./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/sleep-2.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc 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_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sleep-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 02a989da6ea0e1ad4de19118afee49065b0b83aa621868b65efb180285385f84 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 12:00:46,203 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 12:00:46,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-26 12:00:46,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 12:00:46,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 12:00:46,308 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 12:00:46,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 12:00:46,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 12:00:46,310 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 12:00:46,311 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 12:00:46,311 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 12:00:46,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 12:00:46,313 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 12:00:46,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 12:00:46,314 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 12:00:46,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 12:00:46,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 12:00:46,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 12:00:46,317 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 12:00:46,317 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 12:00:46,318 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 12:00:46,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 12:00:46,319 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-26 12:00:46,320 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-26 12:00:46,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 12:00:46,321 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 12:00:46,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 12:00:46,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 12:00:46,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 12:00:46,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 12:00:46,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:46,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 12:00:46,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 12:00:46,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 12:00:46,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 12:00:46,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 12:00:46,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 12:00:46,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 12:00:46,328 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 12:00:46,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 12:00:46,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 12:00:46,329 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_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 02a989da6ea0e1ad4de19118afee49065b0b83aa621868b65efb180285385f84 [2023-11-26 12:00:46,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 12:00:46,640 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 12:00:46,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 12:00:46,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 12:00:46,645 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 12:00:46,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/busybox-1.22.0/sleep-2.i [2023-11-26 12:00:49,915 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 12:00:50,421 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 12:00:50,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/sv-benchmarks/c/busybox-1.22.0/sleep-2.i [2023-11-26 12:00:50,452 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/data/f304346ee/5563ccfc542c4c298d01cd800f44fbbe/FLAGfb19ce269 [2023-11-26 12:00:50,469 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/data/f304346ee/5563ccfc542c4c298d01cd800f44fbbe [2023-11-26 12:00:50,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 12:00:50,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 12:00:50,484 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:50,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 12:00:50,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 12:00:50,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:50" (1/1) ... [2023-11-26 12:00:50,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7166f6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:50, skipping insertion in model container [2023-11-26 12:00:50,492 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:00:50" (1/1) ... [2023-11-26 12:00:50,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 12:00:52,163 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:52,201 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 12:00:52,366 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 12:00:52,615 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:52,615 WARN L675 CHandler]: The function strtoull is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:52,615 WARN L675 CHandler]: The function strspn is called, but not defined or handled by StandardFunctionHandler. [2023-11-26 12:00:52,623 INFO L206 MainTranslator]: Completed translation [2023-11-26 12:00:52,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52 WrapperNode [2023-11-26 12:00:52,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 12:00:52,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:52,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 12:00:52,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 12:00:52,635 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,767 INFO L138 Inliner]: procedures = 633, calls = 241, calls flagged for inlining = 17, calls inlined = 15, statements flattened = 801 [2023-11-26 12:00:52,768 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 12:00:52,769 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 12:00:52,769 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 12:00:52,769 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 12:00:52,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,784 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,795 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,816 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2023-11-26 12:00:52,816 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,817 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,851 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,867 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 12:00:52,888 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 12:00:52,888 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 12:00:52,888 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 12:00:52,889 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (1/1) ... [2023-11-26 12:00:52,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 12:00:52,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:52,938 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 12:00:52,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 12:00:52,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 12:00:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-26 12:00:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure xatoul_sfx [2023-11-26 12:00:52,989 INFO L138 BoogieDeclarations]: Found implementation of procedure xatoul_sfx [2023-11-26 12:00:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-26 12:00:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-26 12:00:52,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 12:00:52,990 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-26 12:00:52,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 12:00:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-26 12:00:52,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 12:00:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 12:00:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-26 12:00:52,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-26 12:00:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-26 12:00:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-26 12:00:52,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 12:00:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 12:00:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 12:00:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-26 12:00:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure bb_show_usage [2023-11-26 12:00:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_show_usage [2023-11-26 12:00:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure strspn [2023-11-26 12:00:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2023-11-26 12:00:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-26 12:00:52,993 INFO L130 BoogieDeclarations]: Found specification of procedure bb_error_msg_and_die [2023-11-26 12:00:52,993 INFO L138 BoogieDeclarations]: Found implementation of procedure bb_error_msg_and_die [2023-11-26 12:00:52,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-26 12:00:53,430 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 12:00:53,434 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 12:00:54,439 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 12:00:54,526 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 12:00:54,526 INFO L309 CfgBuilder]: Removed 12 assume(true) statements. [2023-11-26 12:00:54,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:54 BoogieIcfgContainer [2023-11-26 12:00:54,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 12:00:54,531 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 12:00:54,531 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 12:00:54,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 12:00:54,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:00:50" (1/3) ... [2023-11-26 12:00:54,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3404ced4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:54, skipping insertion in model container [2023-11-26 12:00:54,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:00:52" (2/3) ... [2023-11-26 12:00:54,539 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3404ced4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:00:54, skipping insertion in model container [2023-11-26 12:00:54,539 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:00:54" (3/3) ... [2023-11-26 12:00:54,542 INFO L112 eAbstractionObserver]: Analyzing ICFG sleep-2.i [2023-11-26 12:00:54,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 12:00:54,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 47 error locations. [2023-11-26 12:00:54,743 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 12:00:54,756 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3a353b6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 12:00:54,757 INFO L358 AbstractCegarLoop]: Starting to check reachability of 47 error locations. [2023-11-26 12:00:54,769 INFO L276 IsEmpty]: Start isEmpty. Operand has 228 states, 159 states have (on average 1.729559748427673) internal successors, (275), 208 states have internal predecessors, (275), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-26 12:00:54,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-26 12:00:54,776 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:54,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-26 12:00:54,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:54,783 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:54,783 INFO L85 PathProgramCache]: Analyzing trace with hash 653344, now seen corresponding path program 1 times [2023-11-26 12:00:54,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:54,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348631818] [2023-11-26 12:00:54,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:54,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:55,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:55,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348631818] [2023-11-26 12:00:55,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348631818] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:55,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:55,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-11-26 12:00:55,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542922593] [2023-11-26 12:00:55,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:55,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:55,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:55,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:55,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:55,398 INFO L87 Difference]: Start difference. First operand has 228 states, 159 states have (on average 1.729559748427673) internal successors, (275), 208 states have internal predecessors, (275), 16 states have call successors, (16), 5 states have call predecessors, (16), 5 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-26 12:00:55,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:55,574 INFO L93 Difference]: Finished difference Result 420 states and 577 transitions. [2023-11-26 12:00:55,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:55,577 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2023-11-26 12:00:55,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:55,588 INFO L225 Difference]: With dead ends: 420 [2023-11-26 12:00:55,588 INFO L226 Difference]: Without dead ends: 185 [2023-11-26 12:00:55,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:55,608 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 1 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:55,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 454 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:55,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2023-11-26 12:00:55,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2023-11-26 12:00:55,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 130 states have (on average 1.5846153846153845) internal successors, (206), 171 states have internal predecessors, (206), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 226 transitions. [2023-11-26 12:00:55,697 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 226 transitions. Word has length 3 [2023-11-26 12:00:55,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:55,698 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 226 transitions. [2023-11-26 12:00:55,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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) [2023-11-26 12:00:55,700 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 226 transitions. [2023-11-26 12:00:55,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-26 12:00:55,702 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:55,702 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2023-11-26 12:00:55,702 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 12:00:55,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:55,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:55,705 INFO L85 PathProgramCache]: Analyzing trace with hash -2010736850, now seen corresponding path program 1 times [2023-11-26 12:00:55,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:55,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513189642] [2023-11-26 12:00:55,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:55,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:55,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:55,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:55,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513189642] [2023-11-26 12:00:55,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513189642] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:55,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183823820] [2023-11-26 12:00:55,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:55,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:55,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:55,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:55,992 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-26 12:00:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:56,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:56,280 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:56,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:56,328 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:56,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183823820] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:56,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:00:56,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 3 [2023-11-26 12:00:56,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743673433] [2023-11-26 12:00:56,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:56,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 12:00:56,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:56,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 12:00:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:56,335 INFO L87 Difference]: Start difference. First operand 185 states and 226 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-26 12:00:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:56,428 INFO L93 Difference]: Finished difference Result 185 states and 226 transitions. [2023-11-26 12:00:56,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 12:00:56,429 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-26 12:00:56,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:56,432 INFO L225 Difference]: With dead ends: 185 [2023-11-26 12:00:56,433 INFO L226 Difference]: Without dead ends: 184 [2023-11-26 12:00:56,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:56,438 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 5 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:56,439 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 413 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:56,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2023-11-26 12:00:56,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2023-11-26 12:00:56,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 130 states have (on average 1.5769230769230769) internal successors, (205), 170 states have internal predecessors, (205), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:56,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 225 transitions. [2023-11-26 12:00:56,460 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 225 transitions. Word has length 6 [2023-11-26 12:00:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:56,460 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 225 transitions. [2023-11-26 12:00:56,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-11-26 12:00:56,461 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 225 transitions. [2023-11-26 12:00:56,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-26 12:00:56,462 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:56,462 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2023-11-26 12:00:56,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:56,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:56,668 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:56,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:56,669 INFO L85 PathProgramCache]: Analyzing trace with hash 2091667421, now seen corresponding path program 1 times [2023-11-26 12:00:56,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:56,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073041668] [2023-11-26 12:00:56,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:56,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:00:56,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:56,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073041668] [2023-11-26 12:00:56,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073041668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:56,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:56,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:56,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487961412] [2023-11-26 12:00:56,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:56,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:56,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:56,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:56,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:56,783 INFO L87 Difference]: Start difference. First operand 184 states and 225 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-26 12:00:56,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:56,830 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2023-11-26 12:00:56,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:56,831 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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 [2023-11-26 12:00:56,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:56,833 INFO L225 Difference]: With dead ends: 184 [2023-11-26 12:00:56,833 INFO L226 Difference]: Without dead ends: 183 [2023-11-26 12:00:56,833 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 [2023-11-26 12:00:56,834 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:56,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 414 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:00:56,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-11-26 12:00:56,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 181. [2023-11-26 12:00:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 128 states have (on average 1.578125) internal successors, (202), 167 states have internal predecessors, (202), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:56,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 222 transitions. [2023-11-26 12:00:56,847 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 222 transitions. Word has length 7 [2023-11-26 12:00:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:56,848 INFO L495 AbstractCegarLoop]: Abstraction has 181 states and 222 transitions. [2023-11-26 12:00:56,848 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 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) [2023-11-26 12:00:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 222 transitions. [2023-11-26 12:00:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-26 12:00:56,849 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:56,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:56,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 12:00:56,850 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:56,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:56,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1570820855, now seen corresponding path program 1 times [2023-11-26 12:00:56,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:56,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533987578] [2023-11-26 12:00:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:56,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 12:00:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:57,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:57,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533987578] [2023-11-26 12:00:57,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533987578] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:57,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298095850] [2023-11-26 12:00:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:57,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:57,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:57,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:57,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-26 12:00:57,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:57,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-26 12:00:57,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:57,262 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-26 12:00:57,262 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:57,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298095850] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:57,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:00:57,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-26 12:00:57,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459620906] [2023-11-26 12:00:57,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:57,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:57,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:57,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:57,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:57,265 INFO L87 Difference]: Start difference. First operand 181 states and 222 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-26 12:00:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:57,334 INFO L93 Difference]: Finished difference Result 181 states and 222 transitions. [2023-11-26 12:00:57,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:57,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2023-11-26 12:00:57,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:57,337 INFO L225 Difference]: With dead ends: 181 [2023-11-26 12:00:57,337 INFO L226 Difference]: Without dead ends: 179 [2023-11-26 12:00:57,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:00:57,339 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 39 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:57,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 367 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:57,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-11-26 12:00:57,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2023-11-26 12:00:57,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 128 states have (on average 1.5625) internal successors, (200), 165 states have internal predecessors, (200), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:57,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 220 transitions. [2023-11-26 12:00:57,351 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 220 transitions. Word has length 12 [2023-11-26 12:00:57,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:57,353 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 220 transitions. [2023-11-26 12:00:57,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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) [2023-11-26 12:00:57,353 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 220 transitions. [2023-11-26 12:00:57,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-26 12:00:57,354 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:57,354 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:57,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:57,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:57,561 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:57,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:57,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1450806589, now seen corresponding path program 1 times [2023-11-26 12:00:57,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:57,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386864417] [2023-11-26 12:00:57,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:57,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:57,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:57,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-26 12:00:57,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:57,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:57,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386864417] [2023-11-26 12:00:57,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386864417] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:57,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [241780204] [2023-11-26 12:00:57,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:57,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:57,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:57,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:57,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-26 12:00:57,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:57,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:00:57,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:58,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:58,005 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:00:58,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:58,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [241780204] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:00:58,034 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:00:58,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-26 12:00:58,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528060672] [2023-11-26 12:00:58,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:00:58,036 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:00:58,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:58,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:00:58,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:00:58,037 INFO L87 Difference]: Start difference. First operand 179 states and 220 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2023-11-26 12:00:58,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:58,125 INFO L93 Difference]: Finished difference Result 362 states and 446 transitions. [2023-11-26 12:00:58,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:00:58,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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 13 [2023-11-26 12:00:58,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:58,127 INFO L225 Difference]: With dead ends: 362 [2023-11-26 12:00:58,127 INFO L226 Difference]: Without dead ends: 188 [2023-11-26 12:00:58,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:00:58,131 INFO L413 NwaCegarLoop]: 206 mSDtfsCounter, 4 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 818 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:58,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 818 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:58,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2023-11-26 12:00:58,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 188. [2023-11-26 12:00:58,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 137 states have (on average 1.5255474452554745) internal successors, (209), 174 states have internal predecessors, (209), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 229 transitions. [2023-11-26 12:00:58,140 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 229 transitions. Word has length 13 [2023-11-26 12:00:58,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:58,141 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 229 transitions. [2023-11-26 12:00:58,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 7 states have internal predecessors, (23), 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) [2023-11-26 12:00:58,141 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 229 transitions. [2023-11-26 12:00:58,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-26 12:00:58,142 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:58,142 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:58,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:58,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:58,349 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:58,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:58,350 INFO L85 PathProgramCache]: Analyzing trace with hash -182141557, now seen corresponding path program 2 times [2023-11-26 12:00:58,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:58,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1103913618] [2023-11-26 12:00:58,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:58,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:58,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:00:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:58,620 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-26 12:00:58,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:58,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1103913618] [2023-11-26 12:00:58,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1103913618] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:58,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2091381748] [2023-11-26 12:00:58,621 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:00:58,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:58,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:58,622 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:58,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-26 12:00:58,919 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-26 12:00:58,919 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:00:58,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:00:58,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:00:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 12:00:59,031 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 12:00:59,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2091381748] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:59,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-26 12:00:59,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-26 12:00:59,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975614364] [2023-11-26 12:00:59,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:59,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:00:59,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:59,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:00:59,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-26 12:00:59,042 INFO L87 Difference]: Start difference. First operand 188 states and 229 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2023-11-26 12:00:59,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:59,182 INFO L93 Difference]: Finished difference Result 188 states and 229 transitions. [2023-11-26 12:00:59,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:00:59,183 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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 22 [2023-11-26 12:00:59,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:59,185 INFO L225 Difference]: With dead ends: 188 [2023-11-26 12:00:59,185 INFO L226 Difference]: Without dead ends: 186 [2023-11-26 12:00:59,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-26 12:00:59,187 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 38 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 742 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:59,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 742 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:59,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-26 12:00:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-26 12:00:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 137 states have (on average 1.510948905109489) internal successors, (207), 172 states have internal predecessors, (207), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 227 transitions. [2023-11-26 12:00:59,200 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 227 transitions. Word has length 22 [2023-11-26 12:00:59,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:59,200 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 227 transitions. [2023-11-26 12:00:59,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 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) [2023-11-26 12:00:59,200 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 227 transitions. [2023-11-26 12:00:59,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-26 12:00:59,204 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:59,204 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:00:59,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-26 12:00:59,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:59,411 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:59,412 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:59,412 INFO L85 PathProgramCache]: Analyzing trace with hash 636493238, now seen corresponding path program 1 times [2023-11-26 12:00:59,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:59,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665838305] [2023-11-26 12:00:59,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:59,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:59,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:00:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:59,576 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 12:00:59,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:59,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665838305] [2023-11-26 12:00:59,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665838305] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:00:59,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:00:59,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:00:59,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310930855] [2023-11-26 12:00:59,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:00:59,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:00:59,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:00:59,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:00:59,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:00:59,579 INFO L87 Difference]: Start difference. First operand 186 states and 227 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-26 12:00:59,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:00:59,642 INFO L93 Difference]: Finished difference Result 355 states and 438 transitions. [2023-11-26 12:00:59,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:00:59,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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 27 [2023-11-26 12:00:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:00:59,645 INFO L225 Difference]: With dead ends: 355 [2023-11-26 12:00:59,645 INFO L226 Difference]: Without dead ends: 189 [2023-11-26 12:00:59,646 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 [2023-11-26 12:00:59,647 INFO L413 NwaCegarLoop]: 204 mSDtfsCounter, 1 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 403 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:00:59,647 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 403 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:00:59,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-11-26 12:00:59,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2023-11-26 12:00:59,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 140 states have (on average 1.5) internal successors, (210), 175 states have internal predecessors, (210), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:00:59,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 230 transitions. [2023-11-26 12:00:59,657 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 230 transitions. Word has length 27 [2023-11-26 12:00:59,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:00:59,657 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 230 transitions. [2023-11-26 12:00:59,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2023-11-26 12:00:59,658 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 230 transitions. [2023-11-26 12:00:59,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-26 12:00:59,659 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:00:59,659 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] [2023-11-26 12:00:59,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-26 12:00:59,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:00:59,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:00:59,660 INFO L85 PathProgramCache]: Analyzing trace with hash -510196294, now seen corresponding path program 1 times [2023-11-26 12:00:59,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:00:59,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993865221] [2023-11-26 12:00:59,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:59,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:00:59,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:59,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-26 12:00:59,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:00:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-26 12:00:59,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:00:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993865221] [2023-11-26 12:00:59,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993865221] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:00:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1395195405] [2023-11-26 12:00:59,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:00:59,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:00:59,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:00:59,944 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:00:59,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-26 12:01:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:00,247 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:01:00,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:00,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-26 12:01:00,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1395195405] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:00,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:00,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 6, 7] total 14 [2023-11-26 12:01:00,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106795145] [2023-11-26 12:01:00,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:00,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-26 12:01:00,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:00,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-26 12:01:00,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:01:00,440 INFO L87 Difference]: Start difference. First operand 189 states and 230 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 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) [2023-11-26 12:01:00,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:00,624 INFO L93 Difference]: Finished difference Result 381 states and 469 transitions. [2023-11-26 12:01:00,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-26 12:01:00,625 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 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 30 [2023-11-26 12:01:00,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:00,627 INFO L225 Difference]: With dead ends: 381 [2023-11-26 12:01:00,627 INFO L226 Difference]: Without dead ends: 206 [2023-11-26 12:01:00,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-26 12:01:00,629 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 7 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1178 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:00,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1178 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:00,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2023-11-26 12:01:00,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2023-11-26 12:01:00,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 158 states have (on average 1.4367088607594938) internal successors, (227), 192 states have internal predecessors, (227), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:00,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 247 transitions. [2023-11-26 12:01:00,640 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 247 transitions. Word has length 30 [2023-11-26 12:01:00,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:00,640 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 247 transitions. [2023-11-26 12:01:00,640 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 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) [2023-11-26 12:01:00,640 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 247 transitions. [2023-11-26 12:01:00,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 12:01:00,642 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:00,642 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] [2023-11-26 12:01:00,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:00,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:00,857 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:01:00,857 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:00,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1996076018, now seen corresponding path program 1 times [2023-11-26 12:01:00,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:00,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735732415] [2023-11-26 12:01:00,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:00,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,099 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 12:01:01,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:01,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735732415] [2023-11-26 12:01:01,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735732415] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:01,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:01,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:01,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231679052] [2023-11-26 12:01:01,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:01,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:01,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:01,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:01,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:01,102 INFO L87 Difference]: Start difference. First operand 206 states and 247 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-26 12:01:01,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:01,171 INFO L93 Difference]: Finished difference Result 220 states and 263 transitions. [2023-11-26 12:01:01,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:01,171 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 49 [2023-11-26 12:01:01,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:01,175 INFO L225 Difference]: With dead ends: 220 [2023-11-26 12:01:01,175 INFO L226 Difference]: Without dead ends: 218 [2023-11-26 12:01:01,175 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 [2023-11-26 12:01:01,178 INFO L413 NwaCegarLoop]: 201 mSDtfsCounter, 3 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:01,178 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 398 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:01,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-26 12:01:01,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 216. [2023-11-26 12:01:01,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 168 states have (on average 1.4285714285714286) internal successors, (240), 202 states have internal predecessors, (240), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:01,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2023-11-26 12:01:01,191 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 49 [2023-11-26 12:01:01,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:01,192 INFO L495 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2023-11-26 12:01:01,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-26 12:01:01,193 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2023-11-26 12:01:01,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-26 12:01:01,200 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:01,200 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] [2023-11-26 12:01:01,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-26 12:01:01,201 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:01:01,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:01,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1996077747, now seen corresponding path program 1 times [2023-11-26 12:01:01,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:01,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685299895] [2023-11-26 12:01:01,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:01,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,420 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-26 12:01:01,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:01,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685299895] [2023-11-26 12:01:01,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685299895] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:01,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:01,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 12:01:01,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666176991] [2023-11-26 12:01:01,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:01,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-26 12:01:01,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:01,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-26 12:01:01,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-26 12:01:01,423 INFO L87 Difference]: Start difference. First operand 216 states and 260 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-26 12:01:01,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:01,478 INFO L93 Difference]: Finished difference Result 216 states and 260 transitions. [2023-11-26 12:01:01,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-26 12:01:01,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 49 [2023-11-26 12:01:01,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:01,481 INFO L225 Difference]: With dead ends: 216 [2023-11-26 12:01:01,481 INFO L226 Difference]: Without dead ends: 215 [2023-11-26 12:01:01,481 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 [2023-11-26 12:01:01,482 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 0 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:01,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 401 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 12:01:01,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-26 12:01:01,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 211. [2023-11-26 12:01:01,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 164 states have (on average 1.4268292682926829) internal successors, (234), 197 states have internal predecessors, (234), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:01,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 254 transitions. [2023-11-26 12:01:01,494 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 254 transitions. Word has length 49 [2023-11-26 12:01:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:01,495 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 254 transitions. [2023-11-26 12:01:01,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2023-11-26 12:01:01,495 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 254 transitions. [2023-11-26 12:01:01,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 12:01:01,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:01,496 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] [2023-11-26 12:01:01,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-26 12:01:01,497 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting xatoul_sfxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:01:01,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:01,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1280208777, now seen corresponding path program 1 times [2023-11-26 12:01:01,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:01,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541959383] [2023-11-26 12:01:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:01,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:01,846 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:01,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:01,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541959383] [2023-11-26 12:01:01,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541959383] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:01,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:01,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 12:01:01,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615439936] [2023-11-26 12:01:01,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:01,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-26 12:01:01,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:01,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-26 12:01:01,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-26 12:01:01,849 INFO L87 Difference]: Start difference. First operand 211 states and 254 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:02,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:02,116 INFO L93 Difference]: Finished difference Result 220 states and 265 transitions. [2023-11-26 12:01:02,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 12:01:02,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2023-11-26 12:01:02,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:02,118 INFO L225 Difference]: With dead ends: 220 [2023-11-26 12:01:02,119 INFO L226 Difference]: Without dead ends: 218 [2023-11-26 12:01:02,119 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:01:02,120 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 7 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:02,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 723 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:02,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-11-26 12:01:02,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 215. [2023-11-26 12:01:02,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 168 states have (on average 1.4226190476190477) internal successors, (239), 201 states have internal predecessors, (239), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:02,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 259 transitions. [2023-11-26 12:01:02,132 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 259 transitions. Word has length 54 [2023-11-26 12:01:02,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:02,132 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 259 transitions. [2023-11-26 12:01:02,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 259 transitions. [2023-11-26 12:01:02,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-26 12:01:02,133 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:02,134 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] [2023-11-26 12:01:02,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-26 12:01:02,134 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting xatoul_sfxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:01:02,134 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:02,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1280149195, now seen corresponding path program 1 times [2023-11-26 12:01:02,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:02,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434288532] [2023-11-26 12:01:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:02,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:02,724 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:02,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:02,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434288532] [2023-11-26 12:01:02,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434288532] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 12:01:02,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 12:01:02,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-26 12:01:02,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103215466] [2023-11-26 12:01:02,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 12:01:02,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-26 12:01:02,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:02,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-26 12:01:02,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-26 12:01:02,727 INFO L87 Difference]: Start difference. First operand 215 states and 259 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:02,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:02,906 INFO L93 Difference]: Finished difference Result 374 states and 456 transitions. [2023-11-26 12:01:02,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:01:02,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 54 [2023-11-26 12:01:02,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:02,908 INFO L225 Difference]: With dead ends: 374 [2023-11-26 12:01:02,908 INFO L226 Difference]: Without dead ends: 215 [2023-11-26 12:01:02,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:02,909 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 41 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:02,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 913 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-26 12:01:02,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2023-11-26 12:01:02,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2023-11-26 12:01:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 168 states have (on average 1.4166666666666667) internal successors, (238), 201 states have internal predecessors, (238), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:02,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 258 transitions. [2023-11-26 12:01:02,921 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 258 transitions. Word has length 54 [2023-11-26 12:01:02,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:02,921 INFO L495 AbstractCegarLoop]: Abstraction has 215 states and 258 transitions. [2023-11-26 12:01:02,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:02,922 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 258 transitions. [2023-11-26 12:01:02,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-26 12:01:02,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:02,922 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] [2023-11-26 12:01:02,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-26 12:01:02,923 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:01:02,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:02,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1791489563, now seen corresponding path program 1 times [2023-11-26 12:01:02,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:02,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457032302] [2023-11-26 12:01:02,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:02,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:03,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:03,142 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 12:01:03,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:03,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457032302] [2023-11-26 12:01:03,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457032302] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:03,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2094566165] [2023-11-26 12:01:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:03,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:03,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:03,144 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:03,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-26 12:01:03,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:03,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-26 12:01:03,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 12:01:03,539 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-26 12:01:03,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2094566165] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:03,603 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:03,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-26 12:01:03,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528174380] [2023-11-26 12:01:03,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:03,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-26 12:01:03,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:03,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-26 12:01:03,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:03,606 INFO L87 Difference]: Start difference. First operand 215 states and 258 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2023-11-26 12:01:03,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:03,746 INFO L93 Difference]: Finished difference Result 405 states and 494 transitions. [2023-11-26 12:01:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-26 12:01:03,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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 57 [2023-11-26 12:01:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:03,762 INFO L225 Difference]: With dead ends: 405 [2023-11-26 12:01:03,762 INFO L226 Difference]: Without dead ends: 233 [2023-11-26 12:01:03,763 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-26 12:01:03,764 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 4 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 401 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:03,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 401 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:03,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2023-11-26 12:01:03,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2023-11-26 12:01:03,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 233 states, 186 states have (on average 1.3763440860215055) internal successors, (256), 219 states have internal predecessors, (256), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:03,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 276 transitions. [2023-11-26 12:01:03,782 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 276 transitions. Word has length 57 [2023-11-26 12:01:03,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:03,783 INFO L495 AbstractCegarLoop]: Abstraction has 233 states and 276 transitions. [2023-11-26 12:01:03,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 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) [2023-11-26 12:01:03,783 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 276 transitions. [2023-11-26 12:01:03,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-26 12:01:03,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:03,784 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 12:01:03,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:03,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-26 12:01:03,993 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting xatoul_sfxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:01:03,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:03,993 INFO L85 PathProgramCache]: Analyzing trace with hash 910950952, now seen corresponding path program 1 times [2023-11-26 12:01:03,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:03,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138170151] [2023-11-26 12:01:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:03,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:04,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:04,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:04,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:04,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138170151] [2023-11-26 12:01:04,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138170151] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:04,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307685108] [2023-11-26 12:01:04,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:04,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:04,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:04,420 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:04,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-26 12:01:04,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:04,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 12:01:04,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:04,878 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:04,878 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:05,000 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:05,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307685108] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:05,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:05,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-26 12:01:05,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901042088] [2023-11-26 12:01:05,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:05,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-26 12:01:05,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:05,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-26 12:01:05,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:01:05,003 INFO L87 Difference]: Start difference. First operand 233 states and 276 transitions. Second operand has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:05,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 12:01:05,129 INFO L93 Difference]: Finished difference Result 450 states and 545 transitions. [2023-11-26 12:01:05,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-26 12:01:05,129 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 71 [2023-11-26 12:01:05,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 12:01:05,131 INFO L225 Difference]: With dead ends: 450 [2023-11-26 12:01:05,131 INFO L226 Difference]: Without dead ends: 269 [2023-11-26 12:01:05,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-11-26 12:01:05,133 INFO L413 NwaCegarLoop]: 202 mSDtfsCounter, 4 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-26 12:01:05,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 600 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-26 12:01:05,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2023-11-26 12:01:05,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 269. [2023-11-26 12:01:05,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 222 states have (on average 1.3153153153153154) internal successors, (292), 255 states have internal predecessors, (292), 11 states have call successors, (11), 4 states have call predecessors, (11), 3 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-26 12:01:05,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 312 transitions. [2023-11-26 12:01:05,149 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 312 transitions. Word has length 71 [2023-11-26 12:01:05,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 12:01:05,149 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 312 transitions. [2023-11-26 12:01:05,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.538461538461538) internal successors, (59), 13 states have internal predecessors, (59), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-26 12:01:05,150 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 312 transitions. [2023-11-26 12:01:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-26 12:01:05,151 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 12:01:05,151 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] [2023-11-26 12:01:05,169 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-26 12:01:05,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-26 12:01:05,359 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting xatoul_sfxErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [bb_error_msg_and_dieErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, bb_error_msg_and_dieErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 44 more)] === [2023-11-26 12:01:05,359 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 12:01:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash 273024680, now seen corresponding path program 2 times [2023-11-26 12:01:05,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 12:01:05,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141012784] [2023-11-26 12:01:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 12:01:05,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 12:01:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:13,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-26 12:01:13,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 12:01:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 146 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-26 12:01:13,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 12:01:13,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141012784] [2023-11-26 12:01:13,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141012784] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-26 12:01:13,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1810211983] [2023-11-26 12:01:13,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-26 12:01:13,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-26 12:01:13,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 12:01:13,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-26 12:01:13,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_541ab9b3-fe70-4268-b5f5-48c115586aca/bin/uautomizer-verify-VRDe98Ueme/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-26 12:01:13,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-26 12:01:13,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-26 12:01:13,688 INFO L262 TraceCheckSpWp]: Trace formula consists of 825 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-26 12:01:13,727 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 12:01:13,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-26 12:01:13,811 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-26 12:01:13,811 INFO L378 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 [2023-11-26 12:01:13,827 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-26 12:01:13,835 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-26 12:01:13,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:13,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:13,952 INFO L378 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 60 [2023-11-26 12:01:13,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:13,968 INFO L378 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 41 [2023-11-26 12:01:14,003 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:14,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 69 [2023-11-26 12:01:14,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:14,028 INFO L378 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 38 treesize of output 18 [2023-11-26 12:01:14,053 INFO L349 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-26 12:01:14,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 18 [2023-11-26 12:01:14,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:14,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:14,100 INFO L378 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2023-11-26 12:01:14,304 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:14,305 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:14,342 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:14,343 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:14,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:14,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:14,637 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:14,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:14,674 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:14,674 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:14,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:14,688 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:14,920 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:14,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:14,958 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:14,958 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:14,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:14,969 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:15,197 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:15,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:15,233 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:15,234 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:15,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:15,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:15,474 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:15,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:15,516 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:15,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:15,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:15,534 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:15,762 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:15,763 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:15,799 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:15,799 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:15,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:15,817 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:16,035 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:16,036 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:16,075 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:16,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:16,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:16,093 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:16,323 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:16,324 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:16,357 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:16,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:16,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:16,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:16,597 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:16,597 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:16,628 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:16,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:16,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:16,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:16,859 INFO L349 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2023-11-26 12:01:16,859 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 69 treesize of output 63 [2023-11-26 12:01:16,895 INFO L349 Elim1Store]: treesize reduction 21, result has 38.2 percent of original size [2023-11-26 12:01:16,896 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 26 [2023-11-26 12:01:16,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-26 12:01:16,913 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 7 [2023-11-26 12:01:17,494 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-26 12:01:17,494 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 12:01:28,284 INFO L349 Elim1Store]: treesize reduction 88, result has 46.7 percent of original size [2023-11-26 12:01:28,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 1415 treesize of output 452 [2023-11-26 12:01:28,336 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:01:28,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 497 treesize of output 503 [2023-11-26 12:01:28,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 156883517 treesize of output 156490291 [2023-11-26 12:01:29,509 INFO L349 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2023-11-26 12:01:29,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 495565 treesize of output 472839 [2023-11-26 12:01:30,253 INFO L378 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 571 treesize of output 563 [2023-11-26 12:01:30,280 INFO L378 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 563 treesize of output 555 [2023-11-26 12:01:30,307 INFO L378 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 555 treesize of output 543 [2023-11-26 12:01:30,333 INFO L378 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 543 treesize of output 531 [2023-11-26 12:01:30,360 INFO L378 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 531 treesize of output 523 [2023-11-26 12:01:30,387 INFO L378 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 523 treesize of output 519 [2023-11-26 12:01:30,414 INFO L378 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 519 treesize of output 511 [2023-11-26 12:01:30,445 INFO L378 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 511 treesize of output 503 [2023-11-26 12:01:30,471 INFO L378 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 503 treesize of output 487 [2023-11-26 12:01:30,497 INFO L378 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 487 treesize of output 479 [2023-11-26 12:01:30,747 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-26 12:01:30,749 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 1642257 treesize of output 1452456 [2023-11-26 12:01:31,387 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 462 treesize of output 442 [2023-11-26 12:01:31,414 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 442 treesize of output 426 [2023-11-26 12:01:31,441 INFO L378 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 426 treesize of output 414 [2023-11-26 12:01:31,468 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 414 treesize of output 398 [2023-11-26 12:01:31,495 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 398 treesize of output 386 [2023-11-26 12:01:31,893 INFO L378 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 8 treesize of output 6 [2023-11-26 12:01:32,052 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-26 12:01:32,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 84 [2023-11-26 12:01:32,522 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 42 proven. 29 refuted. 56 times theorem prover too weak. 164 trivial. 0 not checked. [2023-11-26 12:01:32,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1810211983] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 12:01:32,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-26 12:01:32,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 8, 14] total 34 [2023-11-26 12:01:32,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914173529] [2023-11-26 12:01:32,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-26 12:01:32,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-11-26 12:01:32,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 12:01:32,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-11-26 12:01:32,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=869, Unknown=30, NotChecked=0, Total=1122 [2023-11-26 12:01:32,527 INFO L87 Difference]: Start difference. First operand 269 states and 312 transitions. Second operand has 34 states, 34 states have (on average 3.0588235294117645) internal successors, (104), 34 states have internal predecessors, (104), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)