./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/tee-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e7bb482b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/tee-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 63da5cc22f5a009319953c5785e163b443547f48da0154edcbca3710248611c6 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:58:02,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:58:02,303 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-06 21:58:02,308 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:58:02,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:58:02,335 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:58:02,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:58:02,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:58:02,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 21:58:02,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 21:58:02,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:58:02,340 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:58:02,340 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:58:02,341 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:58:02,341 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 21:58:02,342 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:58:02,342 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:58:02,343 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 21:58:02,343 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 21:58:02,344 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 21:58:02,344 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-06 21:58:02,352 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:58:02,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:58:02,353 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:58:02,353 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:58:02,353 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:58:02,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 21:58:02,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:02,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:58:02,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 21:58:02,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 21:58:02,356 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:58:02,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 21:58:02,356 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 21:58:02,357 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 21:58:02,357 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 21:58:02,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 21:58:02,357 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 21:58:02,357 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_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63da5cc22f5a009319953c5785e163b443547f48da0154edcbca3710248611c6 [2023-11-06 21:58:02,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:58:02,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:58:02,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:58:02,693 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:58:02,694 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:58:02,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/busybox-1.22.0/tee-1.i [2023-11-06 21:58:05,792 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:58:06,321 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:58:06,322 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/sv-benchmarks/c/busybox-1.22.0/tee-1.i [2023-11-06 21:58:06,383 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/data/62529fe02/4d7aea7ad79d433696bd3b9495f03685/FLAGdbf57ff00 [2023-11-06 21:58:06,441 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/data/62529fe02/4d7aea7ad79d433696bd3b9495f03685 [2023-11-06 21:58:06,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:58:06,471 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:58:06,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:06,474 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:58:06,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:58:06,482 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:06" (1/1) ... [2023-11-06 21:58:06,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a13763 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:06, skipping insertion in model container [2023-11-06 21:58:06,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:58:06" (1/1) ... [2023-11-06 21:58:06,585 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:58:07,968 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:08,010 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:58:08,189 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:58:08,406 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,406 WARN L672 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,406 WARN L672 CHandler]: The function fopen is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,407 WARN L672 CHandler]: The function ferror is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,407 WARN L672 CHandler]: The function setbuf is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,407 WARN L672 CHandler]: The function strtoul is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,407 WARN L672 CHandler]: The function longjmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,408 WARN L672 CHandler]: The function fwrite is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 21:58:08,416 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:58:08,417 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08 WrapperNode [2023-11-06 21:58:08,417 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:58:08,418 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:08,418 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:58:08,419 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:58:08,427 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,632 INFO L138 Inliner]: procedures = 575, calls = 416, calls flagged for inlining = 28, calls inlined = 26, statements flattened = 1725 [2023-11-06 21:58:08,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:58:08,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:58:08,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:58:08,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:58:08,648 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,648 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,679 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,691 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,748 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,763 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,803 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:58:08,804 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:58:08,804 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:58:08,805 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:58:08,805 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (1/1) ... [2023-11-06 21:58:08,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 21:58:08,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:08,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 21:58:08,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 21:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-11-06 21:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure setbuf [2023-11-06 21:58:08,914 INFO L130 BoogieDeclarations]: Found specification of procedure xzalloc [2023-11-06 21:58:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure xzalloc [2023-11-06 21:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 21:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure bb_verror_msg [2023-11-06 21:58:08,915 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_verror_msg [2023-11-06 21:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 21:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 21:58:08,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:58:08,916 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-06 21:58:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:58:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:58:08,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:58:08,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:58:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 21:58:08,921 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 21:58:08,921 INFO L130 BoogieDeclarations]: Found specification of procedure xmalloc [2023-11-06 21:58:08,922 INFO L138 BoogieDeclarations]: Found implementation of procedure xmalloc [2023-11-06 21:58:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 21:58:08,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 21:58:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2023-11-06 21:58:08,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 21:58:08,924 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 21:58:08,925 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-06 21:58:08,925 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-06 21:58:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 21:58:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:58:08,927 INFO L130 BoogieDeclarations]: Found specification of procedure ferror [2023-11-06 21:58:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:58:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:58:08,928 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2023-11-06 21:58:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-06 21:58:08,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-06 21:58:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure fwrite [2023-11-06 21:58:08,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:58:09,434 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:58:09,436 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:58:11,161 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:58:11,175 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:58:11,176 INFO L302 CfgBuilder]: Removed 29 assume(true) statements. [2023-11-06 21:58:11,179 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:11 BoogieIcfgContainer [2023-11-06 21:58:11,179 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:58:11,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 21:58:11,181 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 21:58:11,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 21:58:11,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:58:06" (1/3) ... [2023-11-06 21:58:11,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440f5270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:11, skipping insertion in model container [2023-11-06 21:58:11,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:58:08" (2/3) ... [2023-11-06 21:58:11,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440f5270 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:58:11, skipping insertion in model container [2023-11-06 21:58:11,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:58:11" (3/3) ... [2023-11-06 21:58:11,188 INFO L112 eAbstractionObserver]: Analyzing ICFG tee-1.i [2023-11-06 21:58:11,206 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 21:58:11,207 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 72 error locations. [2023-11-06 21:58:11,271 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 21:58:11,278 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4e428732, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 21:58:11,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2023-11-06 21:58:11,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 523 states, 419 states have (on average 1.692124105011933) internal successors, (709), 491 states have internal predecessors, (709), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2023-11-06 21:58:11,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-06 21:58:11,292 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:11,292 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-06 21:58:11,293 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:11,298 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash 9822341, now seen corresponding path program 1 times [2023-11-06 21:58:11,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:11,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69001056] [2023-11-06 21:58:11,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:11,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:11,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:11,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:11,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69001056] [2023-11-06 21:58:11,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69001056] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:11,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:11,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:11,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135902092] [2023-11-06 21:58:11,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:11,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:11,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:11,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:11,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:11,930 INFO L87 Difference]: Start difference. First operand has 523 states, 419 states have (on average 1.692124105011933) internal successors, (709), 491 states have internal predecessors, (709), 24 states have call successors, (24), 7 states have call predecessors, (24), 7 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:12,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:12,143 INFO L93 Difference]: Finished difference Result 1037 states and 1522 transitions. [2023-11-06 21:58:12,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:12,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-06 21:58:12,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:12,165 INFO L225 Difference]: With dead ends: 1037 [2023-11-06 21:58:12,166 INFO L226 Difference]: Without dead ends: 514 [2023-11-06 21:58:12,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:12,186 INFO L413 NwaCegarLoop]: 703 mSDtfsCounter, 1 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:12,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1400 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:12,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2023-11-06 21:58:12,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2023-11-06 21:58:12,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 514 states, 412 states have (on average 1.6067961165048543) internal successors, (662), 488 states have internal predecessors, (662), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:12,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 704 transitions. [2023-11-06 21:58:12,316 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 704 transitions. Word has length 4 [2023-11-06 21:58:12,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:12,317 INFO L495 AbstractCegarLoop]: Abstraction has 514 states and 704 transitions. [2023-11-06 21:58:12,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 704 transitions. [2023-11-06 21:58:12,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-06 21:58:12,318 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:12,319 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-06 21:58:12,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 21:58:12,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:12,320 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:12,321 INFO L85 PathProgramCache]: Analyzing trace with hash 559916108, now seen corresponding path program 1 times [2023-11-06 21:58:12,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:12,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067514286] [2023-11-06 21:58:12,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:12,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:12,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:12,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:12,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067514286] [2023-11-06 21:58:12,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067514286] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:12,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55786938] [2023-11-06 21:58:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:12,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:12,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:12,572 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:12,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-06 21:58:12,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:12,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:58:12,999 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:13,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:13,044 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:13,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55786938] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:13,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:58:13,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 21:58:13,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981032621] [2023-11-06 21:58:13,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:13,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:13,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:13,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:13,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:13,048 INFO L87 Difference]: Start difference. First operand 514 states and 704 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:13,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:13,097 INFO L93 Difference]: Finished difference Result 514 states and 704 transitions. [2023-11-06 21:58:13,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:13,098 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-06 21:58:13,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:13,102 INFO L225 Difference]: With dead ends: 514 [2023-11-06 21:58:13,102 INFO L226 Difference]: Without dead ends: 513 [2023-11-06 21:58:13,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:13,104 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 5 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1388 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:13,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1388 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:13,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 513 states. [2023-11-06 21:58:13,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 513 to 513. [2023-11-06 21:58:13,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 513 states, 412 states have (on average 1.604368932038835) internal successors, (661), 487 states have internal predecessors, (661), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:13,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 513 states and 703 transitions. [2023-11-06 21:58:13,132 INFO L78 Accepts]: Start accepts. Automaton has 513 states and 703 transitions. Word has length 7 [2023-11-06 21:58:13,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:13,132 INFO L495 AbstractCegarLoop]: Abstraction has 513 states and 703 transitions. [2023-11-06 21:58:13,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:13,133 INFO L276 IsEmpty]: Start isEmpty. Operand 513 states and 703 transitions. [2023-11-06 21:58:13,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-06 21:58:13,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:13,133 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-06 21:58:13,144 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:13,341 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:13,341 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:13,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:13,342 INFO L85 PathProgramCache]: Analyzing trace with hash 177530498, now seen corresponding path program 1 times [2023-11-06 21:58:13,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:13,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661692175] [2023-11-06 21:58:13,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:13,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:13,461 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:58:13,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:13,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661692175] [2023-11-06 21:58:13,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661692175] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:13,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:13,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:13,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360514129] [2023-11-06 21:58:13,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:13,463 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:13,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:13,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:13,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:13,464 INFO L87 Difference]: Start difference. First operand 513 states and 703 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:13,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:13,498 INFO L93 Difference]: Finished difference Result 513 states and 703 transitions. [2023-11-06 21:58:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:13,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-06 21:58:13,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:13,503 INFO L225 Difference]: With dead ends: 513 [2023-11-06 21:58:13,503 INFO L226 Difference]: Without dead ends: 512 [2023-11-06 21:58:13,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:13,505 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 0 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1389 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:13,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1389 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:13,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2023-11-06 21:58:13,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 510. [2023-11-06 21:58:13,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 410 states have (on average 1.604878048780488) internal successors, (658), 484 states have internal predecessors, (658), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:13,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 700 transitions. [2023-11-06 21:58:13,556 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 700 transitions. Word has length 8 [2023-11-06 21:58:13,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:13,556 INFO L495 AbstractCegarLoop]: Abstraction has 510 states and 700 transitions. [2023-11-06 21:58:13,557 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-06 21:58:13,557 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 700 transitions. [2023-11-06 21:58:13,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 21:58:13,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:13,557 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:13,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-06 21:58:13,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:13,559 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:13,559 INFO L85 PathProgramCache]: Analyzing trace with hash -306919155, now seen corresponding path program 1 times [2023-11-06 21:58:13,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:13,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56227235] [2023-11-06 21:58:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:13,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:13,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 21:58:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:13,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:13,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:13,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56227235] [2023-11-06 21:58:13,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56227235] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:13,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715404908] [2023-11-06 21:58:13,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:13,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:13,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:13,781 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:13,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-06 21:58:14,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:14,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-06 21:58:14,089 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:14,104 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-06 21:58:14,105 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:14,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715404908] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:14,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:58:14,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-06 21:58:14,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126178498] [2023-11-06 21:58:14,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:14,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:14,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:14,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:14,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:14,109 INFO L87 Difference]: Start difference. First operand 510 states and 700 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:14,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:14,163 INFO L93 Difference]: Finished difference Result 510 states and 700 transitions. [2023-11-06 21:58:14,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:14,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-06 21:58:14,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:14,168 INFO L225 Difference]: With dead ends: 510 [2023-11-06 21:58:14,168 INFO L226 Difference]: Without dead ends: 508 [2023-11-06 21:58:14,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:14,170 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 500 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 871 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:14,172 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 871 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:14,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2023-11-06 21:58:14,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 508. [2023-11-06 21:58:14,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 410 states have (on average 1.6) internal successors, (656), 482 states have internal predecessors, (656), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 698 transitions. [2023-11-06 21:58:14,201 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 698 transitions. Word has length 13 [2023-11-06 21:58:14,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:14,203 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 698 transitions. [2023-11-06 21:58:14,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:14,203 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 698 transitions. [2023-11-06 21:58:14,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 21:58:14,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:14,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:14,215 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:14,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:14,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:14,411 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:14,411 INFO L85 PathProgramCache]: Analyzing trace with hash -924558870, now seen corresponding path program 1 times [2023-11-06 21:58:14,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:14,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377834276] [2023-11-06 21:58:14,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:14,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:14,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-06 21:58:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:14,612 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:14,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:14,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377834276] [2023-11-06 21:58:14,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377834276] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:14,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051863448] [2023-11-06 21:58:14,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:14,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:14,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:14,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:14,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-06 21:58:14,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:14,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:58:14,909 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:14,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:14,925 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:14,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:14,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051863448] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:14,959 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:14,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 21:58:14,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494135856] [2023-11-06 21:58:14,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:14,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:58:14,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:14,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:58:14,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:14,962 INFO L87 Difference]: Start difference. First operand 508 states and 698 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:15,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:15,043 INFO L93 Difference]: Finished difference Result 1019 states and 1401 transitions. [2023-11-06 21:58:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:15,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-06 21:58:15,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:15,048 INFO L225 Difference]: With dead ends: 1019 [2023-11-06 21:58:15,048 INFO L226 Difference]: Without dead ends: 517 [2023-11-06 21:58:15,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:15,051 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 4 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:15,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2076 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:15,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2023-11-06 21:58:15,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 517. [2023-11-06 21:58:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 517 states, 419 states have (on average 1.5871121718377088) internal successors, (665), 491 states have internal predecessors, (665), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 517 states and 707 transitions. [2023-11-06 21:58:15,077 INFO L78 Accepts]: Start accepts. Automaton has 517 states and 707 transitions. Word has length 14 [2023-11-06 21:58:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:15,077 INFO L495 AbstractCegarLoop]: Abstraction has 517 states and 707 transitions. [2023-11-06 21:58:15,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:15,078 INFO L276 IsEmpty]: Start isEmpty. Operand 517 states and 707 transitions. [2023-11-06 21:58:15,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-06 21:58:15,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:15,079 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:15,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:15,295 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:15,295 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:15,296 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1830780497, now seen corresponding path program 2 times [2023-11-06 21:58:15,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:15,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471970291] [2023-11-06 21:58:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:15,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:15,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 21:58:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:15,590 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:58:15,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:15,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471970291] [2023-11-06 21:58:15,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471970291] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:15,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212356845] [2023-11-06 21:58:15,591 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:58:15,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:15,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:15,596 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:15,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-06 21:58:15,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:58:15,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:15,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:58:15,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:15,951 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 21:58:15,951 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:15,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212356845] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:15,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:58:15,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-06 21:58:15,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138252453] [2023-11-06 21:58:15,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:15,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:15,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:15,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:15,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-06 21:58:15,955 INFO L87 Difference]: Start difference. First operand 517 states and 707 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:16,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:16,090 INFO L93 Difference]: Finished difference Result 517 states and 707 transitions. [2023-11-06 21:58:16,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:58:16,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23 [2023-11-06 21:58:16,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:16,095 INFO L225 Difference]: With dead ends: 517 [2023-11-06 21:58:16,095 INFO L226 Difference]: Without dead ends: 515 [2023-11-06 21:58:16,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:58:16,097 INFO L413 NwaCegarLoop]: 680 mSDtfsCounter, 499 mSDsluCounter, 1525 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:16,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 2205 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:16,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-11-06 21:58:16,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2023-11-06 21:58:16,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 419 states have (on average 1.5823389021479715) internal successors, (663), 489 states have internal predecessors, (663), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:16,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 705 transitions. [2023-11-06 21:58:16,126 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 705 transitions. Word has length 23 [2023-11-06 21:58:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:16,127 INFO L495 AbstractCegarLoop]: Abstraction has 515 states and 705 transitions. [2023-11-06 21:58:16,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 705 transitions. [2023-11-06 21:58:16,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-06 21:58:16,128 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:16,128 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:16,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:16,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:16,335 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:16,336 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:16,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1900505101, now seen corresponding path program 1 times [2023-11-06 21:58:16,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:16,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146747883] [2023-11-06 21:58:16,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:16,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 21:58:16,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:16,540 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 21:58:16,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:16,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146747883] [2023-11-06 21:58:16,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146747883] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:16,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:16,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:16,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778751856] [2023-11-06 21:58:16,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:16,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:16,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:16,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:16,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:16,542 INFO L87 Difference]: Start difference. First operand 515 states and 705 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:16,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:16,616 INFO L93 Difference]: Finished difference Result 1012 states and 1393 transitions. [2023-11-06 21:58:16,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:16,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2023-11-06 21:58:16,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:16,621 INFO L225 Difference]: With dead ends: 1012 [2023-11-06 21:58:16,622 INFO L226 Difference]: Without dead ends: 518 [2023-11-06 21:58:16,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:16,624 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1378 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:16,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1378 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:16,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2023-11-06 21:58:16,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 518. [2023-11-06 21:58:16,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 422 states have (on average 1.5781990521327014) internal successors, (666), 492 states have internal predecessors, (666), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:16,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 708 transitions. [2023-11-06 21:58:16,658 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 708 transitions. Word has length 28 [2023-11-06 21:58:16,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:16,659 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 708 transitions. [2023-11-06 21:58:16,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:16,660 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 708 transitions. [2023-11-06 21:58:16,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-06 21:58:16,661 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:16,661 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:16,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-06 21:58:16,661 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:16,662 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:16,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1025581323, now seen corresponding path program 1 times [2023-11-06 21:58:16,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:16,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896381009] [2023-11-06 21:58:16,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:16,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:16,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:16,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 21:58:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:16,855 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 21:58:16,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:16,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896381009] [2023-11-06 21:58:16,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1896381009] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:16,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:16,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:16,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936465376] [2023-11-06 21:58:16,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:16,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:16,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:16,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:16,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:16,858 INFO L87 Difference]: Start difference. First operand 518 states and 708 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:16,929 INFO L93 Difference]: Finished difference Result 801 states and 1128 transitions. [2023-11-06 21:58:16,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:16,930 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (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 30 [2023-11-06 21:58:16,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:16,935 INFO L225 Difference]: With dead ends: 801 [2023-11-06 21:58:16,935 INFO L226 Difference]: Without dead ends: 799 [2023-11-06 21:58:16,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:16,937 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 398 mSDsluCounter, 679 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 404 SdHoareTripleChecker+Valid, 1366 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:16,937 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [404 Valid, 1366 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:16,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2023-11-06 21:58:16,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 522. [2023-11-06 21:58:16,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 426 states have (on average 1.5751173708920188) internal successors, (671), 496 states have internal predecessors, (671), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:16,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 713 transitions. [2023-11-06 21:58:16,971 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 713 transitions. Word has length 30 [2023-11-06 21:58:16,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:16,972 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 713 transitions. [2023-11-06 21:58:16,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:16,972 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 713 transitions. [2023-11-06 21:58:16,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-06 21:58:16,973 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:16,973 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:16,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-06 21:58:16,974 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:16,974 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:16,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1688202752, now seen corresponding path program 1 times [2023-11-06 21:58:16,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:16,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247043180] [2023-11-06 21:58:16,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:16,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:17,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:17,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-06 21:58:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:17,206 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-06 21:58:17,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:17,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247043180] [2023-11-06 21:58:17,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247043180] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:17,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542800469] [2023-11-06 21:58:17,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:17,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:17,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:17,212 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:17,236 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-06 21:58:17,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:17,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:58:17,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:17,668 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:58:17,668 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:17,793 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-06 21:58:17,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542800469] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:17,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:17,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 21:58:17,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060195632] [2023-11-06 21:58:17,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:17,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 21:58:17,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:17,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 21:58:17,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 21:58:17,796 INFO L87 Difference]: Start difference. First operand 522 states and 713 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 21:58:17,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:17,986 INFO L93 Difference]: Finished difference Result 1046 states and 1434 transitions. [2023-11-06 21:58:17,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-06 21:58:17,987 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-06 21:58:17,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:17,993 INFO L225 Difference]: With dead ends: 1046 [2023-11-06 21:58:17,994 INFO L226 Difference]: Without dead ends: 539 [2023-11-06 21:58:17,995 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 21:58:17,997 INFO L413 NwaCegarLoop]: 686 mSDtfsCounter, 7 mSDsluCounter, 3415 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4101 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:17,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4101 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:17,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2023-11-06 21:58:18,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2023-11-06 21:58:18,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 444 states have (on average 1.5495495495495495) internal successors, (688), 513 states have internal predecessors, (688), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:18,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 730 transitions. [2023-11-06 21:58:18,031 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 730 transitions. Word has length 31 [2023-11-06 21:58:18,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:18,031 INFO L495 AbstractCegarLoop]: Abstraction has 539 states and 730 transitions. [2023-11-06 21:58:18,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-06 21:58:18,032 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 730 transitions. [2023-11-06 21:58:18,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:58:18,040 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:18,041 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:18,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-06 21:58:18,247 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:18,247 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:18,248 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:18,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1989020529, now seen corresponding path program 1 times [2023-11-06 21:58:18,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:18,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652172502] [2023-11-06 21:58:18,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:18,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:18,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:18,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:18,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:18,527 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 21:58:18,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:18,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652172502] [2023-11-06 21:58:18,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652172502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:18,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:18,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:18,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869961630] [2023-11-06 21:58:18,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:18,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:18,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:18,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:18,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:18,529 INFO L87 Difference]: Start difference. First operand 539 states and 730 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:18,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:18,592 INFO L93 Difference]: Finished difference Result 553 states and 746 transitions. [2023-11-06 21:58:18,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:18,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 21:58:18,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:18,596 INFO L225 Difference]: With dead ends: 553 [2023-11-06 21:58:18,597 INFO L226 Difference]: Without dead ends: 551 [2023-11-06 21:58:18,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:18,598 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 3 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1373 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:18,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1373 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:18,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2023-11-06 21:58:18,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2023-11-06 21:58:18,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 454 states have (on average 1.5440528634361232) internal successors, (701), 523 states have internal predecessors, (701), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:18,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 743 transitions. [2023-11-06 21:58:18,630 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 743 transitions. Word has length 50 [2023-11-06 21:58:18,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:18,630 INFO L495 AbstractCegarLoop]: Abstraction has 549 states and 743 transitions. [2023-11-06 21:58:18,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:18,630 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 743 transitions. [2023-11-06 21:58:18,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-06 21:58:18,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:18,631 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:18,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-06 21:58:18,632 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:18,632 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:18,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1989018800, now seen corresponding path program 1 times [2023-11-06 21:58:18,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:18,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722904771] [2023-11-06 21:58:18,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:18,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:18,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:18,827 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-06 21:58:18,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:18,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722904771] [2023-11-06 21:58:18,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722904771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:18,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:18,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:58:18,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412567910] [2023-11-06 21:58:18,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:18,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-06 21:58:18,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:18,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 21:58:18,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:18,830 INFO L87 Difference]: Start difference. First operand 549 states and 743 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:18,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:18,871 INFO L93 Difference]: Finished difference Result 549 states and 743 transitions. [2023-11-06 21:58:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 21:58:18,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 50 [2023-11-06 21:58:18,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:18,876 INFO L225 Difference]: With dead ends: 549 [2023-11-06 21:58:18,876 INFO L226 Difference]: Without dead ends: 548 [2023-11-06 21:58:18,877 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 21:58:18,878 INFO L413 NwaCegarLoop]: 690 mSDtfsCounter, 0 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1376 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:18,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1376 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:18,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2023-11-06 21:58:18,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 544. [2023-11-06 21:58:18,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 544 states, 450 states have (on average 1.5444444444444445) internal successors, (695), 518 states have internal predecessors, (695), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:18,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 737 transitions. [2023-11-06 21:58:18,912 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 737 transitions. Word has length 50 [2023-11-06 21:58:18,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:18,913 INFO L495 AbstractCegarLoop]: Abstraction has 544 states and 737 transitions. [2023-11-06 21:58:18,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:18,913 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 737 transitions. [2023-11-06 21:58:18,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-06 21:58:18,914 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:18,914 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:18,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-06 21:58:18,915 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:18,915 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:18,915 INFO L85 PathProgramCache]: Analyzing trace with hash 780276974, now seen corresponding path program 1 times [2023-11-06 21:58:18,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:18,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044588518] [2023-11-06 21:58:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:18,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:19,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:19,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:19,178 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:19,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044588518] [2023-11-06 21:58:19,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044588518] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:19,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [19140554] [2023-11-06 21:58:19,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:19,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:19,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:19,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:19,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-06 21:58:19,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:19,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:58:19,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:19,612 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:19,612 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:19,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [19140554] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:19,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:58:19,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-06 21:58:19,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846317384] [2023-11-06 21:58:19,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:19,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:19,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:19,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:19,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:19,615 INFO L87 Difference]: Start difference. First operand 544 states and 737 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:19,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:19,729 INFO L93 Difference]: Finished difference Result 825 states and 1155 transitions. [2023-11-06 21:58:19,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:19,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 52 [2023-11-06 21:58:19,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:19,736 INFO L225 Difference]: With dead ends: 825 [2023-11-06 21:58:19,736 INFO L226 Difference]: Without dead ends: 824 [2023-11-06 21:58:19,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:19,737 INFO L413 NwaCegarLoop]: 1090 mSDtfsCounter, 799 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1774 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:19,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1774 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:19,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2023-11-06 21:58:19,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 543. [2023-11-06 21:58:19,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 450 states have (on average 1.5422222222222222) internal successors, (694), 517 states have internal predecessors, (694), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:19,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 736 transitions. [2023-11-06 21:58:19,776 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 736 transitions. Word has length 52 [2023-11-06 21:58:19,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:19,776 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 736 transitions. [2023-11-06 21:58:19,777 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:19,777 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 736 transitions. [2023-11-06 21:58:19,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-06 21:58:19,777 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:19,778 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] [2023-11-06 21:58:19,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:19,984 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:19,985 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:19,985 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:19,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1581217187, now seen corresponding path program 1 times [2023-11-06 21:58:19,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:19,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372157871] [2023-11-06 21:58:19,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:19,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:20,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,210 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:20,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:20,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372157871] [2023-11-06 21:58:20,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372157871] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:20,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994433800] [2023-11-06 21:58:20,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:20,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:20,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:20,213 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:20,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-06 21:58:20,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:20,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:58:20,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:20,708 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:20,708 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:20,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994433800] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:20,740 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:20,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-06 21:58:20,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556481079] [2023-11-06 21:58:20,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:20,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:58:20,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:20,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:58:20,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:20,743 INFO L87 Difference]: Start difference. First operand 543 states and 736 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:21,017 INFO L93 Difference]: Finished difference Result 1664 states and 2406 transitions. [2023-11-06 21:58:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:21,018 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 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 53 [2023-11-06 21:58:21,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:21,029 INFO L225 Difference]: With dead ends: 1664 [2023-11-06 21:58:21,030 INFO L226 Difference]: Without dead ends: 1663 [2023-11-06 21:58:21,031 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:21,032 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 2026 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2050 SdHoareTripleChecker+Valid, 3887 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:21,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2050 Valid, 3887 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:21,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2023-11-06 21:58:21,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 555. [2023-11-06 21:58:21,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 462 states have (on average 1.5346320346320346) internal successors, (709), 529 states have internal predecessors, (709), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:21,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 751 transitions. [2023-11-06 21:58:21,082 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 751 transitions. Word has length 53 [2023-11-06 21:58:21,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:21,083 INFO L495 AbstractCegarLoop]: Abstraction has 555 states and 751 transitions. [2023-11-06 21:58:21,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:21,083 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 751 transitions. [2023-11-06 21:58:21,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-06 21:58:21,084 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:21,084 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:21,096 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:21,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-06 21:58:21,292 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:21,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:21,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1788394296, now seen corresponding path program 1 times [2023-11-06 21:58:21,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:21,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900125060] [2023-11-06 21:58:21,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:21,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:21,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:21,612 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 21:58:21,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:21,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900125060] [2023-11-06 21:58:21,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900125060] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:21,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781236409] [2023-11-06 21:58:21,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:21,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:21,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:21,616 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:21,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-06 21:58:22,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:22,071 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-06 21:58:22,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:22,100 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 21:58:22,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:22,121 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-06 21:58:22,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781236409] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:22,122 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:22,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-06 21:58:22,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917498562] [2023-11-06 21:58:22,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:22,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-06 21:58:22,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:22,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-06 21:58:22,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:22,124 INFO L87 Difference]: Start difference. First operand 555 states and 751 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:22,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:22,213 INFO L93 Difference]: Finished difference Result 1084 states and 1478 transitions. [2023-11-06 21:58:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:22,214 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2023-11-06 21:58:22,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:22,218 INFO L225 Difference]: With dead ends: 1084 [2023-11-06 21:58:22,218 INFO L226 Difference]: Without dead ends: 573 [2023-11-06 21:58:22,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:22,220 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 4 mSDsluCounter, 2055 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2744 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:22,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2744 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-06 21:58:22,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-06 21:58:22,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2023-11-06 21:58:22,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 480 states have (on average 1.5145833333333334) internal successors, (727), 547 states have internal predecessors, (727), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2023-11-06 21:58:22,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 769 transitions. [2023-11-06 21:58:22,260 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 769 transitions. Word has length 58 [2023-11-06 21:58:22,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:22,260 INFO L495 AbstractCegarLoop]: Abstraction has 573 states and 769 transitions. [2023-11-06 21:58:22,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:22,260 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 769 transitions. [2023-11-06 21:58:22,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-06 21:58:22,261 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:22,261 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:22,280 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:22,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:22,470 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:22,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:22,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1657239914, now seen corresponding path program 1 times [2023-11-06 21:58:22,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:22,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766492219] [2023-11-06 21:58:22,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:22,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:22,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:22,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 21:58:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:22,762 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:22,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:22,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766492219] [2023-11-06 21:58:22,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766492219] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:22,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:22,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:22,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526371021] [2023-11-06 21:58:22,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:22,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:22,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:22,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:22,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:22,766 INFO L87 Difference]: Start difference. First operand 573 states and 769 transitions. Second operand has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 21:58:23,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:23,438 INFO L93 Difference]: Finished difference Result 1176 states and 1610 transitions. [2023-11-06 21:58:23,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:23,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 62 [2023-11-06 21:58:23,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:23,445 INFO L225 Difference]: With dead ends: 1176 [2023-11-06 21:58:23,446 INFO L226 Difference]: Without dead ends: 707 [2023-11-06 21:58:23,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:23,449 INFO L413 NwaCegarLoop]: 698 mSDtfsCounter, 179 mSDsluCounter, 1110 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1808 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:23,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1808 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:58:23,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2023-11-06 21:58:23,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 614. [2023-11-06 21:58:23,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 520 states have (on average 1.5038461538461538) internal successors, (782), 587 states have internal predecessors, (782), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:23,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 826 transitions. [2023-11-06 21:58:23,501 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 826 transitions. Word has length 62 [2023-11-06 21:58:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:23,501 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 826 transitions. [2023-11-06 21:58:23,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-06 21:58:23,502 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 826 transitions. [2023-11-06 21:58:23,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-06 21:58:23,503 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:23,503 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:23,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-11-06 21:58:23,503 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:23,504 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:23,504 INFO L85 PathProgramCache]: Analyzing trace with hash 825323483, now seen corresponding path program 1 times [2023-11-06 21:58:23,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:23,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667446157] [2023-11-06 21:58:23,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:23,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:23,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:23,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-06 21:58:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:23,720 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:23,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:23,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667446157] [2023-11-06 21:58:23,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667446157] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:23,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:23,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:23,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810610555] [2023-11-06 21:58:23,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:23,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:23,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:23,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:23,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:23,723 INFO L87 Difference]: Start difference. First operand 614 states and 826 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:24,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:24,227 INFO L93 Difference]: Finished difference Result 652 states and 871 transitions. [2023-11-06 21:58:24,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:24,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2023-11-06 21:58:24,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:24,232 INFO L225 Difference]: With dead ends: 652 [2023-11-06 21:58:24,232 INFO L226 Difference]: Without dead ends: 650 [2023-11-06 21:58:24,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:24,233 INFO L413 NwaCegarLoop]: 678 mSDtfsCounter, 56 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1836 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:24,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1836 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-06 21:58:24,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2023-11-06 21:58:24,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 614. [2023-11-06 21:58:24,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 520 states have (on average 1.5) internal successors, (780), 587 states have internal predecessors, (780), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:24,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 824 transitions. [2023-11-06 21:58:24,280 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 824 transitions. Word has length 64 [2023-11-06 21:58:24,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:24,280 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 824 transitions. [2023-11-06 21:58:24,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:24,281 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 824 transitions. [2023-11-06 21:58:24,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-06 21:58:24,281 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:24,282 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:24,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-11-06 21:58:24,282 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:24,282 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:24,283 INFO L85 PathProgramCache]: Analyzing trace with hash -13019022, now seen corresponding path program 2 times [2023-11-06 21:58:24,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:24,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539026995] [2023-11-06 21:58:24,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:24,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:24,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:24,646 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-06 21:58:24,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:24,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539026995] [2023-11-06 21:58:24,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539026995] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:24,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110854698] [2023-11-06 21:58:24,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:58:24,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:24,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:24,649 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:24,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-06 21:58:25,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-06 21:58:25,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:25,082 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-06 21:58:25,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:25,189 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2023-11-06 21:58:25,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:25,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110854698] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:25,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:58:25,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-06 21:58:25,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452562029] [2023-11-06 21:58:25,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:25,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-06 21:58:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:25,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-06 21:58:25,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-06 21:58:25,193 INFO L87 Difference]: Start difference. First operand 614 states and 824 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:25,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:25,393 INFO L93 Difference]: Finished difference Result 1153 states and 1567 transitions. [2023-11-06 21:58:25,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-06 21:58:25,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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 65 [2023-11-06 21:58:25,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:25,398 INFO L225 Difference]: With dead ends: 1153 [2023-11-06 21:58:25,398 INFO L226 Difference]: Without dead ends: 614 [2023-11-06 21:58:25,399 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-06 21:58:25,400 INFO L413 NwaCegarLoop]: 674 mSDtfsCounter, 508 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 2669 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:25,400 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 2669 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:25,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states. [2023-11-06 21:58:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 614. [2023-11-06 21:58:25,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 614 states, 520 states have (on average 1.498076923076923) internal successors, (779), 587 states have internal predecessors, (779), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:25,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 823 transitions. [2023-11-06 21:58:25,442 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 823 transitions. Word has length 65 [2023-11-06 21:58:25,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:25,442 INFO L495 AbstractCegarLoop]: Abstraction has 614 states and 823 transitions. [2023-11-06 21:58:25,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:25,442 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 823 transitions. [2023-11-06 21:58:25,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-06 21:58:25,448 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:25,448 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:25,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:25,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-06 21:58:25,664 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:25,664 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:25,664 INFO L85 PathProgramCache]: Analyzing trace with hash 199832486, now seen corresponding path program 2 times [2023-11-06 21:58:25,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:25,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555031047] [2023-11-06 21:58:25,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:25,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:26,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:26,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:26,071 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2023-11-06 21:58:26,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:26,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555031047] [2023-11-06 21:58:26,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555031047] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:26,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756519584] [2023-11-06 21:58:26,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-06 21:58:26,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:26,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:26,088 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:26,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-06 21:58:26,762 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-06 21:58:26,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-06 21:58:26,768 INFO L262 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:58:26,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:26,836 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-06 21:58:26,836 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:26,960 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 58 proven. 22 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2023-11-06 21:58:26,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756519584] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:26,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:26,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-06 21:58:26,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48015431] [2023-11-06 21:58:26,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:26,962 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-06 21:58:26,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:26,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-06 21:58:26,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-06 21:58:26,963 INFO L87 Difference]: Start difference. First operand 614 states and 823 transitions. Second operand has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:27,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:27,439 INFO L93 Difference]: Finished difference Result 1210 states and 1638 transitions. [2023-11-06 21:58:27,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-06 21:58:27,439 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 76 [2023-11-06 21:58:27,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:27,444 INFO L225 Difference]: With dead ends: 1210 [2023-11-06 21:58:27,444 INFO L226 Difference]: Without dead ends: 649 [2023-11-06 21:58:27,446 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=330, Invalid=792, Unknown=0, NotChecked=0, Total=1122 [2023-11-06 21:58:27,447 INFO L413 NwaCegarLoop]: 685 mSDtfsCounter, 11 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3405 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:27,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3405 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-06 21:58:27,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2023-11-06 21:58:27,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 649. [2023-11-06 21:58:27,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 649 states, 556 states have (on average 1.4640287769784173) internal successors, (814), 622 states have internal predecessors, (814), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:27,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 858 transitions. [2023-11-06 21:58:27,489 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 858 transitions. Word has length 76 [2023-11-06 21:58:27,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:27,489 INFO L495 AbstractCegarLoop]: Abstraction has 649 states and 858 transitions. [2023-11-06 21:58:27,490 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.785714285714286) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:27,490 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 858 transitions. [2023-11-06 21:58:27,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-11-06 21:58:27,491 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:27,491 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:27,509 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:27,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-11-06 21:58:27,699 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:27,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:27,700 INFO L85 PathProgramCache]: Analyzing trace with hash 516800444, now seen corresponding path program 1 times [2023-11-06 21:58:27,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:27,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232541947] [2023-11-06 21:58:27,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:27,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:28,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:28,179 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:28,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:28,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232541947] [2023-11-06 21:58:28,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232541947] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:28,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053933034] [2023-11-06 21:58:28,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:28,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:28,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:28,184 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:28,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-06 21:58:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:28,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-06 21:58:28,776 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:28,822 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:28,919 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:28,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053933034] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-06 21:58:28,920 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-06 21:58:28,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-06 21:58:28,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188645079] [2023-11-06 21:58:28,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-06 21:58:28,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-06 21:58:28,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:28,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-06 21:58:28,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 21:58:28,923 INFO L87 Difference]: Start difference. First operand 649 states and 858 transitions. Second operand has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:29,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:29,790 INFO L93 Difference]: Finished difference Result 3854 states and 5574 transitions. [2023-11-06 21:58:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-06 21:58:29,791 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 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 100 [2023-11-06 21:58:29,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:29,814 INFO L225 Difference]: With dead ends: 3854 [2023-11-06 21:58:29,814 INFO L226 Difference]: Without dead ends: 3853 [2023-11-06 21:58:29,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-06 21:58:29,817 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 4489 mSDsluCounter, 8743 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4549 SdHoareTripleChecker+Valid, 9435 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:29,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4549 Valid, 9435 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-06 21:58:29,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2023-11-06 21:58:29,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 673. [2023-11-06 21:58:29,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 673 states, 580 states have (on average 1.4551724137931035) internal successors, (844), 646 states have internal predecessors, (844), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:29,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 888 transitions. [2023-11-06 21:58:29,907 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 888 transitions. Word has length 100 [2023-11-06 21:58:29,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:29,908 INFO L495 AbstractCegarLoop]: Abstraction has 673 states and 888 transitions. [2023-11-06 21:58:29,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 5.833333333333333) internal successors, (70), 13 states have internal predecessors, (70), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:58:29,908 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 888 transitions. [2023-11-06 21:58:29,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-06 21:58:29,910 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:29,910 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:29,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:30,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:30,123 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:30,123 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:30,124 INFO L85 PathProgramCache]: Analyzing trace with hash -31905399, now seen corresponding path program 1 times [2023-11-06 21:58:30,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:30,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681946994] [2023-11-06 21:58:30,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:30,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:30,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:30,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:30,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:30,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:30,928 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:30,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:30,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681946994] [2023-11-06 21:58:30,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681946994] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:30,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:30,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-06 21:58:30,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335324874] [2023-11-06 21:58:30,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:30,963 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:30,963 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:30,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:30,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-06 21:58:30,964 INFO L87 Difference]: Start difference. First operand 673 states and 888 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:31,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:31,659 INFO L93 Difference]: Finished difference Result 1330 states and 1830 transitions. [2023-11-06 21:58:31,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:58:31,660 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 106 [2023-11-06 21:58:31,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:31,666 INFO L225 Difference]: With dead ends: 1330 [2023-11-06 21:58:31,666 INFO L226 Difference]: Without dead ends: 914 [2023-11-06 21:58:31,668 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:31,669 INFO L413 NwaCegarLoop]: 652 mSDtfsCounter, 1333 mSDsluCounter, 1116 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1343 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:31,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1343 Valid, 1768 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 21:58:31,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2023-11-06 21:58:31,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 675. [2023-11-06 21:58:31,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 582 states have (on average 1.4536082474226804) internal successors, (846), 648 states have internal predecessors, (846), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:31,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 890 transitions. [2023-11-06 21:58:31,743 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 890 transitions. Word has length 106 [2023-11-06 21:58:31,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:31,743 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 890 transitions. [2023-11-06 21:58:31,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 890 transitions. [2023-11-06 21:58:31,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-06 21:58:31,745 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:31,745 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:31,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-06 21:58:31,745 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:31,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:31,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1743101963, now seen corresponding path program 1 times [2023-11-06 21:58:31,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:31,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648193507] [2023-11-06 21:58:31,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:31,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:31,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:31,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:31,980 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:31,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:31,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648193507] [2023-11-06 21:58:31,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648193507] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:31,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:31,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:31,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160501844] [2023-11-06 21:58:31,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:31,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:31,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:31,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:31,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:31,983 INFO L87 Difference]: Start difference. First operand 675 states and 890 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:32,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:32,610 INFO L93 Difference]: Finished difference Result 1203 states and 1636 transitions. [2023-11-06 21:58:32,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:32,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 106 [2023-11-06 21:58:32,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:32,615 INFO L225 Difference]: With dead ends: 1203 [2023-11-06 21:58:32,615 INFO L226 Difference]: Without dead ends: 787 [2023-11-06 21:58:32,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:32,617 INFO L413 NwaCegarLoop]: 747 mSDtfsCounter, 173 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1895 SdHoareTripleChecker+Invalid, 320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:32,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1895 Invalid, 320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 21:58:32,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2023-11-06 21:58:32,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 678. [2023-11-06 21:58:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 587 states have (on average 1.4480408858603067) internal successors, (850), 651 states have internal predecessors, (850), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:32,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 894 transitions. [2023-11-06 21:58:32,678 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 894 transitions. Word has length 106 [2023-11-06 21:58:32,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:32,678 INFO L495 AbstractCegarLoop]: Abstraction has 678 states and 894 transitions. [2023-11-06 21:58:32,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 894 transitions. [2023-11-06 21:58:32,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-11-06 21:58:32,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:32,680 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:32,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-06 21:58:32,680 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:32,681 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:32,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1743734454, now seen corresponding path program 1 times [2023-11-06 21:58:32,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:32,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628700321] [2023-11-06 21:58:32,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:32,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:32,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:33,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:33,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:33,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:33,031 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:33,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628700321] [2023-11-06 21:58:33,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628700321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:33,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:33,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:33,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003305062] [2023-11-06 21:58:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:33,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:33,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:33,034 INFO L87 Difference]: Start difference. First operand 678 states and 894 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:33,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:33,674 INFO L93 Difference]: Finished difference Result 718 states and 944 transitions. [2023-11-06 21:58:33,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:33,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 106 [2023-11-06 21:58:33,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:33,680 INFO L225 Difference]: With dead ends: 718 [2023-11-06 21:58:33,680 INFO L226 Difference]: Without dead ends: 715 [2023-11-06 21:58:33,680 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:33,681 INFO L413 NwaCegarLoop]: 623 mSDtfsCounter, 406 mSDsluCounter, 747 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 1370 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:33,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 1370 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:58:33,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 715 states. [2023-11-06 21:58:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 715 to 675. [2023-11-06 21:58:33,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 587 states have (on average 1.442930153321976) internal successors, (847), 648 states have internal predecessors, (847), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:33,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 891 transitions. [2023-11-06 21:58:33,744 INFO L78 Accepts]: Start accepts. Automaton has 675 states and 891 transitions. Word has length 106 [2023-11-06 21:58:33,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:33,744 INFO L495 AbstractCegarLoop]: Abstraction has 675 states and 891 transitions. [2023-11-06 21:58:33,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:33,745 INFO L276 IsEmpty]: Start isEmpty. Operand 675 states and 891 transitions. [2023-11-06 21:58:33,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-06 21:58:33,746 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:33,746 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:33,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-06 21:58:33,747 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:33,747 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:33,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1798413365, now seen corresponding path program 1 times [2023-11-06 21:58:33,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:33,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177845285] [2023-11-06 21:58:33,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:33,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:33,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:33,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:33,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:33,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:33,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177845285] [2023-11-06 21:58:33,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177845285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:33,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:33,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:33,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113844354] [2023-11-06 21:58:33,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:33,983 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:33,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:33,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:33,984 INFO L87 Difference]: Start difference. First operand 675 states and 891 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:34,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:34,654 INFO L93 Difference]: Finished difference Result 1211 states and 1645 transitions. [2023-11-06 21:58:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:34,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 107 [2023-11-06 21:58:34,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:34,659 INFO L225 Difference]: With dead ends: 1211 [2023-11-06 21:58:34,660 INFO L226 Difference]: Without dead ends: 791 [2023-11-06 21:58:34,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:34,662 INFO L413 NwaCegarLoop]: 687 mSDtfsCounter, 295 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 302 SdHoareTripleChecker+Valid, 1704 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:34,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [302 Valid, 1704 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:58:34,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2023-11-06 21:58:34,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 660. [2023-11-06 21:58:34,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 660 states, 576 states have (on average 1.4357638888888888) internal successors, (827), 633 states have internal predecessors, (827), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 660 states to 660 states and 871 transitions. [2023-11-06 21:58:34,723 INFO L78 Accepts]: Start accepts. Automaton has 660 states and 871 transitions. Word has length 107 [2023-11-06 21:58:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:34,723 INFO L495 AbstractCegarLoop]: Abstraction has 660 states and 871 transitions. [2023-11-06 21:58:34,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 660 states and 871 transitions. [2023-11-06 21:58:34,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-06 21:58:34,725 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:34,725 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:34,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-06 21:58:34,725 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:34,726 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:34,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1778806084, now seen corresponding path program 1 times [2023-11-06 21:58:34,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:34,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195534771] [2023-11-06 21:58:34,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:34,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:35,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:35,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:35,038 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:35,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:35,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195534771] [2023-11-06 21:58:35,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195534771] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:35,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:35,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:35,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049694027] [2023-11-06 21:58:35,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:35,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:35,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:35,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:35,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:35,041 INFO L87 Difference]: Start difference. First operand 660 states and 871 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:35,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:35,680 INFO L93 Difference]: Finished difference Result 747 states and 991 transitions. [2023-11-06 21:58:35,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:35,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 107 [2023-11-06 21:58:35,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:35,685 INFO L225 Difference]: With dead ends: 747 [2023-11-06 21:58:35,685 INFO L226 Difference]: Without dead ends: 746 [2023-11-06 21:58:35,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:35,686 INFO L413 NwaCegarLoop]: 668 mSDtfsCounter, 434 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 1504 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:35,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 1504 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-06 21:58:35,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2023-11-06 21:58:35,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 659. [2023-11-06 21:58:35,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 576 states have (on average 1.4340277777777777) internal successors, (826), 632 states have internal predecessors, (826), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:35,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 870 transitions. [2023-11-06 21:58:35,752 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 870 transitions. Word has length 107 [2023-11-06 21:58:35,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:35,753 INFO L495 AbstractCegarLoop]: Abstraction has 659 states and 870 transitions. [2023-11-06 21:58:35,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:35,753 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 870 transitions. [2023-11-06 21:58:35,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-11-06 21:58:35,754 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:35,755 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:35,755 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-11-06 21:58:35,755 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:35,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:35,755 INFO L85 PathProgramCache]: Analyzing trace with hash 472979831, now seen corresponding path program 1 times [2023-11-06 21:58:35,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:35,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209311366] [2023-11-06 21:58:35,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:35,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:35,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:36,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:36,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:36,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:36,173 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:36,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:36,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209311366] [2023-11-06 21:58:36,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209311366] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:36,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608980678] [2023-11-06 21:58:36,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:36,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:36,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:36,180 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:36,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-06 21:58:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:36,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-06 21:58:36,861 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:36,912 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-06 21:58:36,912 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-06 21:58:36,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608980678] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:36,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-06 21:58:36,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-06 21:58:36,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426195840] [2023-11-06 21:58:36,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:36,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-06 21:58:36,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:36,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-06 21:58:36,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:36,915 INFO L87 Difference]: Start difference. First operand 659 states and 870 transitions. Second operand has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-06 21:58:37,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:37,155 INFO L93 Difference]: Finished difference Result 1204 states and 1631 transitions. [2023-11-06 21:58:37,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 21:58:37,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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 108 [2023-11-06 21:58:37,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:37,161 INFO L225 Difference]: With dead ends: 1204 [2023-11-06 21:58:37,161 INFO L226 Difference]: Without dead ends: 735 [2023-11-06 21:58:37,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-06 21:58:37,163 INFO L413 NwaCegarLoop]: 732 mSDtfsCounter, 558 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1692 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:37,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1692 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-06 21:58:37,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2023-11-06 21:58:37,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 658. [2023-11-06 21:58:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 577 states have (on average 1.4263431542461005) internal successors, (823), 631 states have internal predecessors, (823), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:37,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 867 transitions. [2023-11-06 21:58:37,227 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 867 transitions. Word has length 108 [2023-11-06 21:58:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:37,227 INFO L495 AbstractCegarLoop]: Abstraction has 658 states and 867 transitions. [2023-11-06 21:58:37,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.5) internal successors, (50), 5 states have internal predecessors, (50), 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) [2023-11-06 21:58:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 867 transitions. [2023-11-06 21:58:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-06 21:58:37,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:37,229 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:37,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-06 21:58:37,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-06 21:58:37,438 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:37,438 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:37,438 INFO L85 PathProgramCache]: Analyzing trace with hash -732901702, now seen corresponding path program 1 times [2023-11-06 21:58:37,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:37,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902735111] [2023-11-06 21:58:37,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:37,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:37,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:37,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:37,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2023-11-06 21:58:37,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:37,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902735111] [2023-11-06 21:58:37,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902735111] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:58:37,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:58:37,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 21:58:37,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284420906] [2023-11-06 21:58:37,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:58:37,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 21:58:37,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:58:37,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 21:58:37,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:37,781 INFO L87 Difference]: Start difference. First operand 658 states and 867 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:38,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:58:38,371 INFO L93 Difference]: Finished difference Result 694 states and 912 transitions. [2023-11-06 21:58:38,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-06 21:58:38,372 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 110 [2023-11-06 21:58:38,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 21:58:38,377 INFO L225 Difference]: With dead ends: 694 [2023-11-06 21:58:38,377 INFO L226 Difference]: Without dead ends: 693 [2023-11-06 21:58:38,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 21:58:38,379 INFO L413 NwaCegarLoop]: 665 mSDtfsCounter, 57 mSDsluCounter, 1131 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-06 21:58:38,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 1796 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-06 21:58:38,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2023-11-06 21:58:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 657. [2023-11-06 21:58:38,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 577 states have (on average 1.4246100519930676) internal successors, (822), 630 states have internal predecessors, (822), 25 states have call successors, (25), 7 states have call predecessors, (25), 6 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2023-11-06 21:58:38,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 866 transitions. [2023-11-06 21:58:38,451 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 866 transitions. Word has length 110 [2023-11-06 21:58:38,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 21:58:38,451 INFO L495 AbstractCegarLoop]: Abstraction has 657 states and 866 transitions. [2023-11-06 21:58:38,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-06 21:58:38,452 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 866 transitions. [2023-11-06 21:58:38,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2023-11-06 21:58:38,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 21:58:38,453 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 21:58:38,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2023-11-06 21:58:38,454 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_verror_msgErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_verror_msgErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 69 more)] === [2023-11-06 21:58:38,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:58:38,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1245115837, now seen corresponding path program 1 times [2023-11-06 21:58:38,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:58:38,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727659662] [2023-11-06 21:58:38,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:38,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:58:38,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:46,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-06 21:58:46,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:46,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-06 21:58:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:46,833 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-06 21:58:46,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:58:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727659662] [2023-11-06 21:58:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727659662] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-06 21:58:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372941173] [2023-11-06 21:58:46,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:58:46,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-06 21:58:46,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:58:46,836 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-06 21:58:46,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_82936ddc-6584-486d-b0b1-1174637b1c55/bin/uautomizer-verify-WvqO1wxjHP/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-06 21:58:47,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:58:47,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 1030 conjuncts, 96 conjunts are in the unsatisfiable core [2023-11-06 21:58:47,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-06 21:58:47,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:47,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:47,677 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-06 21:58:47,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:47,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:47,705 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 11 [2023-11-06 21:58:47,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:47,725 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2023-11-06 21:58:47,790 INFO L322 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-06 21:58:47,791 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-06 21:58:47,801 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:47,850 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:47,897 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:47,932 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:47,975 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,013 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,055 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,094 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,134 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,175 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,229 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:48,361 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,568 INFO L322 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2023-11-06 21:58:48,568 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2023-11-06 21:58:48,750 INFO L322 Elim1Store]: treesize reduction 60, result has 31.8 percent of original size [2023-11-06 21:58:48,751 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 40 [2023-11-06 21:58:48,777 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:48,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:48,944 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2023-11-06 21:58:48,963 INFO L322 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-06 21:58:48,964 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 109 treesize of output 93 [2023-11-06 21:58:48,976 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 35 [2023-11-06 21:58:48,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:48,990 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 45 [2023-11-06 21:58:49,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:49,009 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 51 [2023-11-06 21:58:49,034 INFO L322 Elim1Store]: treesize reduction 31, result has 13.9 percent of original size [2023-11-06 21:58:49,035 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 130 treesize of output 109 [2023-11-06 21:58:49,049 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 11 [2023-11-06 21:58:49,055 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11 [2023-11-06 21:58:49,065 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-06 21:58:49,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-06 21:58:49,090 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 57 [2023-11-06 21:58:49,116 INFO L322 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2023-11-06 21:58:49,117 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 115 treesize of output 1 [2023-11-06 21:58:49,142 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,142 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,155 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,223 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,223 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,232 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,289 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,289 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,300 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,353 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,354 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,362 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,413 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,415 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,425 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,483 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,484 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,492 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,544 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,544 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,556 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,600 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,600 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,610 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,653 INFO L322 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2023-11-06 21:58:49,654 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 68 [2023-11-06 21:58:49,662 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 11 [2023-11-06 21:58:49,709 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 17 [2023-11-06 21:58:49,713 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-06 21:58:49,862 INFO L134 CoverageAnalysis]: Checked inductivity of 298 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2023-11-06 21:58:49,863 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-06 21:58:50,659 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4340 (Array Int Int)) (v_ArrVal_4341 (Array Int Int)) (v_ArrVal_4342 (Array Int Int)) (v_ArrVal_4343 (Array Int Int)) (v_ArrVal_4344 (Array Int Int)) (v_ArrVal_4345 (Array Int Int)) (v_ArrVal_4339 (Array Int Int))) (not (= (select (select (let ((.cse4 (+ (* |c_ULTIMATE.start_main_~i~5#1| 8) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4340))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_4342))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4))) (store (store (store (store |c_#memory_int| .cse0 v_ArrVal_4339) .cse1 v_ArrVal_4341) .cse2 v_ArrVal_4343) (select (select (store .cse3 .cse2 v_ArrVal_4344) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse4) v_ArrVal_4345))))))) 10) 0) 33))) is different from false [2023-11-06 21:58:51,154 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4340 (Array Int Int)) (v_ArrVal_4341 (Array Int Int)) (v_ArrVal_4342 (Array Int Int)) (v_ArrVal_4343 (Array Int Int)) (v_ArrVal_4344 (Array Int Int)) (v_ArrVal_4345 (Array Int Int)) (v_ArrVal_4335 (Array Int Int)) (v_ArrVal_4336 (Array Int Int)) (v_ArrVal_4337 (Array Int Int)) (v_ArrVal_4338 (Array Int Int)) (v_ArrVal_4339 (Array Int Int))) (not (= (select (select (let ((.cse6 (+ (* |c_ULTIMATE.start_main_~i~5#1| 8) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))) (let ((.cse9 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4336))) (let ((.cse1 (select (select .cse9 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))) (let ((.cse8 (store .cse9 .cse1 v_ArrVal_4338))) (let ((.cse2 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))) (let ((.cse7 (store .cse8 .cse2 v_ArrVal_4340))) (let ((.cse3 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))) (let ((.cse5 (store .cse7 .cse3 v_ArrVal_4342))) (let ((.cse4 (select (select .cse5 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6))) (store (store (store (store (store (store |c_#memory_int| .cse0 v_ArrVal_4335) .cse1 v_ArrVal_4337) .cse2 v_ArrVal_4339) .cse3 v_ArrVal_4341) .cse4 v_ArrVal_4343) (select (select (store .cse5 .cse4 v_ArrVal_4344) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse6) v_ArrVal_4345))))))))))) 10) 0) 33))) is different from false [2023-11-06 21:59:02,689 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4340 (Array Int Int)) (v_ArrVal_4341 (Array Int Int)) (v_ArrVal_4331 (Array Int Int)) (v_ArrVal_4342 (Array Int Int)) (v_ArrVal_4332 (Array Int Int)) (v_ArrVal_4343 (Array Int Int)) (v_ArrVal_4333 (Array Int Int)) (v_ArrVal_4344 (Array Int Int)) (v_ArrVal_4334 (Array Int Int)) (v_ArrVal_4345 (Array Int Int)) (v_ArrVal_4335 (Array Int Int)) (v_ArrVal_4336 (Array Int Int)) (v_ArrVal_4337 (Array Int Int)) (v_ArrVal_4338 (Array Int Int)) (v_ArrVal_4339 (Array Int Int))) (not (= (select (select (let ((.cse8 (+ (* |c_ULTIMATE.start_main_~i~5#1| 8) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8))) (let ((.cse13 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4332))) (let ((.cse1 (select (select .cse13 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8))) (let ((.cse12 (store .cse13 .cse1 v_ArrVal_4333))) (let ((.cse2 (select (select .cse12 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8))) (let ((.cse11 (store .cse12 .cse2 v_ArrVal_4336))) (let ((.cse3 (select (select .cse11 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8))) (let ((.cse10 (store .cse11 .cse3 v_ArrVal_4338))) (let ((.cse4 (select (select .cse10 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8))) (let ((.cse9 (store .cse10 .cse4 v_ArrVal_4340))) (let ((.cse5 (select (select .cse9 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8))) (let ((.cse7 (store .cse9 .cse5 v_ArrVal_4342))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8))) (store (store (store (store (store (store (store (store |c_#memory_int| .cse0 v_ArrVal_4331) .cse1 v_ArrVal_4334) .cse2 v_ArrVal_4335) .cse3 v_ArrVal_4337) .cse4 v_ArrVal_4339) .cse5 v_ArrVal_4341) .cse6 v_ArrVal_4343) (select (select (store .cse7 .cse6 v_ArrVal_4344) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse8) v_ArrVal_4345))))))))))))))) 10) 0) 33))) is different from false [2023-11-06 21:59:05,169 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4340 (Array Int Int)) (v_ArrVal_4330 (Array Int Int)) (v_ArrVal_4341 (Array Int Int)) (v_ArrVal_4331 (Array Int Int)) (v_ArrVal_4342 (Array Int Int)) (v_ArrVal_4332 (Array Int Int)) (v_ArrVal_4343 (Array Int Int)) (v_ArrVal_4333 (Array Int Int)) (v_ArrVal_4344 (Array Int Int)) (v_ArrVal_4334 (Array Int Int)) (v_ArrVal_4345 (Array Int Int)) (v_ArrVal_4335 (Array Int Int)) (v_ArrVal_4336 (Array Int Int)) (v_ArrVal_4337 (Array Int Int)) (v_ArrVal_4338 (Array Int Int)) (v_ArrVal_4339 (Array Int Int)) (v_ArrVal_4329 (Array Int Int))) (not (= 33 (select (select (let ((.cse9 (+ (* |c_ULTIMATE.start_main_~i~5#1| 8) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse15 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4329))) (let ((.cse1 (select (select .cse15 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse14 (store .cse15 .cse1 v_ArrVal_4332))) (let ((.cse2 (select (select .cse14 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse13 (store .cse14 .cse2 v_ArrVal_4333))) (let ((.cse3 (select (select .cse13 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse12 (store .cse13 .cse3 v_ArrVal_4336))) (let ((.cse4 (select (select .cse12 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse11 (store .cse12 .cse4 v_ArrVal_4338))) (let ((.cse5 (select (select .cse11 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse10 (store .cse11 .cse5 v_ArrVal_4340))) (let ((.cse6 (select (select .cse10 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (let ((.cse8 (store .cse10 .cse6 v_ArrVal_4342))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9))) (store (store (store (store (store (store (store (store (store |c_#memory_int| .cse0 v_ArrVal_4330) .cse1 v_ArrVal_4331) .cse2 v_ArrVal_4334) .cse3 v_ArrVal_4335) .cse4 v_ArrVal_4337) .cse5 v_ArrVal_4339) .cse6 v_ArrVal_4341) .cse7 v_ArrVal_4343) (select (select (store .cse8 .cse7 v_ArrVal_4344) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse9) v_ArrVal_4345))))))))))))))))) 10) 0)))) is different from false [2023-11-06 21:59:08,339 WARN L839 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4340 (Array Int Int)) (v_ArrVal_4330 (Array Int Int)) (v_ArrVal_4341 (Array Int Int)) (v_ArrVal_4331 (Array Int Int)) (v_ArrVal_4342 (Array Int Int)) (v_ArrVal_4332 (Array Int Int)) (v_ArrVal_4343 (Array Int Int)) (v_ArrVal_4333 (Array Int Int)) (v_ArrVal_4344 (Array Int Int)) (v_ArrVal_4334 (Array Int Int)) (v_ArrVal_4345 (Array Int Int)) (v_ArrVal_4335 (Array Int Int)) (v_ArrVal_4336 (Array Int Int)) (v_ArrVal_4337 (Array Int Int)) (v_ArrVal_4327 (Array Int Int)) (v_ArrVal_4338 (Array Int Int)) (v_ArrVal_4328 (Array Int Int)) (v_ArrVal_4339 (Array Int Int)) (v_ArrVal_4329 (Array Int Int))) (not (= (select (select (let ((.cse10 (+ (* |c_ULTIMATE.start_main_~i~5#1| 8) |c_ULTIMATE.start_main_~argv~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse17 (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_4328))) (let ((.cse1 (select (select .cse17 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse16 (store .cse17 .cse1 v_ArrVal_4329))) (let ((.cse2 (select (select .cse16 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse15 (store .cse16 .cse2 v_ArrVal_4332))) (let ((.cse3 (select (select .cse15 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse14 (store .cse15 .cse3 v_ArrVal_4333))) (let ((.cse4 (select (select .cse14 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse13 (store .cse14 .cse4 v_ArrVal_4336))) (let ((.cse5 (select (select .cse13 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse12 (store .cse13 .cse5 v_ArrVal_4338))) (let ((.cse6 (select (select .cse12 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse11 (store .cse12 .cse6 v_ArrVal_4340))) (let ((.cse7 (select (select .cse11 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (let ((.cse9 (store .cse11 .cse7 v_ArrVal_4342))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10))) (store (store (store (store (store (store (store (store (store (store |c_#memory_int| .cse0 v_ArrVal_4327) .cse1 v_ArrVal_4330) .cse2 v_ArrVal_4331) .cse3 v_ArrVal_4334) .cse4 v_ArrVal_4335) .cse5 v_ArrVal_4337) .cse6 v_ArrVal_4339) .cse7 v_ArrVal_4341) .cse8 v_ArrVal_4343) (select (select (store .cse9 .cse8 v_ArrVal_4344) |c_ULTIMATE.start_main_~argv~0#1.base|) .cse10) v_ArrVal_4345))))))))))))))))))) 10) 0) 33))) is different from false [2023-11-06 21:59:08,442 INFO L322 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2023-11-06 21:59:08,442 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 51167 treesize of output 14364