 448 transitions. [2023-11-19 07:48:24,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-11-19 07:48:24,375 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:24,376 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 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, 1] [2023-11-19 07:48:24,402 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:24,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:24,592 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:24,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:24,593 INFO L85 PathProgramCache]: Analyzing trace with hash -275875677, now seen corresponding path program 1 times [2023-11-19 07:48:24,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:24,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121279706] [2023-11-19 07:48:24,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:24,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:24,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:24,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:24,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:24,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:24,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:24,885 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:24,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:24,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121279706] [2023-11-19 07:48:24,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121279706] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:24,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495899318] [2023-11-19 07:48:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:24,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:24,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:24,887 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:24,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-19 07:48:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:25,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:25,331 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:25,353 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:25,354 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:25,387 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:25,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495899318] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:25,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:25,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:48:25,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825621298] [2023-11-19 07:48:25,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:25,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:25,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:25,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:25,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:25,390 INFO L87 Difference]: Start difference. First operand 356 states and 448 transitions. Second operand has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (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) [2023-11-19 07:48:25,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:25,473 INFO L93 Difference]: Finished difference Result 405 states and 522 transitions. [2023-11-19 07:48:25,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:25,474 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (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 80 [2023-11-19 07:48:25,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:25,477 INFO L225 Difference]: With dead ends: 405 [2023-11-19 07:48:25,478 INFO L226 Difference]: Without dead ends: 404 [2023-11-19 07:48:25,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:25,481 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 15 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:25,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 710 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:25,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2023-11-19 07:48:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 380. [2023-11-19 07:48:25,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 339 states have (on average 1.3274336283185841) internal successors, (450), 360 states have internal predecessors, (450), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:25,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 484 transitions. [2023-11-19 07:48:25,514 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 484 transitions. Word has length 80 [2023-11-19 07:48:25,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:25,514 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 484 transitions. [2023-11-19 07:48:25,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.166666666666666) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (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) [2023-11-19 07:48:25,515 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 484 transitions. [2023-11-19 07:48:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-19 07:48:25,518 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:25,519 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:25,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:25,740 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:25,741 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:25,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:25,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1075773607, now seen corresponding path program 1 times [2023-11-19 07:48:25,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:25,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349508158] [2023-11-19 07:48:25,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:25,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:25,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:26,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:26,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:26,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:26,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:26,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:48:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:26,189 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-19 07:48:26,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:26,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349508158] [2023-11-19 07:48:26,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349508158] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:26,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:48:26,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 07:48:26,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124509755] [2023-11-19 07:48:26,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:26,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:26,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:26,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:26,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:26,192 INFO L87 Difference]: Start difference. First operand 380 states and 484 transitions. Second operand has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:48:26,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:26,386 INFO L93 Difference]: Finished difference Result 381 states and 485 transitions. [2023-11-19 07:48:26,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:26,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 82 [2023-11-19 07:48:26,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:26,390 INFO L225 Difference]: With dead ends: 381 [2023-11-19 07:48:26,391 INFO L226 Difference]: Without dead ends: 379 [2023-11-19 07:48:26,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:48:26,391 INFO L413 NwaCegarLoop]: 166 mSDtfsCounter, 23 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:26,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 406 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:48:26,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2023-11-19 07:48:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 378. [2023-11-19 07:48:26,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 339 states have (on average 1.3156342182890854) internal successors, (446), 358 states have internal predecessors, (446), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2023-11-19 07:48:26,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 480 transitions. [2023-11-19 07:48:26,419 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 480 transitions. Word has length 82 [2023-11-19 07:48:26,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:26,420 INFO L495 AbstractCegarLoop]: Abstraction has 378 states and 480 transitions. [2023-11-19 07:48:26,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-19 07:48:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 480 transitions. [2023-11-19 07:48:26,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-11-19 07:48:26,421 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:26,422 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:26,422 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-19 07:48:26,422 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:26,422 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:26,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1010756323, now seen corresponding path program 1 times [2023-11-19 07:48:26,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:26,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981258720] [2023-11-19 07:48:26,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:26,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:26,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:27,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2023-11-19 07:48:27,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:27,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:48:27,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2023-11-19 07:48:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2023-11-19 07:48:27,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:27,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981258720] [2023-11-19 07:48:27,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981258720] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:27,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1802104393] [2023-11-19 07:48:27,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:27,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:27,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:27,073 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:27,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-19 07:48:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:27,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 07:48:27,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:27,607 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-19 07:48:27,607 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:27,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1802104393] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:27,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:27,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 10 [2023-11-19 07:48:27,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551301632] [2023-11-19 07:48:27,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:27,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:27,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:27,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:27,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-19 07:48:27,610 INFO L87 Difference]: Start difference. First operand 378 states and 480 transitions. Second operand has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:48:27,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:27,764 INFO L93 Difference]: Finished difference Result 404 states and 488 transitions. [2023-11-19 07:48:27,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:48:27,765 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 83 [2023-11-19 07:48:27,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:27,767 INFO L225 Difference]: With dead ends: 404 [2023-11-19 07:48:27,767 INFO L226 Difference]: Without dead ends: 262 [2023-11-19 07:48:27,767 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-11-19 07:48:27,768 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 11 mSDsluCounter, 824 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 994 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:27,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 994 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-19 07:48:27,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2023-11-19 07:48:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 231 states have (on average 1.251082251082251) internal successors, (289), 250 states have internal predecessors, (289), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:27,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 307 transitions. [2023-11-19 07:48:27,791 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 307 transitions. Word has length 83 [2023-11-19 07:48:27,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:27,791 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 307 transitions. [2023-11-19 07:48:27,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.0) internal successors, (48), 7 states have internal predecessors, (48), 3 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:48:27,792 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 307 transitions. [2023-11-19 07:48:27,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-11-19 07:48:27,793 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:27,793 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:27,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:28,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-19 07:48:28,017 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:28,017 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:28,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1255325982, now seen corresponding path program 1 times [2023-11-19 07:48:28,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:28,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104676145] [2023-11-19 07:48:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:28,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:28,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:28,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:48:28,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:28,276 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-19 07:48:28,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:28,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104676145] [2023-11-19 07:48:28,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104676145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:28,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026509489] [2023-11-19 07:48:28,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:28,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:28,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:28,278 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:28,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-19 07:48:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:28,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:28,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-19 07:48:28,794 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:28,833 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2023-11-19 07:48:28,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026509489] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:28,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:28,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:48:28,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345639953] [2023-11-19 07:48:28,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:28,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:28,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:28,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:28,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:28,837 INFO L87 Difference]: Start difference. First operand 262 states and 307 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:28,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:28,917 INFO L93 Difference]: Finished difference Result 272 states and 319 transitions. [2023-11-19 07:48:28,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:28,917 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 94 [2023-11-19 07:48:28,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:28,919 INFO L225 Difference]: With dead ends: 272 [2023-11-19 07:48:28,919 INFO L226 Difference]: Without dead ends: 271 [2023-11-19 07:48:28,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:28,921 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:28,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 531 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:28,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-19 07:48:28,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2023-11-19 07:48:28,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 240 states have (on average 1.2416666666666667) internal successors, (298), 259 states have internal predecessors, (298), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:28,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 316 transitions. [2023-11-19 07:48:28,941 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 316 transitions. Word has length 94 [2023-11-19 07:48:28,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:28,941 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 316 transitions. [2023-11-19 07:48:28,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 07:48:28,942 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 316 transitions. [2023-11-19 07:48:28,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-19 07:48:28,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:28,943 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 4, 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] [2023-11-19 07:48:28,969 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:29,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-19 07:48:29,169 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:29,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:29,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1133775905, now seen corresponding path program 2 times [2023-11-19 07:48:29,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:29,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820009736] [2023-11-19 07:48:29,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:29,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:29,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:29,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:29,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:48:29,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-11-19 07:48:29,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:29,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820009736] [2023-11-19 07:48:29,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820009736] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:29,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876999961] [2023-11-19 07:48:29,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:48:29,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:29,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:29,596 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:29,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-19 07:48:30,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-19 07:48:30,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:48:30,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:30,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:30,143 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-11-19 07:48:30,144 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:30,252 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2023-11-19 07:48:30,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876999961] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:30,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:30,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-19 07:48:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49144378] [2023-11-19 07:48:30,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:30,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:48:30,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:30,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:48:30,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:48:30,255 INFO L87 Difference]: Start difference. First operand 271 states and 316 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:48:30,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:30,326 INFO L93 Difference]: Finished difference Result 271 states and 316 transitions. [2023-11-19 07:48:30,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:30,326 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 103 [2023-11-19 07:48:30,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:30,328 INFO L225 Difference]: With dead ends: 271 [2023-11-19 07:48:30,328 INFO L226 Difference]: Without dead ends: 253 [2023-11-19 07:48:30,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-19 07:48:30,332 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 128 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:30,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 553 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-19 07:48:30,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2023-11-19 07:48:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 253. [2023-11-19 07:48:30,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 223 states have (on average 1.2466367713004485) internal successors, (278), 241 states have internal predecessors, (278), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:30,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 296 transitions. [2023-11-19 07:48:30,360 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 296 transitions. Word has length 103 [2023-11-19 07:48:30,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:30,360 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 296 transitions. [2023-11-19 07:48:30,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-19 07:48:30,361 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 296 transitions. [2023-11-19 07:48:30,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2023-11-19 07:48:30,384 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:30,385 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:30,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:30,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-19 07:48:30,608 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:30,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:30,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1315888346, now seen corresponding path program 2 times [2023-11-19 07:48:30,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:30,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704014278] [2023-11-19 07:48:30,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:30,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:30,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:31,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:31,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:31,095 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 0 proven. 324 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:48:31,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:31,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704014278] [2023-11-19 07:48:31,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704014278] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:31,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201395178] [2023-11-19 07:48:31,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-19 07:48:31,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:31,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:31,097 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:31,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-19 07:48:31,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-19 07:48:31,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-19 07:48:31,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 854 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:31,794 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:31,895 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 324 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:48:31,895 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-19 07:48:31,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201395178] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:48:31,896 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-19 07:48:31,896 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-19 07:48:31,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779481594] [2023-11-19 07:48:31,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:48:31,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:48:31,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:31,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:48:31,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:31,898 INFO L87 Difference]: Start difference. First operand 253 states and 296 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:31,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:31,976 INFO L93 Difference]: Finished difference Result 253 states and 296 transitions. [2023-11-19 07:48:31,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:48:31,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 112 [2023-11-19 07:48:31,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:31,979 INFO L225 Difference]: With dead ends: 253 [2023-11-19 07:48:31,979 INFO L226 Difference]: Without dead ends: 252 [2023-11-19 07:48:31,979 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:48:31,980 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 5 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:31,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 335 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:31,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2023-11-19 07:48:31,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2023-11-19 07:48:31,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 223 states have (on average 1.242152466367713) internal successors, (277), 240 states have internal predecessors, (277), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:31,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 295 transitions. [2023-11-19 07:48:31,999 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 295 transitions. Word has length 112 [2023-11-19 07:48:31,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:31,999 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 295 transitions. [2023-11-19 07:48:31,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:32,000 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 295 transitions. [2023-11-19 07:48:32,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2023-11-19 07:48:32,001 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:32,002 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:32,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:32,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-19 07:48:32,222 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:32,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:32,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2137833172, now seen corresponding path program 1 times [2023-11-19 07:48:32,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:32,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541795848] [2023-11-19 07:48:32,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:32,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:32,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:32,689 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:48:32,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:32,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541795848] [2023-11-19 07:48:32,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541795848] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:32,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546873497] [2023-11-19 07:48:32,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:32,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:32,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:32,692 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:32,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-19 07:48:33,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:33,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 07:48:33,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:33,434 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:48:33,435 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:33,551 INFO L134 CoverageAnalysis]: Checked inductivity of 760 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-11-19 07:48:33,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546873497] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:33,552 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:33,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-19 07:48:33,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403847562] [2023-11-19 07:48:33,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:33,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 07:48:33,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:33,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 07:48:33,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:33,555 INFO L87 Difference]: Start difference. First operand 252 states and 295 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:33,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:33,644 INFO L93 Difference]: Finished difference Result 361 states and 412 transitions. [2023-11-19 07:48:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:48:33,645 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2023-11-19 07:48:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:33,647 INFO L225 Difference]: With dead ends: 361 [2023-11-19 07:48:33,647 INFO L226 Difference]: Without dead ends: 360 [2023-11-19 07:48:33,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-19 07:48:33,648 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 4 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:33,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 504 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-19 07:48:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2023-11-19 07:48:33,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 357. [2023-11-19 07:48:33,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 328 states have (on average 1.1829268292682926) internal successors, (388), 345 states have internal predecessors, (388), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:33,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 406 transitions. [2023-11-19 07:48:33,683 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 406 transitions. Word has length 113 [2023-11-19 07:48:33,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:33,684 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 406 transitions. [2023-11-19 07:48:33,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-19 07:48:33,684 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 406 transitions. [2023-11-19 07:48:33,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2023-11-19 07:48:33,686 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:33,686 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:33,713 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:33,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-11-19 07:48:33,914 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:33,914 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:33,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1382826074, now seen corresponding path program 1 times [2023-11-19 07:48:33,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:33,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865188855] [2023-11-19 07:48:33,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:33,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:34,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-19 07:48:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2023-11-19 07:48:34,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:34,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-11-19 07:48:34,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:34,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-19 07:48:34,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:34,935 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-19 07:48:34,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:48:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865188855] [2023-11-19 07:48:34,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865188855] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-19 07:48:34,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1518597272] [2023-11-19 07:48:34,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:34,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-19 07:48:34,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:48:34,937 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-19 07:48:34,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-19 07:48:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:48:35,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 07:48:35,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 07:48:35,705 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-19 07:48:35,705 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-19 07:48:35,878 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-19 07:48:35,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1518597272] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-19 07:48:35,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-19 07:48:35,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 11 [2023-11-19 07:48:35,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488653735] [2023-11-19 07:48:35,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-19 07:48:35,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-19 07:48:35,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:48:35,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-19 07:48:35,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-11-19 07:48:35,881 INFO L87 Difference]: Start difference. First operand 357 states and 406 transitions. Second operand has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:48:36,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:48:36,195 INFO L93 Difference]: Finished difference Result 500 states and 587 transitions. [2023-11-19 07:48:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:48:36,196 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 118 [2023-11-19 07:48:36,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:48:36,198 INFO L225 Difference]: With dead ends: 500 [2023-11-19 07:48:36,198 INFO L226 Difference]: Without dead ends: 358 [2023-11-19 07:48:36,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 236 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2023-11-19 07:48:36,200 INFO L413 NwaCegarLoop]: 158 mSDtfsCounter, 15 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:48:36,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1352 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-19 07:48:36,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-11-19 07:48:36,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 357. [2023-11-19 07:48:36,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 328 states have (on average 1.1798780487804879) internal successors, (387), 345 states have internal predecessors, (387), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-19 07:48:36,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 405 transitions. [2023-11-19 07:48:36,226 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 405 transitions. Word has length 118 [2023-11-19 07:48:36,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:48:36,227 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 405 transitions. [2023-11-19 07:48:36,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 7.2) internal successors, (72), 10 states have internal predecessors, (72), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2023-11-19 07:48:36,227 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 405 transitions. [2023-11-19 07:48:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2023-11-19 07:48:36,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:48:36,230 INFO L195 NwaCegarLoop]: trace histogram [20, 20, 20, 10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:48:36,258 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-11-19 07:48:36,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98078845-2096-40cf-8574-07ac2406aacd/bin/uautomizer-verify-uCwYo4JHxu/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-19 07:48:36,449 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 29 more)] === [2023-11-19 07:48:36,450 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:48:36,450 INFO L85 PathProgramCache]: Analyzing trace with hash -43408387, now seen corresponding path program 2 times [2023-11-19 07:48:36,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:48:36,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410722706] [2023-11-19 07:48:36,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:48:36,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:48:40,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat